| Date | Panel | Item | Activity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mendeliome v1.1888 | CRNKL1 |
Mark Cleghorn gene: CRNKL1 was added gene: CRNKL1 was added to Mendeliome. Sources: Other Mode of inheritance for gene: CRNKL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Phenotypes for gene: CRNKL1 were set to complex neurodevelopmental disorder MONDO:0100038 Review for gene: CRNKL1 was set to GREEN Added comment: Unpublished, presented at ESHG June 2024 - Louise Bicknell, University of Otago NZ 8 unrelated families via gene matcher with rare, de novo, missense variants in CRNKL1 severe microcephaly (all, -8 to -11 SD) ID/epilepsy pontocerebellar hypoplasia (6/8) simplified gyration (8/8) 7 variants are missense at p.Arg267 residue 1 variant missense at p.Arg301 RNA-seq on patient fibroblasts - no alteration in gene expression Zebrafish homolog of Arg267 and Arg301 - mimics observed phenotype (reduced brain development), increased in embryo apoptosis RNA seq on affected zebrafish embryos - transcriptome strongly disrupted Splicing analysis in progress CRKNL1 supports U6 structure in spliceosome Sources: Other |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1884 | MYZAP |
Zornitza Stark changed review comment from: 10 individuals from four unrelated families with bi-allelic variants in this gene with DCM. Supportive zebrafish model. Note the MYZAP and GCOM1 genes are part of the GRINL1A complex transcription unit. Some of the reported variants affect GCOM1 with postulated effect on MYZAP due to read through transcription (two families), and in the rest of the families MYZAP was affected directly. Sources: Literature; to: 10 individuals from four unrelated families with bi-allelic variants in this gene with DCM. Supportive zebrafish model. The MYZAP gene is part of the GRINL1A complex transcription unit (CTU), or GCOM1, which also includes the downstream POLR2M gene, or GRINL1A.. Some of the reported variants affect GCOM1 with postulated effect on MYZAP due to read through transcription (two families), and in the rest of the families MYZAP was affected directly. Transcription from an upstream promoter within the GRINL1A CTU produces 2 types of alternatively spliced transcripts: MYZAP transcripts, also called GRINL1A upstream (GUP) transcripts, which include only exons from the MYZAP gene, and GRINL1A combined (GCOM) transcripts, which include exons from both the MYZAP gene and the downstream POLR2M gene. Transcription of the POLR2M gene initiates at a downstream promoter within the GRINL1A CTU and produces alternatively spliced POLR2M transcripts, also called GRINL1A downstream (GDOWN) transcripts, which include only exons from the POLR2M gene Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1883 | MYZAP |
Zornitza Stark gene: MYZAP was added gene: MYZAP was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MYZAP was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MYZAP were set to 34899865; 35840178; 38436102; 20093627 Phenotypes for gene: MYZAP were set to Cardiomyopathy, dilated, 2K, MIM# 620894 Review for gene: MYZAP was set to GREEN Added comment: 10 individuals from four unrelated families with bi-allelic variants in this gene with DCM. Supportive zebrafish model. Note the MYZAP and GCOM1 genes are part of the GRINL1A complex transcription unit. Some of the reported variants affect GCOM1 with postulated effect on MYZAP due to read through transcription (two families), and in the rest of the families MYZAP was affected directly. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1865 | PSMF1 |
Zornitza Stark gene: PSMF1 was added gene: PSMF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PSMF1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PSMF1 were set to https://www.medrxiv.org/content/10.1101/2024.06.19.24308302v1 Phenotypes for gene: PSMF1 were set to Complex neurodevelopmental disorder with motor features, MONDO:0100516, PSMF1-related Review for gene: PSMF1 was set to GREEN Added comment: 22 individuals from 15 families reported with a range of neurological phenotypes ranging from early-onset Parkinson's disease; childhood conditions typified by ID and a range of movement disorders; through to perinatal lethal presentations with arthrogryposis multiplex. Genotype-phenotype correlation: biallelic missense variants resulted in the milder phenotypes, while bi-allelic LoF variants in the more severe phenotypes. Supportive functional data. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1860 | VPS50 |
Ain Roesley changed review comment from: 1x proband Chet for a nonsense p.(Lys5*) and a complex structural variant of a 4.3Mb inversion, flanked by 170kb and 428kb deletions, respectively. The 428kb deletion spans the entire VPS50 gene. Sanger confirmed the Lys5* to be 'homozygous' in the proband. Phenotypes include: microcephaly, nystagmus, seizures, hypoplastic corpus callous, neonatal low GGT cholesatsis, hepatomegaly, failure to thrive; to: 1x proband Chet for a nonsense p.(Lys5*) and a complex structural variant of a 4.3Mb inversion, flanked by 170kb and 428kb deletions, respectively. The 428kb deletion spans the entire VPS50 gene. Sanger confirmed the Lys5* to be 'homozygous' in the proband. Phenotypes include: severe ID, muscular hypotonia, sensorineural hearing impairment, microcephaly, nystagmus, seizures, hypoplastic corpus callous, neonatal low GGT cholesatsis, hepatomegaly, failure to thrive |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1855 | VPS50 |
Ain Roesley changed review comment from: 1x proband Chet for a nonsense p.(Lys5*) and a complex structural variant of a 4.3Mb inversion, flanked by 170kb and 428kb deletions, respectively. The 428kb deletion spans the entire VPS50 gene. Sanger confirmed the Lys5* to be 'homozygous' in the proband. Phenotypes include: nystagmus, seizures, hypoplastic corpus callous, neonatal low GGT cholesatsis, hepatomegaly, failure to thrive; to: 1x proband Chet for a nonsense p.(Lys5*) and a complex structural variant of a 4.3Mb inversion, flanked by 170kb and 428kb deletions, respectively. The 428kb deletion spans the entire VPS50 gene. Sanger confirmed the Lys5* to be 'homozygous' in the proband. Phenotypes include: microcephaly, nystagmus, seizures, hypoplastic corpus callous, neonatal low GGT cholesatsis, hepatomegaly, failure to thrive |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1842 | MYH10 | Zornitza Stark Phenotypes for gene: MYH10 were changed from Microcephaly; Intellectual Disability to AD complex neurodevelopmental disorder with or without congenital anomalies (MONDO:0100465) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1840 | PRRX1 |
Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2. > PMID: 7758948 generated a loss-of-function mutation in the mouse Pmx1 gene. Mice homozygous for the mutant allele died soon after birth and exhibited defects of skeletogenesis, which involved the loss or malformation of craniofacial, limb, and vertebral skeletal structures. ; to: Craniosynostosis (MONDO:0015469), PRRX1-related > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) Agnathia-otocephaly complex, MIM# 202650 >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2. > PMID: 7758948 generated a loss-of-function mutation in the mouse Pmx1 gene. Mice homozygous for the mutant allele died soon after birth and exhibited defects of skeletogenesis, which involved the loss or malformation of craniofacial, limb, and vertebral skeletal structures. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1840 | PRRX1 |
Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2.; to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2. > PMID: 7758948 generated a loss-of-function mutation in the mouse Pmx1 gene. Mice homozygous for the mutant allele died soon after birth and exhibited defects of skeletogenesis, which involved the loss or malformation of craniofacial, limb, and vertebral skeletal structures. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1840 | PRRX1 |
Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708).; to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1840 | PRRX1 |
Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doen't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708).; to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1840 | PRRX1 |
Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly don't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651); to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain. > These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%. > These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149) > Authors discuss how the previous reports of agnathia-otocephaly doen't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import. Supporting evidence: > Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454) >Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651) >Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1816 | ATXN7L3 |
Chirag Patel gene: ATXN7L3 was added gene: ATXN7L3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATXN7L3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ATXN7L3 were set to PMID: 38753057 Phenotypes for gene: ATXN7L3 were set to Neurodevelopmental disorder, MONDO_0100500 Review for gene: ATXN7L3 was set to GREEN gene: ATXN7L3 was marked as current diagnostic Added comment: This study reports 9 unrelated individuals with de novo heterozygous variants in ATXN7L3 identified through WES testing and GeneMatcher. Core clinical features included: global motor and language developmental delay, hypotonia, and dysmorphic features (hypertelorism, epicanthal folds, blepharoptosis, small nose, small mouth, and low-set posteriorly rotated ears). Variable features included: feeding difficulties, seizures, mild periventricular leukomalacia, and structural cardiac abnormalities. A recurrent nonsense variant [p.(Arg114Ter)] was found in 5/9 individuals. The other variants were 1 frameshift [p.(Ser112LysfsTer12)] and 3 missense variants [p.(Ile71Thr), p.(Ser92Arg), and p.(Leu106Pro)]. They investigated the effects of the recurrent nonsense variant [p.(Arg114Ter)] in fibroblasts of an affected individual. ATXN7L3 protein levels were reduced, and deubiquitylation was impaired (as indicated by an increase in histone H2Bub1 levels). This is consistent with the previous observation of increased H2Bub1 levels in Atxn7l3-null mouse embryos, which have developmental delay and embryonic lethality. Pathogenic variants in deubiquitinating enzymes (DUBs) have been implicated in neurodevelopmental disorders (ND) and congenital abnormalities. ATXN7L3 is a component of the DUB module of the SAGA complex, and two other related DUB modules, and serves as an obligate adaptor protein of 3 ubiquitin-specific proteases (USP22, USP27X or USP51). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1814 | FAM177A1 |
Chirag Patel gene: FAM177A1 was added gene: FAM177A1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FAM177A1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FAM177A1 were set to PMID: 38767059, 25558065 Phenotypes for gene: FAM177A1 were set to Neurodevelopmental disorder, MONDO_0100500 Review for gene: FAM177A1 was set to GREEN gene: FAM177A1 was marked as current diagnostic Added comment: PMID: 38767059 5 individuals from 3 unrelated families reported with with biallelic loss of function variants in FAM177A1. Clinical features included: global developmental delay, intellectual disability, seizures, behavioural abnormalities, hypotonia, gait disturbance, and macrocephaly. They showed that FAM177A1 localizes to the Golgi complex in mammalian and zebrafish cells. Intersection of the RNA-seq and metabolomic datasets from FAM177A1-deficient human fibroblasts and whole zebrafish larvae demonstrated dysregulation of pathways associated with apoptosis, inflammation, and negative regulation of cell proliferation. PMID: 25558065 A study of 143 multiplex consanguineous families identified a homozygous frameshift variant in FAM177A1 in 1 family with 4 affected siblings with intellectual disability, dolicocephaly, obesity, and macrocephaly. The variant segregated with all 4 affected siblings and parents were confirmed heterozygous carriers. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1787 | AGTR2 |
Zornitza Stark changed review comment from: Variants in AGTR2 have been reported in individuals presenting various neurodevelopmental phenotypes, including intellectual disability, autistic features, epileptic seizures, speech delay, restlessness, and hyperactivity, as early as 2002. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found no difference in molecular mechanism, inheritance pattern, or phenotypic variability. Therefore, for the purposes of this curation, all of these features have been lumped into one disease entity, X-linked complex neurodevelopmental disorder. Although eight unique variants, including missense and truncating, have been reported in affected humans, the majority (six) have been ruled out from disease-causality based on high frequency in control populations (Piton et al., PMID 23871722), occurrence in unaffected males (Erdmann et al., PMID 14722754), non-segregation within a family (Bienvenu et al., PMID 12746399), and lack of enrichment in patients in a case-control study (Huang et al., PMID 16283672). Given that the two remaining variants are missense with no supporting functional evidence, and AGTR2 was the only gene sequenced in each case, the ClinGen Intellectual Disability and Autism Working Group recommended awarding 0 points for these variants. There are two AGTR2 mouse models which collectively show altered neuronal spine morphology, spatial memory impairment, delayed learning, and reduced exploratory behavior (PMIDs 18335189 and 7477267). Sources: Expert Review; to: DISPUTED by ClinGen: Variants in AGTR2 have been reported in individuals presenting various neurodevelopmental phenotypes, including intellectual disability, autistic features, epileptic seizures, speech delay, restlessness, and hyperactivity, as early as 2002. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found no difference in molecular mechanism, inheritance pattern, or phenotypic variability. Therefore, for the purposes of this curation, all of these features have been lumped into one disease entity, X-linked complex neurodevelopmental disorder. Although eight unique variants, including missense and truncating, have been reported in affected humans, the majority (six) have been ruled out from disease-causality based on high frequency in control populations (Piton et al., PMID 23871722), occurrence in unaffected males (Erdmann et al., PMID 14722754), non-segregation within a family (Bienvenu et al., PMID 12746399), and lack of enrichment in patients in a case-control study (Huang et al., PMID 16283672). Given that the two remaining variants are missense with no supporting functional evidence, and AGTR2 was the only gene sequenced in each case, the ClinGen Intellectual Disability and Autism Working Group recommended awarding 0 points for these variants. There are two AGTR2 mouse models which collectively show altered neuronal spine morphology, spatial memory impairment, delayed learning, and reduced exploratory behavior (PMIDs 18335189 and 7477267). Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1787 | AGTR2 |
Zornitza Stark gene: AGTR2 was added gene: AGTR2 was added to Mendeliome. Sources: Expert Review disputed tags were added to gene: AGTR2. Mode of inheritance for gene: AGTR2 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Phenotypes for gene: AGTR2 were set to X-linked complex neurodevelopmental disorder MONDO:0100148 Review for gene: AGTR2 was set to RED Added comment: Variants in AGTR2 have been reported in individuals presenting various neurodevelopmental phenotypes, including intellectual disability, autistic features, epileptic seizures, speech delay, restlessness, and hyperactivity, as early as 2002. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found no difference in molecular mechanism, inheritance pattern, or phenotypic variability. Therefore, for the purposes of this curation, all of these features have been lumped into one disease entity, X-linked complex neurodevelopmental disorder. Although eight unique variants, including missense and truncating, have been reported in affected humans, the majority (six) have been ruled out from disease-causality based on high frequency in control populations (Piton et al., PMID 23871722), occurrence in unaffected males (Erdmann et al., PMID 14722754), non-segregation within a family (Bienvenu et al., PMID 12746399), and lack of enrichment in patients in a case-control study (Huang et al., PMID 16283672). Given that the two remaining variants are missense with no supporting functional evidence, and AGTR2 was the only gene sequenced in each case, the ClinGen Intellectual Disability and Autism Working Group recommended awarding 0 points for these variants. There are two AGTR2 mouse models which collectively show altered neuronal spine morphology, spatial memory impairment, delayed learning, and reduced exploratory behavior (PMIDs 18335189 and 7477267). Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1778 | KCNIP4 |
Ain Roesley gene: KCNIP4 was added gene: KCNIP4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KCNIP4 was set to Unknown Publications for gene: KCNIP4 were set to 33826137 Phenotypes for gene: KCNIP4 were set to seizures; epilepsy Review for gene: KCNIP4 was set to RED gene: KCNIP4 was marked as current diagnostic Added comment: single paper describing insertions of L1 retrotransposons in KCNIP4 samples were post-mortem of resected temporal cortex from individuals with idiopathic temporal lobe epilepsy 1x de novo insertion of L1 in KCNIP4 however ddPCR revealed that this did NOT alter KCNIP4 mRNA expression Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1758 | RAB32 |
Bryony Thompson gene: RAB32 was added gene: RAB32 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB32 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAB32 were set to 38614108 Phenotypes for gene: RAB32 were set to Parkinson disease MONDO:0005180 Mode of pathogenicity for gene: RAB32 was set to Other Review for gene: RAB32 was set to RED Added comment: A single variant in RAB32 - c.213C>G p.(Ser71Arg) with a significant association with PD (odds ratio [OR] 13.17, 95% CI 2.15-87.23; p=0.0055, 6,043 PD cases and 62,549 controls). The variant cosegregated with autosomal dominant PD in 3 families (9 affected individuals), with incomplete penetrance. In vitro studies demonstrate that RAB32 Ser71Arg activates LRRK2 kinase. The variant is reported as a novel reduced penetrance PD risk factor. The 95% CI for the OR estimate are very wide. A confirmatory study is required for this variant. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1737 | SLC4A7 |
Chirag Patel gene: SLC4A7 was added gene: SLC4A7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC4A7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC4A7 were set to PMID: 35486108, 32594822 Phenotypes for gene: SLC4A7 were set to Retinitis pigmentosa, MONDO:0019200 Review for gene: SLC4A7 was set to AMBER Added comment: Total 4 individuals from 3 families (2 known to be from same ethnic origin: Oriental-Jewish) with adult onset retinitis pigmentosa. All individuals had same homozygous frameshift variant in SLC4A7 gene (p.P670Sfs*6). RNA seq analysis revealed retinal expression in human and mouse samples. Immunohistochemistry of human and mouse retina revealed relatively strong expression in various retinal layers. Western blot analysis in fibroblasts from 1 patient showed absence of encoded protein. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1736 | SLC39A12 |
Chirag Patel gene: SLC39A12 was added gene: SLC39A12 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC39A12 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC39A12 were set to PMID: 35486108 Phenotypes for gene: SLC39A12 were set to Retinitis pigmentosa, MONDO:0019200 Review for gene: SLC39A12 was set to RED Added comment: WES (with targeted analysis of SLC genes) in 913 cases from 785 families with inherited retinal dystrophy. They identified 1 homozygous variant in SLC39A12 in 1 individual with adult-onset mild widespread retinal degeneration with marked macular involvement. No functional data. RNA seq analysis revealed retinal expression in human samples. Immunohistochemistry of human and mouse retina revealed comprehensive expression in various retinal cells including retinal pigment epithelium. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1733 | SUPT7L |
Chirag Patel gene: SUPT7L was added gene: SUPT7L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SUPT7L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SUPT7L were set to PMID: 38592547 Phenotypes for gene: SUPT7L were set to Lipodystrophy, MONDO:0006573 Review for gene: SUPT7L was set to RED Added comment: 1 case with generalised lipodystrophy, growth retardation, congenital cataracts, severe developmental delay and progeriod features. Trio WGS identified compound heterozygous variants in SUPT7L (missense causing abnormal splicing + frameshift). Variants validated with Sanger. SUPT7L encodes a component of the core structural module of the STAGA complex - a nuclear multifunctional protein complex that plays a role in various cellular processes (e.g. transcription factor binding, protein acetylation, splicing, and DNA damage control). Immunolabelling in fibroblasts from patient showed complete absence of SUPT7L protein. Transcriptome data from individual revealed downregulation of several gene sets associated with DNA replication, DNA repair, cell cycle, and transcription. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1664 | MCOLN1 | Zornitza Stark edited their review of gene: MCOLN1: Added comment: PMID 37972748: 23 affected individuals from 13 families with Lisch epithelial corneal dystrophy. WGS in 2 families and then targeted Sanger sequencing in the other families identified 9 rare heterozygous loss of function variants in MCOLN1. Homozygous and compound-heterozygous state of 4 of 9 LECD-associated variants cause Mucolipidosis IV (MLIV), which comprises neurodegeneration as well as corneal opacity of infantile-onset with epithelial autofluorescent lysosomal inclusions. Six parents of 3 patients with MLIV confirmed to carry pathogenic MCOLN1 variants did not have the LECD phenotype. Heterozygous MCOLN1 variants can be associated with incomplete penetrance and variable expressivity of LECD with an estimated penetrance of 0.2% for MCOLN1 loss-of-function variants based on gnomAD.; Changed publications: 37972748; Changed phenotypes: Mucolipidosis IV, MIM# 252650, MONDO:0009653, Lisch epithelial corneal dystrophy, OMIM# 620763; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1648 | CEP295 |
Chirag Patel gene: CEP295 was added gene: CEP295 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CEP295 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CEP295 were set to PMID: 38154379 Phenotypes for gene: CEP295 were set to Seckel syndrome 11, OMIM # 620767 Review for gene: CEP295 was set to GREEN gene: CEP295 was marked as current diagnostic Added comment: 4 children from 2 unrelated families with Seckel-like syndrome - severe primary microcephaly, short stature, developmental delay, intellectual disability, facial deformities, and abnormalities of fingers and toes. WES identified biallelic pathogenic variants in CEP295 gene (p(Q544∗) and p(R1520∗); p(R55Efs∗49) and p(P562L)). Patient-derived fibroblasts and CEP295-depleted U2OS and RPE1 cells were used to clarify the underlying mechanisms. Depletion of CEP295 resulted in a decrease in the numbers of centrioles and centrosomes and triggered p53-dependent G1 cell cycle arrest. Loss of CEP295 caused extensive primary ciliary defects in both patient-derived fibroblasts and RPE1 cells. The results from complementary experiments revealed that the wild-type CEP295, but not the mutant protein, can correct the developmental defects of the centrosome/centriole and cilia in the patient-derived skin fibroblasts. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1646 | SASS6 |
Ain Roesley commented on gene: SASS6: PMID: 38501757 1x compound het for a fs and +3 splice variant. Using cDNA RT-ed from mother's RNA, exons 13-15 were amplified and exon 14 was found to be skipped resulting in c.1546_1674del and p.516_558del PMID: 36739862 1x family, compound het for 2 missense Functional studies not performed |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1646 | FANCI | Ain Roesley Phenotypes for gene: FANCI were changed from Fanconi anemia, complementation group I, MIM# 609053; MONDO:0012186 to Fanconi anemia, complementation group I, MIM# 609053; MONDO:0012186; primary ovarian failure MONDO:0005387, FANCI-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1580 | NIT1 |
Paul De Fazio gene: NIT1 was added gene: NIT1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NIT1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NIT1 were set to 38430071 Phenotypes for gene: NIT1 were set to Cerebrovascular disorder, NIT1-related (MONDO:0011057) Penetrance for gene: NIT1 were set to unknown gene: NIT1 was marked as current diagnostic Added comment: 5 unrelated families reported with recessively inherited cerebral small vessel disease had compound hetereozygous or homozygous variants in NIT1. 1 family (3 siblings) had p.(Ala68*) in trans with p.(Arg243Trp), the remaining 4 families (1 individual each) were all homozygous for p.(Arg243Trp). Patients presented in mid-adulthood with progressive movement disorders (e.g. dystonia, chorea, bradykinesia and tremor, gait disturbance, dysarthria) and had abnormal brain MRI findings (honeycomb appearance of the basal ganglia-thalamus complex, due to numerous strongly dilated PVS). 3 patients had non-lobar intracerebral hemorrhage. Slowly progressive cognitive decline was also a key feature. Metabolic analysis in urine confirmed loss of NIT1 enzymatic function. Note p.(Arg243Trp) has 1 homozygote in gnomAD v4, but permitted due to later presentation in reported patients. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1573 | PI4K2A | Zornitza Stark Phenotypes for gene: PI4K2A were changed from complex neurodevelopmental disorder with motor features, PI4K2A-related, MONDO:0100516; Cutis laxa, intellectual disability, movement disorder to Neurodevelopmental disorder with hyperkinetic movements, seizures and structural brain abnormalities, MIM# 620732; Cutis laxa, intellectual disability, movement disorder | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1538 | SCGN |
Achchuthan Shanmugasundram gene: SCGN was added gene: SCGN was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SCGN was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SCGN were set to 31663849 Phenotypes for gene: SCGN were set to ulcerative colitis, MONDO:0005101 Review for gene: SCGN was set to AMBER Added comment: PMID:31663849 reported three siblings with homozygous missense SCGN variant and with early-onset ulcerative colitis. Functional studies demonstrated that SCGN variant identified impacted the localisation of the SNARE complex partner, SNAP25, leading to impaired hormone release. In addition, SCGN knockout mouse model recapitulated impaired hormone release and susceptibility to DSS-induced colitis. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1529 | NDUFB9 |
Zornitza Stark edited their review of gene: NDUFB9: Added comment: PMID: 38129218: Thr144Met, listed as ACMG-P, hom in 1x pt with mito complex I deficiency and leukodystrophy, no functional studies, both parents are het. However, this variant has 2 homozygotes in gnomADv4 so unlikely pathogenic.; Changed publications: 22200994, 38129218 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1513 | NUP160 |
Melanie Marty changed review comment from: PMID: 30910934 1 x patient with familial steroid-resistant nephrotic syndrome (SRNS) and FSGS carried novel compound-heterozygous variants in NUP160 (R1173X and E803K). Silencing of Drosophila NUP160 specifically in nephrocytes (fly renal cells) led to functional abnormalities, reduced cell size and nuclear volume, and disorganized nuclear membrane structure. These defects were completely rescued by the expression of the wild-type human NUP160 gene in nephrocytes. PMID: 30179222 1 x family (2 sibs) with compound het variants E803K and Arg910X. 1 Sib had SRNS and FSGS, the other had proteinuria. PMID: 33456446 1 x family (2 sibs) with steroid-resistant nephrotic syndrome and chronic kidney disease. Homozygous for NUP160 c.1179+5G>A, confirmed by RT-PCR to cause abnormal splicing [r.1102_1179del;p.(Phe368_Gln393del)]. These individuals also had additional neurological features of intellectual disability and epilepsy. PMID: 38224683 Generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse mode using CRISPR/Cas9 and Cre/loxP technologies. They showed that Nup160podKO mice develop typical signs of NS.; to: PMID: 30910934 1 x patient with familial steroid-resistant nephrotic syndrome (SRNS) and FSGS carried novel compound-heterozygous variants in NUP160 (R1173X and E803K). Silencing of Drosophila NUP160 specifically in nephrocytes (fly renal cells) led to functional abnormalities, reduced cell size and nuclear volume, and disorganized nuclear membrane structure. These defects were completely rescued by the expression of the wild-type human NUP160 gene in nephrocytes. PMID: 30179222 1 x family (2 sibs) with compound het variants E803K and Arg910X. 1 Sib had SRNS and FSGS, the other had proteinuria. PMID: 33456446 1 x family (2 sibs) with SRNS and chronic kidney disease. Homozygous for NUP160 c.1179+5G>A, confirmed by RT-PCR to cause abnormal splicing [r.1102_1179del;p.(Phe368_Gln393del)]. These individuals also had additional neurological features of intellectual disability and epilepsy. PMID: 38224683 Generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse model using CRISPR/Cas9 and Cre/loxP technologies. They showed that Nup160podKO mice develop typical signs of NS. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1511 | MEI4 |
Lisa Norbart changed review comment from: PMID: 38252283 - 5x compound heterozygous missense variants and 1x homozygous missense variant seen in five individuals across 4 unrelated families affected with female infertility characterised by preimplantation embryonic arrest. Includes one family with two affected sisters with the same compound heterozygous variants. 2/4 families showed inheritance, parental data not available for other two families. Homozygous variant in the consanguineous family appears with a more severe phenotype. In vitro evidence shows variants reduced the interactions between MEI4 and DNA, but no effects on protein levels. In vivo knock-out mouse model showed female mice were infertile, characterised by developmental defects during oogenesis. Sources: Literature; to: PMID: 38252283 - 5x compound heterozygous missense variants and 1x homozygous missense variant seen in five individuals across 4 unrelated families affected with female infertility characterised by preimplantation embryonic arrest. Includes one family with two affected sisters with the same compound heterozygous variants. 2/4 families showed inheritance, parental data not available for other two families. Homozygous variant in the consanguineous family appears with a more severe phenotype. In vitro evidence shows variants reduced the interactions between MEI4 and DNA, but no effects on protein levels. In vivo knock-out mouse model showed female mice were infertile, characterised by developmental defects during oogenesis. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1507 | MEI4 |
Lisa Norbart gene: MEI4 was added gene: MEI4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MEI4 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: MEI4 were set to 38252283 Phenotypes for gene: MEI4 were set to Infertility disorder, MONDO:0005047, MEI4-related Review for gene: MEI4 was set to GREEN Added comment: PMID: 38252283 - 5x compound heterozygous missense variants and 1x homozygous missense variant seen in five individuals across 4 unrelated families affected with female infertility characterised by preimplantation embryonic arrest. Includes one family with two affected sisters with the same compound heterozygous variants. 2/4 families showed inheritance, parental data not available for other two families. Homozygous variant in the consanguineous family appears with a more severe phenotype. In vitro evidence shows variants reduced the interactions between MEI4 and DNA, but no effects on protein levels. In vivo knock-out mouse model showed female mice were infertile, characterised by developmental defects during oogenesis. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1459 | CACHD1 | Zornitza Stark reviewed gene: CACHD1: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: syndromic complex neurodevelopmental disorder MONDO:0800439; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1457 | CACHD1 |
Suliman Khan gene: CACHD1 was added gene: CACHD1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CACHD1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CACHD1 were set to PMID: 38158856 Phenotypes for gene: CACHD1 were set to syndromic complex neurodevelopmental disorder MONDO:0800439 Penetrance for gene: CACHD1 were set to unknown Review for gene: CACHD1 was set to GREEN Added comment: Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1457 | BORCS8 |
Lauren Rogers changed review comment from: 3 unrelated families with five affected children with homozygous or compound heterozygous loss of function missense and PTC variants. HEK293T cells show the missense variants are expressed at normal levels but exhibit reduced assembly with other BORC subunits and reduced ability to drive lysosome distribution. The BORCS8 PTC frameshift variant is expressed at lower levels and is completely incapable of assembling with other BORC subunits and promoting lysosome distribution. Zebrafish KO of the orthologous brocs8 causes decreased brain and eye size, neuromuscular anomalies and impaired locomotion, recapitulating some of the key traits of the human disease. Sources: Literature; to: 3 unrelated families with five affected children with homozygous or compound heterozygous loss of function missense and PTC variants. 5/5 hypotonia, failure to thrive, global developmental delay, profound intellectual disability, muscle weakness and atrophy, dysmorphic features. 3/5 with microcephaly, 3/5 with seizures, 4/5 with spasticity, 3/5 with scoliosis, 4/4 with optic atrophy. HEK293T cells show the missense variants are expressed at normal levels but exhibit reduced assembly with other BORC subunits and reduced ability to drive lysosome distribution. The BORCS8 PTC frameshift variant is expressed at lower levels and is completely incapable of assembling with other BORC subunits and promoting lysosome distribution. Zebrafish KO of the orthologous brocs8 causes decreased brain and eye size, neuromuscular anomalies and impaired locomotion, recapitulating some of the key traits of the human disease. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1457 | BORCS8 |
Lauren Rogers gene: BORCS8 was added gene: BORCS8 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BORCS8 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BORCS8 were set to 38128568 Phenotypes for gene: BORCS8 were set to Neurodevelopmental disorder (MONDO#0700092), BORCS8-related Review for gene: BORCS8 was set to GREEN Added comment: 3 unrelated families with five affected children with homozygous or compound heterozygous loss of function missense and PTC variants. HEK293T cells show the missense variants are expressed at normal levels but exhibit reduced assembly with other BORC subunits and reduced ability to drive lysosome distribution. The BORCS8 PTC frameshift variant is expressed at lower levels and is completely incapable of assembling with other BORC subunits and promoting lysosome distribution. Zebrafish KO of the orthologous brocs8 causes decreased brain and eye size, neuromuscular anomalies and impaired locomotion, recapitulating some of the key traits of the human disease. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1442 | LCK |
Zornitza Stark edited their review of gene: LCK: Added comment: Additional cases: PMID 38100037: Description of a second unrelated patient with novel biallelic missense LCK c.1393T>C, p.C465R variant in a patient from a consanguineous Syrian family with profound T-cell immune deficiency characterized by complete LCK protein expression deficiency and ensuing proximal TCR signaling-and CD4 and CD8-co-receptor-mediated functional and phenotypical defects. PMID: 27087313 reported 3 siblings of a consanguineous family presenting with recurrent pneumonia and severe viral skin disease leading to malignant transformation. The patients had an intronic LCK c.188-2A>G splice site variant resulting in skipping of exon 3 and mRNA decay. Clinical data alongside with CD4+ T-cell lymphocytopenia suggested a hypomorphic LCK deficiency.; Changed rating: GREEN; Changed publications: 22985903, 1579166, 11021796, 27087313, 38100037 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1402 | KCNJ3 |
Daniel Flanagan gene: KCNJ3 was added gene: KCNJ3 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: KCNJ3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KCNJ3 were set to PMID: 37963718 Phenotypes for gene: KCNJ3 were set to Epilepsy (MONDO#0005027), KCNJ3-related Review for gene: KCNJ3 was set to AMBER Added comment: Two de novo missense variants, p.(Leu333Ser) and p.(Arg313Gln), were identified in two unrelated probands with epilepsy. 1/2 had developmental delay. Whole-cell patch-clamp functional studies showed a significantly reduction in current amplitude and density. Kcnj3-knockout mice display hyperactivity and decreased anxiety, while a knock-in mouse line displays spontaneous seizure-like activity. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1401 | SEL1L |
Sarah Pantaleo gene: SEL1L was added gene: SEL1L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SEL1L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SEL1L were set to PMID: 37943610; PMID: 37943617 Phenotypes for gene: SEL1L were set to Neurodevelopmental disorder, MONDO:0700092, SEL1L-related Penetrance for gene: SEL1L were set to Complete Added comment: Wang paper PMID: 37943610 SEL1L protein is involved in the SEL1L-HRD1 endoplasmic reticulum (ER)-associated degradation. Report two biallelic missense variants in SEL1L in six children from three independent families presenting with developmental delay, intellectual disability, microcephaly, facial dysmorphisms, hypotonia and/or ataxia (termed ERAD-associated neurodevelopment disorder with onset in infancy (ENDI). The variants were hypomorphic and impaired ERAD function. Identified by WES. Parents heterozygous and asymptomatic. P.(Gly585Asp) in Patient 1, p.(Met528Arg) in Patients 2 and 3 (siblings). All variants cause substrate accumulation. The extent of substrate accumulation in knockin cells was modest compared to those in knockout cells, pointing to a hypomorphic nature. They also had a variant in HRD1. Weis paper PMID: 37943617 Third variant p.(Cys141Tyr), biallelic, causing premature death in five patients from a consanguineous family with early-onset neurodevelopmental disorders and agammaglobulinaemia due to severe SEL1L-HRD1 ERAD dysfunction. This variant appears to have a more severe outcome, exhibiting B cell depletion and agammaglobulinaemia, causing the most severe dysfunction among all of the variants described by this group so far. They postulate that functionality of SEL1L-HRD1 ERAD is inversely correlated with disease severity in humans. Their symptoms were dev delay, neurological disorder and agammaglobulinaemia in childhood. Along with severe axial hypotonia, short stature and microcephaly. “Not a complete loss-of-function variant”. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1401 | FOXL1 |
Lilian Downie gene: FOXL1 was added gene: FOXL1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FOXL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: FOXL1 were set to PMID: 34633540 Phenotypes for gene: FOXL1 were set to Otosclerosis 11 #MIM620576 Review for gene: FOXL1 was set to RED Added comment: Single paper with variant in large AD family from Newfoundland with otosclerosis, hearing loss onset varied from late teens onwards. Segregation not completely convincing, 1 person with the deletion without otosclerosis. Conductive HL, sometimes mixed, not isolated SNHL. Second family with common haplotype and same 15bp deletion with otosclerosis. Functional studies. High population frequency and 3x homozygotes. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1400 | ACBD6 |
Lucy Spencer edited their review of gene: ACBD6: Added comment: PMID: 37951597 Much larger cohort with - 45 individuals from 28 families with a neurodevelopmental syndrome with complex and progressive movement disorder phenotype. 18 PTCs and splice, 1 missense 1 in frame insertion. Phenotypes: weight was >50th percentile in 20/34 patients, all mod-severe GDD, facial dysmorphism in 38/40, mild cerebellar ataxia 35/41, limb spasticity/hypertonia 31/41, gait abnormalities in 33/35.; Changed publications: 37951597 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1390 | FA2H |
Zornitza Stark changed review comment from: Well established gene-disease association, both peripheral and central features (dystonia, dysarthria, cognitive impairment, and epilepsy), childhood-onset, progressive. Sources: Expert Review; to: Well established gene-disease association, both peripheral and central features (dystonia, dysarthria, cognitive impairment, and epilepsy), childhood-onset, progressive. PubMed: 31135052 – 19 patients from 16 families consistent with a complicated form of SPG. PubMed:18463364 – 7 individuals identified from a large consanguineous family with SPG. PubMed: 19068277 – 7 patients from 2 unrelated consanguineous middle eastern families PubMed: 20104589– Multiple affected individuals in an Omani family. Findings indicated that an abnormal hydroxylation of myelin galactocerebroside lipid components can lead to the progression of a severe phenotype. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1340 | CCDC66 |
Anna Ritchie gene: CCDC66 was added gene: CCDC66 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CCDC66 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CCDC66 were set to PMID: 37852749 Review for gene: CCDC66 was set to RED Added comment: Nonsense variant (c.172C>T, p.Q58X) segregating in family with 5 affected members with high myopia (HM). Additionally, one family member with the variant displayed no symptoms, hinting at possible incomplete penetrance. Six other rare variants were identified in 200 sporadic high myopia patients that could potentially be linked to HM. A deficiency in CCDC66 might disrupt cell proliferation by influencing the mitotic process during retinal growth, leading to HM. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1330 | CASP2 |
Lisa Norbart gene: CASP2 was added gene: CASP2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CASP2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CASP2 were set to 37880421 Phenotypes for gene: CASP2 were set to neurodevelopmental disorder MONDO:0700092, CASP2-related Penetrance for gene: CASP2 were set to Complete Review for gene: CASP2 was set to GREEN gene: CASP2 was marked as current diagnostic Added comment: 7 patients from 5 families 4 families hom for PTCs, 1 family Chet for splice+PTC RNA studies done for the splice to indicate usage of two cryptic splice donor sites 5/5 have ID/dev delay 1/5 has seizures 2/5 hypotonia 3/5 lissencephaly (pachygyria and cortical thickening) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1318 | ZFHX3 | Zornitza Stark edited their review of gene: ZFHX3: Added comment: 41 individuals with protein truncating variants (PTVs) or (partial) deletions of ZFHX3. Presentations included (mild) ID and/or behavioural problems, postnatal growth retardation, feeding difficulties, dysmorphism (rarely cleft palate). Nuclear abundance of ZFHX3 increases during human brain development and neuronal differentiation in neural stem cells and SH-SY5Y cells, ZFHX3 interacts with the chromatin remodelling BRG1/Brm-associated factor complex and the cleavage and polyadenylation complex. ZFHX3 haploinsufficiency associates with a specific DNA methylation profile in leukocyte-derived DNA, and participates in chromatin remodelling and mRNA processing.; Changed publications: 37292950; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, ZFHX3-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1300 | IL23R | Zornitza Stark edited their review of gene: IL23R: Added comment: PMID 36763636: Six individuals from four unrelated Iranian kindreds with AR complete IL-23R deficiency presenting MSMD with complete penetrance. Also some patients with susceptibility to CMC with incomplete penetrance.; Changed rating: GREEN; Changed publications: 30578351, 35829840, 36763636; Changed phenotypes: Immunodeficiency disease, MONDO:0021094, Inherited susceptibility to mycobacterial disease, MONDO:0019146, IL23R-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1254 | CFAP20 |
Sarah Pantaleo gene: CFAP20 was added gene: CFAP20 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CFAP20 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CFAP20 were set to PMID:36329026 Phenotypes for gene: CFAP20 were set to Retinitis pigmentosa (MONDO:0019200) Review for gene: CFAP20 was set to GREEN Added comment: CFAP20 is a ciliopathy candidate. Demonstrate in zebrafish that cfap20 is required for motile cilia function, and in C. elegans, CFAP-20 maintains the structural integrity of non-motile cilia inner junctions, influencing sensory-dependent signalling and development. Human patients and zebrafish with CFAP20 mutations both exhibit retinal dystrophy (retinitis pigments). Hence, CFAP20 functions within a structural./functional hub centred on the inner junction that is shared between motile and non-motile cilia, and is distinct from other ciliopathy-associaetd domains or macromolecular complexes. Describe 8 individuals from 4 independent families with damaging biallelic variants (homozygous or compound heterozygous) in CFAP20 that segregate with retinal dystrophy. All variants cluster to one side of the protein, with two of the residues directly contacting alpha-tubullin. Family 1 - consanguineous set of 3 siblings from Sudan, homozygous for CFAP20 c.305G>A; p.Arg102His (they also had a homozygous variant in DYNC1LI2 however CFAP20 was considered the better candidate. Family 2 - 3 siblings from Spain, 2 with retinal dystrophy, 1 genetically tested and has c.337C>T; p.(Arg113Trp) and c.397delC; p.(Gln133Serfs*5) Family 3 - single affected family member compound het for c.164+1G>A and c.457A>G; p.(Arg153Gly). Family 4 - 3 affected siblings with generalised retinopathy and variable neurological deficits with c.164+1G>A and c.257G>A; p.(Tyr86Cys) For all families, no individuals had signs of polycystic kidney disease; however, not all individuals had kidney imaging. Visual defecit phenotype presented between adolescence and adulthood (17-56 years old). Used HEK293T cell expression studies to demonstrate a statistically significant decline of mutated CFAP20 protein levels (with the exception of p.Arg102His). To test the specific variants, they used the C.elegans orthologues. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1249 | MAST4 |
Ain Roesley gene: MAST4 was added gene: MAST4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MAST4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MAST4 were set to 36910266; 33057194 Phenotypes for gene: MAST4 were set to neurodevelopmental disorder MONDO:0700092, MAST4-related Penetrance for gene: MAST4 were set to Complete Review for gene: MAST4 was set to GREEN gene: MAST4 was marked as current diagnostic Added comment: PMID: 36910266 - 4 families with 4 affecteds, all de novo missense 2x borderline microcephaly (-2SD) 2x gross motor delay 2x dysmorphism 4x ID + seizures 3x abnormal brain MRI findings PMID: 33057194 - 5x de novos, 4x missense + 1x PTC Cohort of individuals with severe developmental disorder individual phenotypic information not provided Recurrent variants are Thr1471Ile (3x) and Ser1181Phe) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1158 | DBR1 |
Zornitza Stark edited their review of gene: DBR1: Added comment: PMID: 37656279: - A homozygous missense as a founder recessive DBR1 variant in four consanguineous families. - Total of 7 affected children. WES done for one proband from each family. - Consistent features include prematurity, severe intrauterine growth deficiency, congenital ichthyosis-like presentation (collodion membrane, severe skin peeling and xerosis), and death before the first year of life. - RNA and protein studies using fibroblasts derived from a patient are supportive of pathogenicity: RNA-seq, rt-qPCR and western blotting, showing marked reduction of DBR1 level and intronic RNA lariat accumulation in the patient sample. - Haplotype analysis revealed that the four families all share a haplotype extending at least 2.27 Mb around the c.200A>G p.(Tyr67Cys) DBR1 founder variant. - Authors proposed this is a novel DBR1-related developmental disorder that is distinct from DBR1-related encephalitis susceptibility, and highlighted the apparent lack of correlation with the degree of DBR1 deficiency.; Changed publications: 29474921, 37656279; Changed phenotypes: {Encephalitis, acute, infection (viral)-induced, susceptibility to, 11}, MIM# 619441, Viral infections of the brainstem, Ichthyosis (MONDO#0019269), DBR1-related |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1152 | RAB5C |
Rylee Peters gene: RAB5C was added gene: RAB5C was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB5C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAB5C were set to PMID: 37552066 Phenotypes for gene: RAB5C were set to Neurodevelopmental disorder MONDO:0700092, RAB5C-related Penetrance for gene: RAB5C were set to Complete Review for gene: RAB5C was set to GREEN gene: RAB5C was marked as current diagnostic Added comment: 12 individuals with nine different heterozygous de novo variants in RAB5C. 9 with missense, 1 inframe duplication and 2 stop-gains (clinically more severe). All has mild-severe ID, 4/12 have epilepsy, 6/12 have macrocephaly (more than 3 SD). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1117 | APOL1 |
Zornitza Stark edited their review of gene: APOL1: Added comment: Assigned Definitive gene-disease validity by the ClinGen Glomerulopathy GCEP - Classification - 09/28/2021 Increased risk of kidney and glomerular diseases in persons carrying two of the risk alleles in this gene: G1/G1, G2/G2 and compound heterozygous G1/G2. PMID: 20647424 - first study to identify G1 & G2 alleles associated with risk of renal disease. Comparing participants with zero or 1 risk allele of APOL1 to participants with 2 risk alleles provided an odds ratio for FSGS of 10.5 (CI, 6.0-18.4). This analysis supported a completely recessive pattern of inheritance. PMID: 25993319 - only G1 and G2 confer renal risk, and other common and rare APOL1 missense variants, including the archaic G3 haplotype, do not contribute to sporadic FSGS and HIVAN rs73885319 (G1) OR 9.66, p=9.97E-25 rs60910145 (G1) OR 9.75, p=9.04E-24 rs71785313 (G2) OR 5.69, p=3.39E-06 2 APOL1 risk alleles OR 18.31, p=3.31E-58 PMID: 34350953 - recessive gain-of-function toxicity mouse model recapitulates human kidney disease G1: p.Ser342Gly, AFR/AA gnomAD v2.1 AF 0.2276 (5,671/24,920 alleles, 687 homozygotes) p.Ile384Met, AFR/AA gnomAD v2.1 AF 0.2278 (5,487/24,082 alleles, 662 homozygotes) G2: p.Asn388_Tyr389del, AFR/AA gnomAD v2.1 AF 0.1402(3,402/24,268 alleles, 224 homozygotes AMBER status due to these being susceptibility alleles, and evidence being limited to these specific variants.; Changed rating: AMBER |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1117 | GOSR2 |
Achchuthan Shanmugasundram changed review comment from: Four children from two sibships from an extended consanguineous Palestinian family were reported with congenital profound hearing loss, whereas the parents of both sibships are first cousins with normal hearing. The families reported occasional febrile seizures in infancy for each of the deaf children, but these did not persist into adolescence. These affected children were identified with autosomal recessive GOSR2 variant, c.1A > C, p.Met1Leu. This variant appeared once in the gnomAD database, as a heterozygote, and not in any of ~2000 in-house controls of Palestinian ancestry. All previously reported cases with biallelic GOSR2 variants had normal hearing and hence the differences in translation efficiency due to the effect of this variant may be responsible for this hearing loss phenotype (PMID:37074134).; to: This gene should be added in 'Deafness_IsolatedAndComplex' panel with red rating. Four children from two sibships from an extended consanguineous Palestinian family were reported with congenital profound hearing loss, whereas the parents of both sibships are first cousins with normal hearing. The families reported occasional febrile seizures in infancy for each of the deaf children, but these did not persist into adolescence. These affected children were identified with autosomal recessive GOSR2 variant, c.1A > C, p.Met1Leu. This variant appeared once in the gnomAD database, as a heterozygote, and not in any of ~2000 in-house controls of Palestinian ancestry. All previously reported cases with biallelic GOSR2 variants had normal hearing and hence the differences in translation efficiency due to the effect of this variant may be responsible for this hearing loss phenotype (PMID:37074134). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1103 | PSMC3 | Zornitza Stark edited their review of gene: PSMC3: Added comment: PMID:37256937 - 23 individuals with neurodevelopmental disorder was identified with 15 different de novo missense variants. Apart from one child (patient 2), all others had developmental delay characterised by speech delay (19/19) alone or with intellectual disability (16/18) and motor delay (15/19). In addition, structural modeling as well as proteomic and transcriptomic analyses of T cells derived from patients with PSMC3 variants implicated the PSMC3 variants in proteasome dysfunction through disruption of substrate translocation, induction of proteotoxic stress, and alterations in proteins controlling developmental and innate immune program.; Changed rating: GREEN; Changed publications: 32500975, 37256937; Changed phenotypes: neurodevelopmental disorder, MONDO:0700092, PSMC3-related, Deafness, cataract, impaired intellectual development, and polyneuropathy, MIM#619354; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1071 | SMARCA4 |
Paul De Fazio changed review comment from: Additional phenotype reported: A single missense variant E1610K (M_001128849.3) was reported in 7 affected members of a family with progressive hearing loss due to otosclerosis and no other clinical features. Variant is absent from gnomAD. Note that unaffected members of the family were not tested. A mouse CRISPR model with the orthologous variant had a similar phenotype.; to: Additional phenotype reported: A single missense variant E1610K (M_001128849.3) was reported in 7 affected members of a family with progressive hearing loss due to otosclerosis and no other clinical features. Variant is absent from gnomAD. Note that unaffected members of the family were not tested - some obligate carriers were apparently unaffected, reflecting incomplete penetrance. A mouse CRISPR model with the orthologous variant had a similar phenotype. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1071 | PHF5A |
Daniel Flanagan gene: PHF5A was added gene: PHF5A was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: PHF5A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PHF5A were set to PMID: 37422718 Phenotypes for gene: PHF5A were set to Neurodevelopmental disorder (MONDO#0700092), PHF5A-related Review for gene: PHF5A was set to GREEN Added comment: Nine subjects with congenital malformations, including hypospadias, growth abnormalities, and developmental delay who had de novo PHF5A variants. Prenatally, six subjects had intrauterine growth retardation. All subjects had motor and speech delay and developmental delay. Congenital abnormalities comprised hypospadias in three of four male subjects, and heart defects (3/9), inguinal hernia (3/9), and sacral dimple (3/9). Six of the nine subjects had short stature. Craniofacial dysmorphism is variable in the nine subjects, high forehead and preauricular skin tag(s) in five subjects. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1064 | STAB1 |
Chern Lim gene: STAB1 was added gene: STAB1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: STAB1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: STAB1 were set to 37490907; 28052375 Phenotypes for gene: STAB1 were set to Iron metabolism disease (MONDO:0002279), STAB1-related Review for gene: STAB1 was set to GREEN gene: STAB1 was marked as current diagnostic Added comment: PMID: 37490907 - Biallelic variants identified in 10 individuals from 7 families with unexplained hyperferritinaemia without iron overload. All of them were in good health and had no dysmorphologies, psycho-motor development abnormalities, hearing or vision disorders, or other pathologies. - Homozygous/compound heterozygous variants: missense, frameshift, stopgain, inframe del of 3 AAs, one synonymous. - Samples from three of the patients from two families showed no immunoreactivity with anti-stabilin-1 compared to control liver where high signal was detected in the liver sinusoids (immunohistochemistry analysis). - Patients’ peripheral monocytes and monocyte-derived macrophages showed very little expression of stabilin-1 on CD14+ monocytes and macrophages compared to control subjects (flow cytometry analysis). - These families have also been published in PMID: 28052375. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1062 | NAA30 |
Sarah Pantaleo gene: NAA30 was added gene: NAA30 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NAA30 was set to Unknown Publications for gene: NAA30 were set to PMID: 37387332 Penetrance for gene: NAA30 were set to unknown Added comment: Report a de novo heterozygous NAA30 nonsense variant c.244C>T, p.(Gln82*) in a 5yo boy with GDD, ASD, hypotonia, seizures, tracheal cleft and recurrent respiratory infections. Seizures resolved after two weeks of life. Family history of ASD in older sister. Epilepsy in mother, childhood onset. Biochemical studies performed to assess the functional impact of the premature stop codon on catalytic activity. The variant was found to completely disrupt N-terminal acetyltransferase activity using an in vitro acetylation assay. Variant de novo, “in a gene sensitive to loss of heterozygosity”. Limitation of study - have not established whether this gene variant acts in a dominant or recessive manner. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1060 | SENP7 |
Elena Savva gene: SENP7 was added gene: SENP7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SENP7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SENP7 were set to PMID: 37460201 Phenotypes for gene: SENP7 were set to Arthrogryposis multiplex congenita, MONDO:0015168, SENP7-related Review for gene: SENP7 was set to AMBER Added comment: PMID: 37460201 - 1 family (4 affecteds, sibling pair and 1st cousin) with fatal arthrogryposis multiplex congenita, early respiratory failure and neutropenia. Fetus could not be tested, so 3 confirmed genetically. - Homozygous for a PTC, decreased mRNA from one sample supports an NMD outcome. - Additional studies performed supporting downstream proteins expression being affected - Neutropenia observed in 2/3 patients Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1054 | STX5 |
Ain Roesley gene: STX5 was added gene: STX5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: STX5 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: STX5 were set to congenital disorder of glycosylation MONDO#0015286, STX5-related Review for gene: STX5 was set to AMBER gene: STX5 was marked as current diagnostic Added comment: 1x family with 3x deceased shortly after death + 3x spontaneous abortions + 2x abortions due to abnormal fatal ultrasound (US). Hom for NM_003164.4:c.163 A > G p.(Met55Val), which results in complete loss of short isoform (which uses Met55 as the start) phenotype: short long bones on US, dysmorphism, skeletal dysplasia, profound hypotonia, hepatomegaly elevated cholesterol. Post-natally they died of progressive liver failure with cholestasis and hyperinsulinemic hypoglycemias Primary human dermal fibroblasts isolated from these patients show defective glycosylation, altered Golgi morphology as measured by electron microscopy, mislocalization of glycosyltransferases, and compromised ER-Golgi trafficking Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1032 | SLC20A1 | Zornitza Stark Phenotypes for gene: SLC20A1 were changed from Bladder-Exstrophy-Epispadias Complex (BEEC) to Bladder-Exstrophy-Epispadias Complex (BEEC), MONDO:0017919, SLC20A1-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1003 | INTS13 |
Chirag Patel gene: INTS13 was added gene: INTS13 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: INTS13 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: INTS13 were set to PMID: 36229431 Phenotypes for gene: INTS13 were set to Oral-facial-digital syndrome Review for gene: INTS13 was set to GREEN gene: INTS13 was marked as current diagnostic Added comment: 2 families with 4 affected individuals with Oral-facial-digital (OFD) phenotype. Homozygosity mapping and WES found 2 homozygous variants in INTS13 gene. This is a subunit of the Integrator complex, which associates with RNA Polymerase II and cleaves nascent RNA to modulate gene expression. Variants segregated with disease. Depletion of INTS13 disrupts ciliogenesis in human cultured cells and causes dysregulation of a broad collection of ciliary genes. Knockdown in Xenopus embryos leads to motile cilia anomalies. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1002 | PTCH1 | Chirag Patel reviewed gene: PTCH1: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Bladder exstrophy and epispadias complex (BEEC); Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1001 | DCAF15 |
Chirag Patel gene: DCAF15 was added gene: DCAF15 was added to Mendeliome. Sources: Other Mode of inheritance for gene: DCAF15 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: DCAF15 were set to Cornelia de Lange syndrome Review for gene: DCAF15 was set to AMBER Added comment: ESHG 2023: 3 unrelated cases with CdLS (1 x TOP with MCA, 1 x death @20mths, 1 x living child) Features suggestive of CdLS - DD, microcephaly, CHD, dysmorphism, visual/hearing impairment. WES identified recurrent de novo variant (p.Ser470Phe) in DCAF15 gene. This mediates ubiquitination and degradation of target proteins, and interacts with cohesin complex members (SMC1/SMC3). Protein analysis from individuals showed increased accumulation of ubiquitination-modified proteins and SM3 (GOF mechanism). EpiSign analysis showed same DNA methylation pattern as other CdLS cases/genes. Zebrafish model showed reduced body length, reduced head size, reduced oligodendrocytes, heart defect, aberrant motor neurons, and abnormal response to visual/auditory stimuli. Sources: Other |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.956 | RAB34 |
Sarah Pantaleo gene: RAB34 was added gene: RAB34 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB34 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RAB34 were set to PMID: 37384395 Phenotypes for gene: RAB34 were set to Clefting; corpus callosum; short bones; hypertelorism; polydactyly; cardiac defects; anorectal anomalies Penetrance for gene: RAB34 were set to Complete Review for gene: RAB34 was set to GREEN Added comment: Oral-facial-digital syndromes (OFDS) are a group of clinically and genetically heterogenous disorders characterised by defects in the development of the face and oral cavity along with digit anomalies. Pathogenic variants in >20 genes encoding ciliary proteins have been found to cause OFDS. Identified by WES biallelic missense variants in a novel disease-causing ciliary gene RAB34 in four individuals from three unrelated families (aided by GeneMatcher). Affected individuals presented a novel form of OFDS accompanied by cardiac, cerebral, skeletal (eg. Shortening of long bones), and anorectal defects. RAB34 encodes a member of the Lab GTPase superfamily and was recently identified as a key mediator of ciliary membrane formation. Protein products of pathogenic variants clustered near the RAB34 C-terminus exhibit a strong loss of function. Onset is prenatal (multiple developmental defects including short femur, polydactyly, heart malformations, kidney malformations, brain malformations), resulting in medical termination for three probands. In the fourth, the only one alive at birth, proband born at 39+5 weeks, normal growth parameters after pregnancy with polyhydramnios, corpus callosum agenesis and polydactyly. Respiratory distress at birth. All four probands presented typical features of ciliopathy disorders, overlapping with oral, facial and digital abnormalities. All with homozygous missense variants. All absent in gnomAD (in homozygous state). Sanger sequencing confirmed mode of inheritance. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.956 | RPH3A |
Lucy Spencer gene: RPH3A was added gene: RPH3A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RPH3A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RPH3A were set to 37403762; 29441694 Phenotypes for gene: RPH3A were set to Neurodevelopmental disorder (MONDO#0700092), RPH3A-related Review for gene: RPH3A was set to GREEN Added comment: PMID: 37403762- 6 patients with RPH3A variant. All 6 have ID, 4 have epilepsy, 2 with obesity, 1 with dysmorphic features. All 6 have missense variants, 3 shown to be de novo, the other 3 parents were not available for testing. I patient also had language and motor impairment, breathing issues and mixed hypo/hypertonia- he also had variants in CUL4B, PRKAG2, SCN4A, none of these genes cause seizures (which he had). Patch clamp studies on 2 of the missense showed they increased either the number of NMDA receptors on neuron membrane surface or increased their conductance. Study suggests that the variants interrupt the normal role of RPH3A activity at the synaptic NMDAR complex which is needed for the induction of synaptic plasticity and NMDAR-dependant behaviours Previously this gene was reported in PMID: 29441694- 1 girl with learning disabilities, tremors, ataxia, hyperglycemia and muscle fatigability. Chet for 2 RPH3A missense. Functional analysis showed strong and marginal impairment of protein binding for each variant. this is the only biallelic report currently. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.943 | SPTSSA | Zornitza Stark Phenotypes for gene: SPTSSA were changed from complex hereditary spastic paraplegia, MONDO:0015150 to Spastic paraplegia 90B, autosomal recessive , MIM# 620417; Spastic paraplegia 90A, autosomal dominant, MIM# 620416 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.911 | TAPT1 | Paul De Fazio reviewed gene: TAPT1: Rating: AMBER; Mode of pathogenicity: None; Publications: 36697720, 36652330; Phenotypes: Osteochondrodysplasia, complex lethal, Symoens-Barnes-Gistelinck type (MIM#616897); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.903 | MRPL50 |
Anna Ritchie gene: MRPL50 was added gene: MRPL50 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MRPL50 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MRPL50 were set to PMID: 37148394 Phenotypes for gene: MRPL50 were set to Mitochondrial disease, MONDO: 004470, MRPL50-related Added comment: A homozygous missense variant (c.335T>A; p.Val112Asp) shared by twin sisters presenting with premature ovarian insufficiency, bilateral high-frequency sensorineural hearing loss, kidney and heart dysfunction. Quantitative proteomics data demonstrated a significant reduction in abundance of MRPL50 protein when compared with controls. Patient fibroblasts have a mild but significant decrease in the abundance of mitochondrial complex I. This data supports a biochemical phenotype associated with MRPL50 variants. Knockdown/knockout of mRpL50 in Drosophila, resulted abnormal ovarian development. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.885 | NDUFA13 | Lucy Spencer reviewed gene: NDUFA13: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Mitochondrial complex I deficiency, nuclear type 28, MIM# 618249; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.873 | ATP5O | Zornitza Stark Phenotypes for gene: ATP5O were changed from mitochondrial disease, ATP5F1E-related MONDO:0044970 to Mitochondrial complex V (ATP synthase) deficiency, nuclear type 7, MIM# 620359 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.870 | ATP5O | Zornitza Stark reviewed gene: ATP5O: Rating: GREEN; Mode of pathogenicity: None; Publications: 35621276; Phenotypes: Mitochondrial complex V (ATP synthase) deficiency, nuclear type 7, MIM# 620359; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.837 | DNAH7 |
Chern Lim gene: DNAH7 was added gene: DNAH7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DNAH7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNAH7 were set to 34476482; 35543642 Phenotypes for gene: DNAH7 were set to non-syndromic male infertility due to sperm motility disorder (MONDO#0017173), DNAH7-related Review for gene: DNAH7 was set to GREEN gene: DNAH7 was marked as current diagnostic Added comment: PMID: 34476482 (Wei et al 2021): - Hom/chet missense DNAH7 variants in three unrelated infertile patients with idiopathic asthenozoospermia, presented with primary ciliary dyskinesia (PCD)-associated symptoms. - Functional studies showed expression of DNAH7 in the spermatozoa from the DNAH7-defective patients was significantly decreased. PMID: 35543642 (Gao et al 2022): - One proband with idiopathic asthenozoospermia, presented a history of PCD-like symptoms. Hom frameshift variant predicted to cause NMD, both parents are heterozygous. - Immunofluorescent staining showed DNAH7 signal significantly decreased or was even completely absent in the sperm from the investigated patient. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.803 | CAMSAP1 | Zornitza Stark Phenotypes for gene: CAMSAP1 were changed from lissencephaly spectrum disorders (MONDO:0018838), CAMSAP1-related to Cortical dysplasia, complex, with other brain malformations 12, MIM# 620316 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.802 | CAMSAP1 | Zornitza Stark reviewed gene: CAMSAP1: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Cortical dysplasia, complex, with other brain malformations 12, MIM# 620316; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.734 | HECTD4 | Zornitza Stark Phenotypes for gene: HECTD4 were changed from Neurodevelopmental disorder overlapping Angelman syndrome, no OMIM# to Neurodevelopmental disorder with seizures, spasticity, and complete or partial agenesis of the corpus callosum, MIM# 620250 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.733 | HECTD4 | Zornitza Stark reviewed gene: HECTD4: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Neurodevelopmental disorder with seizures, spasticity, and complete or partial agenesis of the corpus callosum, MIM# 620250; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.732 | SPTLC1 | Zornitza Stark Phenotypes for gene: SPTLC1 were changed from Neuropathy, hereditary sensory and autonomic, type IA, MIM# 162400; Serine palmitoyl transferase deficiency (Disorders of complex lipid synthesis) to Juvenile amyotrophic lateral sclerosis-27, MIM#620285; Neuropathy, hereditary sensory and autonomic, type IA, MIM# 162400; Serine palmitoyl transferase deficiency (Disorders of complex lipid synthesis) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.731 | SPTLC1 | Zornitza Stark edited their review of gene: SPTLC1: Changed phenotypes: Juvenile amyotrophic lateral sclerosis-27, MIM#620285, Neuropathy, hereditary sensory and autonomic, type IA, MIM# 162400, Serine palmitoyl transferase deficiency (Disorders of complex lipid synthesis) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.717 | RBSN |
Zornitza Stark gene: RBSN was added gene: RBSN was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RBSN was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RBSN were set to 25233840; 29784638; 35652444 Phenotypes for gene: RBSN were set to intellectual disability, MONDO:0001071, RBSN-related Review for gene: RBSN was set to GREEN Added comment: Four unrelated families reported, consistent feature is ID. PMID:25233840 reported a 6.5 year old female patient with a homozygous missense variant c.1273G > A (p.Gly425Arg) and her clinical presentation included intractable seizures, developmental delay, microcephaly, dysostosis, osteopenia, craniofacial dysmorphism, macrocytosis and megaloblastoid erythropoiesis. PMID:29784638 reported three siblings with homozygous variant c.289G>C (p.Gly97Arg) in RBSN. The proband presented global developmental delay, had complete 46,XY male-to-female sex reversal and died at age 20 months after multiple infections. The other 2 affected siblings underwent unrelated-donor bone marrow or stem cell transplantation at 8 and 6.5 months of age, respectively. Both have severe intellectual disability and are nonambulatory and nonverbal. PMID:35652444 reported two unrelated families (three siblings from a family of Iranian descent identified with homozygous variant c.547G>A (p.Gly183Arg) and four members from a family of indigenous Cree descent identified with homozygous variant c.538C>G (p.Arg180Gly)) with overlapping phenotypes including developmental delay, intellectual disability, distal motor axonal neuropathy and facial dysmorphism. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.711 | ATP5B |
Zornitza Stark changed review comment from: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data. Note also PMID 36239646 reporting de novo variant in identical twins with hypermetabolism. Sources: Literature; to: PMID 36860166: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data. Note also PMID 36239646 reporting de novo variant in identical twins with hypermetabolism. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.711 | ATP5B |
Zornitza Stark changed review comment from: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data. Sources: Literature; to: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data. Note also PMID 36239646 reporting de novo variant in identical twins with hypermetabolism. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.711 | EPHA10 |
Achchuthan Shanmugasundram changed review comment from: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies. PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation. Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype. This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype. Sources: Literature; to: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies. PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation. Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. Particularly, Eph overexpressed flies had a poorer performance compared to controls in negative geotaxis assay. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype. This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.711 | EPHA10 |
Achchuthan Shanmugasundram changed review comment from: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies. PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation. Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype. This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype. Sources: Literature; to: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies. PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation. Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype. This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.711 | EPHA10 |
Achchuthan Shanmugasundram gene: EPHA10 was added gene: EPHA10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EPHA10 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: EPHA10 were set to 36048850 Phenotypes for gene: EPHA10 were set to postlingual non-syndromic genetic hearing loss, MONDO:0016298 Mode of pathogenicity for gene: EPHA10 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments Review for gene: EPHA10 was set to RED Added comment: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies. PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation. Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype. This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.710 | ATP5B |
Zornitza Stark gene: ATP5B was added gene: ATP5B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATP5B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ATP5B were set to 36860166 Phenotypes for gene: ATP5B were set to Inherited dystonia, MONDO:0044807, ATP5B-related Review for gene: ATP5B was set to AMBER Added comment: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.688 | USMG5 |
Bryony Thompson gene: USMG5 was added gene: USMG5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: USMG5 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: USMG5 were set to 29917077; 30240627 Phenotypes for gene: USMG5 were set to Mitochondrial complex V (ATP synthase) deficiency, nuclear type 6 MIM#618683 Review for gene: USMG5 was set to AMBER Added comment: A homozygous splice site mutation in 4 patients from 3 unrelated families of Ashkenazi Jewish descent. Experimental analyses demonstrated that the splice variant leads to loss of protein expression and haplotype analysis suggested a founder effect. In situ cryo-ET analysis of the mitochondria of a homozygous affected case showed profound disturbances of mitochondrial crista ultrastructure. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.665 | LTV1 |
Achchuthan Shanmugasundram gene: LTV1 was added gene: LTV1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LTV1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LTV1 were set to 34999892 Phenotypes for gene: LTV1 were set to Inflammatory poikiloderma with hair abnormalities and acral keratoses, OMIM:620199 Review for gene: LTV1 was set to AMBER Added comment: Comment on classification of gene: This gene should be rated amber as it has been implicated in inflammatory poikiloderma with hair abnormalities and acral keratoses as identified from two unrelated families harbouring the same biallelic variant and supported by functional studies. PMID:34999892 reported four UK women of South Asian origin (three Pakistani sisters and an unrelated Indian woman) identified with homozygous variant c.503A>G, (p.Asn168Ser) and presented with poikiloderma, hair abnormalities, and acral keratoses, which the authors named as inflammatory poikiloderma with hair abnormalities and acral keratoses (IPHAK). Both in silico modelling and splicing assays from a patient sample showed that this variant is responsible for splicing defects and defects in LTV1 alter the export of nascent ribosomal subunits to the cytoplasm in yeast. This gene has already been associated with relevant phenotype (MIM #620199) in OMIM, but not in Gene2Phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.665 | WNT11 |
Achchuthan Shanmugasundram gene: WNT11 was added gene: WNT11 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: WNT11 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: WNT11 were set to 34875064 Phenotypes for gene: WNT11 were set to osteoporosis, MONDO:0005298; osteoarthritis, MONDO:0005178; recurrent fractures Review for gene: WNT11 was set to GREEN Added comment: Comment on gene classification: The rating of this gene can be added as green as this gene has been implicated in early-onset osteoporosis from three unrelated cases and was supported by evidence from functional studies. All three patients harboured heterozygous variants in WNT11 gene. Three unrelated cases are reported in PMID: 34875064. A four year-old boy harbouring de novo heterozygous loss-of-function variant c.677_678dupGG (p.Leu227Glyfs*22) was reported with low BMD, osteopenia and several fractures. A 51 year-old woman and her 69 year-old mother were identified with a heterozygous missense variant c.217G>A (p.Ala73Thr). The woman was reported with bone fragility, several fractures, osteoarthritis and osteoporosis, while her mother also had several osteoporotic fractures. A 61 year-old woman that was reported with lumbar spine osteoarthritis had several fractures since 55 years of age was identified with a heterozygous missense variant c.865G>A (p.Val289Met). This was also supported by results from functional studies, where cell lines with the loss-of-function variant generated by CRISPR-Cas9 showed reduced cell proliferation and osteoblast differentiation in comparison to wild-type. The expression of genes in the Wnt canonical and non-canonical pathways was inhibited in these mutant cells. This gene has not yet been reported with any phenotypes either in OMIM or in G2P. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.654 | KLHL24 | Zornitza Stark Phenotypes for gene: KLHL24 were changed from Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy; Hypertrophic cardiomyopathy to Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy; Cardiomyopathy, familial hypertrophic, 29, with polyglucosan bodies, MIM# 620236 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.648 | SPTSSA |
Seb Lunke gene: SPTSSA was added gene: SPTSSA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SPTSSA was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: SPTSSA were set to 36718090 Phenotypes for gene: SPTSSA were set to complex hereditary spastic paraplegia, MONDO:0015150 Review for gene: SPTSSA was set to AMBER Added comment: Three unrelated individuals with common neurological features of developmental delay, progressive motor impairment, progressive lower extremity spasticity, and epileptiform activity or seizures. Other additional features varied. Two of the individuals had the same de-novo missense, Thr51Ile, while the third was homozygous for a late truncating variant, Gln58AlafsTer10. The patient with the hom variant was described as less severe. Functional studies in fibroblasts showed dysregulation of the sphingolipid (SL) synthesis pathway, showing that both variants impair ORMDL regulation of the pathway leading to various levels of increased SL. Over expression of human SPTSSA was shown to lead to motor development in flies, rescued by expression of ORMDL for WT SPTSSA but not mutant SPTSSA. The de-novo missense were shown to impact regulation more than the hom truncation, while the truncated region was shown to previously to be important for ORMDL regulation. Mice with a hom KO of the functional equivalent sptssb had early onset ataxia and died prematurely, with evidence of axonic degeneration. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.630 | TRU-TCA1-1 |
Paul De Fazio gene: TRU-TCA1-1 was added gene: TRU-TCA1-1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TRU-TCA1-1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TRU-TCA1-1 were set to 26854926; 34956927 Phenotypes for gene: TRU-TCA1-1 were set to Hyperthyroidism MONDO:0004425 Review for gene: TRU-TCA1-1 was set to AMBER gene: TRU-TCA1-1 was marked as current diagnostic Added comment: PMID 26854926: male 8 year old proband investigated for abdominal pain, fatigue, muscle weakness, and thyroid dysfunction (raised T4, normal T3, raised reverse T3) suggestive of impaired deiodinase activity in combination with low plasma selenium levels. Homozygosity mapping led to identification of a a single nucleotide change, C65G, in TRU-TCA1-1, a tRNA in the selenocysteine incorporation pathway. This mutation resulted in reduction in expression of stress-related selenoproteins. A methylribosylation defect at uridine 34 of mutant tRNA observed in patient cells was restored by cellular complementation with normal tRNA. PMID 34956927: a 10 year old originally investigated for Hashimoto's disease was found to be homozygous for the same C65G variant identified in the previous paper, inherited from the father in what was concluded to be paternal isodisomy. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.576 | TRA2B |
Elena Savva gene: TRA2B was added gene: TRA2B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TRA2B was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: TRA2B were set to PMID: 36549593 Phenotypes for gene: TRA2B were set to Neurodevelopmental disorder, TRA2B-related (MONDO#0700092) Review for gene: TRA2B was set to GREEN Added comment: PMID: 36549593 - 12 individuals with ID and dev delay. Additional features include infantile spams 6/12, hypotonia 12/12, dilated brain ventricles 6/12, microcephaly 5/12 - All variants result in the loss of 1/2 transcripts (start-losses or PTCs upstream of a second translation start position). Shorter transcript expression is increased, longer transcript expression is decreased. - Apparently het mice K/O are normal, but complete K/O cannot develop embryonically. - DN mechanism suggested Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.552 | KIF26A | Zornitza Stark Phenotypes for gene: KIF26A were changed from Cerebral malformation MONDO:0016054, KIF26-related to Cortical dysplasia, complex, with other brain malformations 11, MIM# 620156 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.551 | KIF26A | Zornitza Stark edited their review of gene: KIF26A: Changed phenotypes: Cortical dysplasia, complex, with other brain malformations 11, MIM# 620156 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.526 | TIMMDC1 | Paul De Fazio reviewed gene: TIMMDC1: Rating: GREEN; Mode of pathogenicity: None; Publications: 36349561, 33278652; Phenotypes: Mitochondrial complex I deficiency, nuclear type 31 MIM#618251; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.507 | GABRA3 |
Sarah Pantaleo gene: GABRA3 was added gene: GABRA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GABRA3 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) Publications for gene: GABRA3 were set to PMID: 29053855 Phenotypes for gene: GABRA3 were set to Epilepsy, intellectual disability, dysmorphic features, Penetrance for gene: GABRA3 were set to Incomplete Review for gene: GABRA3 was set to GREEN Added comment: Six variants in GABRA3 encoding the alpha3-subunit of the GABA(A) receptor. Five missense variants and one micro duplication were detected in four families and two sporadic cases presenting with a range of epileptic seizure types, a varying degree of intellectual disability and developmental delay, sometimes with dysmorphic features or nystagmus. The variants co-segregated mostly but not completely with the phenotype in the families, indicating in some cases incomplete penetrance, involvement of other genes, or presence of phenocopies. Overall, males were more severely affected and there were three asymptomatic female mutation carriers compared to only one male without a clinical phenotype. Mechanism suggested - three detected missense variants are localised in the extracellular GABA-binding NH2-terminus, one in the M2-M3 linker and one in the M4 transmembrane segment of the alpha3-subunit. Functional studies in Xenopus leaves oocytes revealed a variable but significant reduction of GABA-evoked anion currents for all mutants compared to wild-type receptors. The degree of current reduction correlated partially with the phenotype. Results reveal that rare loss-of-function variants in GABRA3 increase the risk for a varying combination of epilepsy, intellectual disability/developmental delay and dysmorphic features, presenting in some pedigrees with an X-linked inheritance pattern. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.504 | UQCRH |
Chern Lim gene: UQCRH was added gene: UQCRH was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UQCRH was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UQCRH were set to 34750991 Phenotypes for gene: UQCRH were set to Mitochondrial complex III deficiency, nuclear type 11, MIM#620137 Review for gene: UQCRH was set to AMBER gene: UQCRH was marked as current diagnostic Added comment: PMID: 34750991: - Two affected cousins, presented with recurrent episodes of severe lactic acidosis, hyperammonaemia, hypoglycaemia and encephalopathy. - Both have a 2.2 kb homozygous deletion of exons 2 and 3 of UQCRH, predicted to culminate in an in-frame deletion exons 2 and 3 of the four-exon UQCRH gene, resulting in a shortened product. - Mouse model with the equivalent homozygous Uqcrh deletion (Uqcrh-/-) also presented with lactic acidosis and hyperammonaemia, but had a more severe, non-episodic phenotype, resulting in failure to thrive and early death. - Patient fibroblasts and Uqcrh-/- mouse tissues showed a CIII defect. - Expression of wild-type UQCRH in patient fibroblasts ameliorates the CIII defect. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.483 | NDUFB7 | Zornitza Stark Phenotypes for gene: NDUFB7 were changed from Congenital lactic acidosis; hypertrophic cardiomyopathy to Mitochondrial complex I deficiency nuclear type 39 (MC1DN39), MIM#620135; Congenital lactic acidosis; hypertrophic cardiomyopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.482 | NDUFB7 | Zornitza Stark reviewed gene: NDUFB7: Rating: AMBER; Mode of pathogenicity: None; Publications: ; Phenotypes: Mitochondrial complex I deficiency nuclear type 39 (MC1DN39), MIM#620135; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.477 | CLEC3B |
Chirag Patel gene: CLEC3B was added gene: CLEC3B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CLEC3B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CLEC3B were set to PMID: 35331648 Phenotypes for gene: CLEC3B were set to Macular dystrophy, retinal, 4, OMIM #619977 Review for gene: CLEC3B was set to GREEN Added comment: 12 affected individuals from 5 multigenerational Japanese families in a small village in Miyazaki diagnosed with autosomal dominant maculoretinopathy. WES identified a pathogenic variant (p.Ala180Asp) in CLEC3B, which encodes tetranectin, a plasminogen kringle-4 binding protein. Variant cosegregated with the ocular phenotype. Mice that received subretinal injections with CLEC3B variant displayed multiple subretinal hyperreflective deposits, reduced retinal thickness, and decreased electroretinographic responses. The optokinetic tracking response indicated that spatial frequency was significantly lower (P < .05), implying impaired visual function in the mice. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.449 | PI4K2A | Zornitza Stark Phenotypes for gene: PI4K2A were changed from Cutis laxa, intellectual disability, movement disorder to complex neurodevelopmental disorder with motor features, PI4K2A-related, MONDO:0100516; Cutis laxa, intellectual disability, movement disorder | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.444 | PI4K2A | Seb Lunke reviewed gene: PI4K2A: Rating: GREEN; Mode of pathogenicity: None; Publications: 30564627, 35880319, 19581584; Phenotypes: complex neurodevelopmental disorder with motor features, PI4K2A-related, MONDO:0100516; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.442 | MYCBP2 |
Suliman Khan gene: MYCBP2 was added gene: MYCBP2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MYCBP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MYCBP2 were set to PMID: 36200388 Phenotypes for gene: MYCBP2 were set to Neurodevelopmental disorder, MONDO:0700092, MYCBP2-related; corpus callosum abnormalities Penetrance for gene: MYCBP2 were set to Complete Review for gene: MYCBP2 was set to GREEN Added comment: PMID: 36200388 reported eight patients with neurodevelopmental disorder including corpus callosum abnormalities, developmental delay, intellectual disability, epilepsy, and autistic features. Each patient harbored a de novo LOF variant in MYCBP2 gene. Functional study supported a direct link between MYCBP2 and neurodevelopmental spectrum disorder specifically corpus callosum defects. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.437 | FOXI3 |
Paul De Fazio gene: FOXI3 was added gene: FOXI3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FOXI3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: FOXI3 were set to 36260083 Phenotypes for gene: FOXI3 were set to Dysostosis with predominant craniofacial involvement (MONDO:0800085) Penetrance for gene: FOXI3 were set to Incomplete Review for gene: FOXI3 was set to GREEN gene: FOXI3 was marked as current diagnostic Added comment: Ten affected individuals from 4 families reported with monoallelic variants, 2 with missense variants affecting the nuclear localisation sequence and 2 with frameshift variants. The missense variants were associated with isolated microtia with aural atresia and affected subcellular localisation of the protein, while the frameshift variants were associated with microtia and mandubular hypoplasia, suggesting dosage sensitivity. Rated green but CAUTION for incomplete penetrance. 3 of the 4 families had unaffected carriers. Family 1 in particular had 25 genotyped individuals, of which 15 were carriers, of which 5 were affected. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.435 | CBFB |
Ain Roesley gene: CBFB was added gene: CBFB was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CBFB was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CBFB were set to 36241386 Phenotypes for gene: CBFB were set to cleidocranial dysplasia (MONDO#0007340), CBFB-related Penetrance for gene: CBFB were set to Complete Review for gene: CBFB was set to GREEN gene: CBFB was marked as current diagnostic Added comment: 5 families with 8 individuals, including 2 de novos and 1 intragenic exon 4 deletion In 1 family, the mother did not report skeletal concerns but had dental abnormalities during childhood Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.342 | ACVR1 |
Zornitza Stark changed review comment from: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner. Multiple unrelated families reported. The R206H variant is recurrent. Note variants in this gene are also associated with congenital heart disease, PMID 29089047.; to: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner. Multiple unrelated families reported. The R206H variant is recurrent. Clinical trial with palovarotene Note variants in this gene are also associated with congenital heart disease, PMID 29089047. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.332 | PTPA |
Zornitza Stark gene: PTPA was added gene: PTPA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PTPA was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PTPA were set to 36073231 Phenotypes for gene: PTPA were set to Intellectual disability, MONDO: 36073231, PTPA-related Review for gene: PTPA was set to AMBER Added comment: Biallelic PTPA pathogenic variants lead to a form of ID with later-onset parkinsonism based on 4 individuals from 2 families in the literature. Affected individuals were homozygous for missense variants demonstrated to result to reduced mRNA and protein levels as well as PP2A complex activation. Drosophila studies support an age-dependent locomotor dysfunction. Variants in other PP2A-complex-related genes also lead to NDDs. Summary provided below. There is currently no associated phenotype in OMIM, G2P, PanelApp UK or SysID. Consider inclusion in relevant panels (ID, Parkinsonism/movement disorders, etc) with amber rating pending further reports. ------ Fevga, Tesson et al (2022 - PMID: 36073231) describe the features of 4 individuals, from 2 unrelated families, with biallelic pathogenic PTPA variants. These presented with normal or delayed early milestones, learning disability and ID (mild to moderate) followed by progressive signs of parkinsonism (at the age of 11 yrs in 2 sibs, 15 yrs in another individual). Motor symptoms were responsive to levodopa and later to deep brain stimulation. Linkage analysis in one consanguineous family followed by exome revealed homozygosity for a missense PTPA variant (NM_178001:c.893T>G/p.Met298Arg). Exome sequencing in affected subjects from the 2nd family revealed homozygosity for a further missense variant (c.512C>A/p.Ala171Asp). There were no other candidate variants for the phenotype following parental / segregation studies. Role of the gene: As the authors discuss, PTPA (or PPP2R4) is ubiquitously expressed in all tissues incl. brain and encodes a phosphotyrosyl phosphatase activator of the dimeric form of protein phosphatase-2A (PP2A). PP2A in turn, is the major Ser/Thr phosphatase in brain targeting a large number of proteins involved in diverse functions. Activation of PP2A is dependent on its methylation, which is negatively regulated by the PP2A-specific methylesterase (PME-1). By binding to PME-1, PTPA counteracts the negative influence of the former on PP2A. Pathogenic variants in genes encoding subunits/regulators of the PP2A complex (e.g. PPP2R1A or PPP2CA) are associated with neurodevelopmental disorders. Variant studies: Upon overexpression of wt and both variants in a HEK-293 cell line the authors demonstrated that both variants resulted in significantly reduced mRNA and protein levels (which for Ala171Asp were attributed to increased proteasomal degradation). Both variants were shown to result in impaired PP2A complex activation compared to wt. Drosophila / animal models: Pan-neuronal RNAi-mediated knockdown of ptpa in Drosophila resulted in an age-dependent locomotor dysfunction, reversible with L-DOPA treatment. Previous studies in mice suggest cognitive/electrophysiological impairments upon downregulation of PP2A activity in transgenic mice. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.325 | MYH8 | Ain Roesley reviewed gene: MYH8: Rating: RED; Mode of pathogenicity: None; Publications: 15590965, 17041932, 15282353; Phenotypes: Carney complex variant MIM#60883; Mode of inheritance: None; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.283 | LGI3 |
Melanie Marty gene: LGI3 was added gene: LGI3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LGI3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LGI3 were set to PMID: 35948005 Phenotypes for gene: LGI3 were set to Global developmental delay; Intellectual disability; Distal deformities; Diminished reflexes; Facial myokymia; Hyporeflexia/areflexi Review for gene: LGI3 was set to GREEN Added comment: Sixteen individuals from eight unrelated families with loss-of-function (LoF) bi-allelic variants in LGI3. Lgi3-null mice showed reduced and mis-local-ized Kv1 channel complexes in myelinated peripheral axons. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.279 | BUD13 |
Alison Yeung gene: BUD13 was added gene: BUD13 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BUD13 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BUD13 were set to 35670808 Phenotypes for gene: BUD13 were set to Lipodystrophy, MONDO:0006573 Review for gene: BUD13 was set to AMBER Added comment: 5 individuals with a lipodystrophy phenotype with a typical facial appearance, corneal clouding, achalasia, progressive hearing loss, and variable severity. Although 3 individuals showed stunted growth, intellectual disability, and died within the first decade of life, 2 are adults with normal intellectual development. All individuals harbored an identical homozygous nonsense variant affecting the retention and splicing complex component BUD13. Individuals from only two Algerian families. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.259 | NPNT |
Chirag Patel gene: NPNT was added gene: NPNT was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NPNT was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NPNT were set to PMID: 35246978, 34049960, 17537792 Phenotypes for gene: NPNT were set to Renal agenesis, no OMIM # Review for gene: NPNT was set to GREEN Added comment: 3 consanguineous families with multiple affecteds with bilateral renal agenesis. Whole-exome sequencing (WES)-based homozygosity mapping identified 2 homozygous truncating variants. Reverse transcription polymerase chain reaction data showing complete nonsense-mediated decay of the NPNT transcript. Loss of nephronectin (NPNT) is known to lead to failure of metanephric kidney development with resulting renal agenesis in murine models. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.196 | CWH43 |
Anna Le Fevre gene: CWH43 was added gene: CWH43 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CWH43 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CWH43 were set to PMID: 33459505; 34380733 Phenotypes for gene: CWH43 were set to normal pressure hydrocephalus Penetrance for gene: CWH43 were set to Incomplete Review for gene: CWH43 was set to AMBER Added comment: Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.134 | PIK3C2B |
Krithika Murali gene: PIK3C2B was added gene: PIK3C2B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PIK3C2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PIK3C2B were set to PMID:35786744 Phenotypes for gene: PIK3C2B were set to familial partial epilepsy - MONDO#0017704 Review for gene: PIK3C2B was set to AMBER Added comment: No OMIM gene disease association. Gozzelino et al.(2022) Brain - report enrichment of ultra-rare PIK3C2B variants in focal epilepsy cohorts, including one variant shown to be de novo (G1294Q). Segregation data not provided for all cases. The p.G1345S variant was inherited from an affected father. The p.K584* variant was inherited from an unaffected father suggesting incomplete penetrance. Functional studies supported a LoF mechanism and mouse model studies suggestive of mTORC1 pathway hyperactivation. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.114 | PNPT1 | Zornitza Stark edited their review of gene: PNPT1: Added comment: Three families reported with heterozygous variants and SCA25. Incomplete penetrance in one of the families. In the third family, the variant was inherited from an asymptomatic 80+ year old. Note bi-allelic variants in this gene cause a mitochondrial disorder. Exact mechanism through which mono-allelic variants cause SCA25 not elucidated: authors speculate abnormal accumulation of mitochondrial RNA with subsequent leakage into the cytosol that may trigger a type 1 interferon response leading to neuroinflammation with neuronal dysfunction or neuronal loss.; Changed rating: AMBER; Changed publications: 35411967; Changed phenotypes: Spinocerebellar ataxia 25, MIM# 608703; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.65 | RBFOX2 |
Chern Lim changed review comment from: - PMID: 26785492: Analysed CHD (1213 congenital heart disease trios) and control (autism spectrum disorder) trios for de novo mutations. Found RBFOX2 gene had significantly more damaging de novo variants than expected: 3 de novo LoF variants (eg. nonsense, frameshift, or canonical splice disruptions). All 3 probands have hypoplastic left heart syndrome (HLHS). No further patient-specific clinical or variant info were available. Same cohort later included in PMID: 32368696, listed 4 de novo variants in this gene, in patients with left ventricular outflow tract obstruction (LVOTO) or conotruncal defects (CTDs). - PMID: 27670201: RNA expression study showed the silenced allele harbours a nonsense RBFOX2 variant (Arg287*), CHD patient heart tissue sample, same patient published in PMID: 26785492. - PMID: 27485310: Functional studies using heart tissue sample from HLHS patient with NM_001031695.2:c.859C>T p.(Arg287*) showed subcellular mislocalisation, impacting its nuclear function in RNA splicing. - PMID: 25205790: De novo 111.3kb del chr22:36038076-36149338 (hg19) which includes APOL5,APOL6,RBFOX2, in a patient with HLHS. - PMID: 35137168: Rbfox2 conditional knockout mouse model recapitulated several molecular and phenotypic features of HLHS.; to: - PMID: 26785492: Analysed CHD (1213 congenital heart disease trios) and control (autism spectrum disorder) trios for de novo mutations. Found RBFOX2 gene had significantly more damaging de novo variants than expected: 3 de novo LoF variants (1x nonsense, 1x frameshift, 1x canonical splice variants). All 3 probands have hypoplastic left heart syndrome (HLHS) and no extra-cardiac features. Same cohort later included in PMID: 32368696, listed one additional de novo variant in this gene (missense variant) in a patient with conotruncal defects (CTDs). - PMID: 27670201: RNA expression study showed the silenced allele harbours a nonsense RBFOX2 variant (Arg287*), CHD patient heart tissue sample, same patient published in PMID: 26785492. - PMID: 27485310: Functional studies using heart tissue sample from HLHS patient with NM_001031695.2:c.859C>T p.(Arg287*) showed subcellular mislocalisation, impacting its nuclear function in RNA splicing. - PMID: 25205790: De novo 111.3kb del chr22:36038076-36149338 (hg19) which includes APOL5,APOL6,RBFOX2, in a patient with HLHS. - PMID: 35137168: Rbfox2 conditional knockout mouse model recapitulated several molecular and phenotypic features of HLHS. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.61 | SLC5A6 |
Zornitza Stark changed review comment from: Two unrelated families reported, functional data and some evidence of response to treatment. Sources: Literature; to: Complex neurodegenerative disorder: Two unrelated families reported, functional data and some evidence of response to treatment. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.28 | SPTAN1 | Zornitza Stark edited their review of gene: SPTAN1: Added comment: Leveille et al (2019) - 2 patients with HSP with biallelic missense SPTAN1 variants Previously described zebrafish, mouse, and rat animal models of SPTAN1 deficiency, all consistently showing axonal degeneration, fitting the pathological features of HSP in humans. Xie et al (2022) - 1 patient with complicated HSP and homozygous SPTAN1 mutation. Healthy parents and sister all carried the heterozygous mutation. Van de Vondel et al (2022) - 22 patients from 14 families with five novel heterozygous SPTAN1 variants. Presentations ranged from cerebellar ataxia, intellectual disability, epilepsy, and spastic paraplegia. A recurrent missense mutation (p.Arg19Trp) in 15 patients with spastic paraplegia. Through protein modeling they showed that mutated amino acids are located at crucial interlinking positions, interconnecting the three-helix bundle of a spectrin repeat.; Changed publications: 20493457, 22258530, 32811770, 35150594, 34526651, 31515523; Changed phenotypes: Developmental and epileptic encephalopathy 5, MIM# 613477, Hereditary spastic paraplegia MONDO:0019064, SPTAN1-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.7 | PROSER1 |
Zornitza Stark gene: PROSER1 was added gene: PROSER1 was added to Mendeliome. Sources: Expert Review founder tags were added to gene: PROSER1. Mode of inheritance for gene: PROSER1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PROSER1 were set to 35229282 Phenotypes for gene: PROSER1 were set to Syndromic disease MONDO:0002254, PROSER1-related Review for gene: PROSER1 was set to RED Added comment: 4 children from 3 related families with developmental delay, hypotonia, seizures, failure-to-thrive, strabismus, drooling, recurrent otitis media, hearing impairment, genitourinary malformations, and common facial features (arched eyebrows, prominent eyes, broad nasal bridge, low-hanging columella, open mouth, thick lower lip, protruding tongue, large low-set ears, and parietal bossing). WES revealed a homozygous frame-shift variant (p.Thr612Glnfs*22) in PROSER1. This encodes the proline and serine rich protein 1, part of the histone methyltransferases KMT2C/KMT2D complexes. PROSER1 stabilizes TET2, a member of the TET family of DNA demethylases which is involved in recruiting the enhancer-associated KMT2C/KMT2D complexes and mediating DNA demethylation, activating gene expression. Therefore, PROSER1 may play vital and potentially general roles in gene regulation. No functional assays and 3 related families, likely founder effect. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14660 | LYRM7 | Krithika Murali reviewed gene: LYRM7: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Mitochondrial complex III deficiency, nuclear type 8 - MIM#615838; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14651 | ATPAF2 | Krithika Murali reviewed gene: ATPAF2: Rating: RED; Mode of pathogenicity: None; Publications: 14757859; Phenotypes: ?Mitochondrial complex V (ATP synthase) deficiency, nuclear type 1 - MIM#604273; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14650 | ADD1 |
Chirag Patel gene: ADD1 was added gene: ADD1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ADD1 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: ADD1 were set to PMID: 34906466 Phenotypes for gene: ADD1 were set to Intellectual disability, corpus callosum dysgenesis, and ventriculomegaly; no OMIM # Review for gene: ADD1 was set to GREEN Added comment: 4 unrelated individuals affected by ID and/or complete or partial agenesis of corpus callosum, and enlarged lateral ventricles. WES found loss-of-function variants - 1 recessive missense variant and 3 de novo variants. The recessive variant is associated with ACC and enlarged lateral ventricles, and the de novo variants were associated with complete or partial agenesis of corpus callosum, mild ID and attention deficit. Human variants impair ADD1 protein expression and/or dimerization with ADD2. Add1 knockout mice recapitulate corpus callosum dysgenesis and ventriculomegaly phenotypes. Three adducin genes (ADD1, ADD2, and ADD3) encode cytoskeleton proteins that are critical for osmotic rigidity and cell shape. ADD1, ADD2, and ADD3 form heterodimers (ADD1/ADD2, ADD1/ADD3), which further form heterotetramers. Adducins interconnect spectrin and actin filaments to form polygonal scaffolds beneath the cell membranes and form ring-like structures in neuronal axons. Adducins regulate mouse neural development, but their function in the human brain is unknown Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14647 | ATPAF2 | Chirag Patel reviewed gene: ATPAF2: Rating: RED; Mode of pathogenicity: None; Publications: PMID: 14757859; Phenotypes: ?Mitochondrial complex V (ATP synthase) deficiency, nuclear type 1, OMIM# 604273; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14379 | RBFOX2 |
Chern Lim edited their review of gene: RBFOX2: Added comment: - PMID: 26785492: Analysed CHD (1213 congenital heart disease trios) and control (autism spectrum disorder) trios for de novo mutations. Found RBFOX2 gene had significantly more damaging de novo variants than expected: 3 de novo LoF variants (eg. nonsense, frameshift, or canonical splice disruptions). All 3 probands have hypoplastic left heart syndrome (HLHS). No further patient-specific clinical or variant info were available. Same cohort later included in PMID: 32368696, listed 4 de novo variants in this gene, in patients with left ventricular outflow tract obstruction (LVOTO) or conotruncal defects (CTDs). - PMID: 27670201: RNA expression study showed the silenced allele harbours a nonsense RBFOX2 variant (Arg287*), CHD patient heart tissue sample, same patient published in PMID: 26785492. - PMID: 27485310: Functional studies using heart tissue sample from HLHS patient with NM_001031695.2:c.859C>T p.(Arg287*) showed subcellular mislocalisation, impacting its nuclear function in RNA splicing. - PMID: 25205790: De novo 111.3kb del chr22:36038076-36149338 (hg19) which includes APOL5,APOL6,RBFOX2, in a patient with HLHS. - PMID: 35137168: Rbfox2 conditional knockout mouse model recapitulated several molecular and phenotypic features of HLHS.; Changed publications: PMID: 26785492, 27670201, 27485310, 25205790, 35137168, 26785492 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14345 | RBFOX2 |
Chern Lim gene: RBFOX2 was added gene: RBFOX2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RBFOX2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RBFOX2 were set to PMID: 26785492; 27670201; 27485310; 25205790; 35137168 Phenotypes for gene: RBFOX2 were set to Hypoplastic left heart syndrome (HLHS) Review for gene: RBFOX2 was set to AMBER gene: RBFOX2 was marked as current diagnostic Added comment: - PMID: 26785492: Analysed CHD (1213 congenital heart disease trios) and control (autism spectrum disorder) trios for de novo mutations. Found RBFOX2 gene had significantly more damaging de novo variants than expected: 3 de novo LoF variants (eg. nonsense, frameshift, or canonical splice disruptions). All 3 probands have hypoplastic left heart syndrome (HLHS). No further patient-specific clinical or variant info were available. - PMID: 27670201: RNA expression study showed the silenced allele harbours a nonsense RBFOX2 variant (Arg287*), CHD patient heart tissue sample, same patient published in PMID: 26785492. - PMID: 27485310: Functional studies using heart tissue sample from HLHS patient with NM_001031695.2:c.859C>T p.(Arg287*) showed subcellular mislocalisation, impacting its nuclear function in RNA splicing. - PMID: 25205790: De novo 111.3kb del chr22:36038076-36149338 (hg19) which includes APOL5,APOL6,RBFOX2, in a patient with HLHS. - PMID: 35137168: Rbfox2 conditional knockout mouse model recapitulated several molecular and phenotypic features of HLHS. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14337 | UQCC2 | Zornitza Stark Phenotypes for gene: UQCC2 were changed from to Mitochondrial complex III deficiency, nuclear type 7 - MIM#615824 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14334 | UQCRB | Zornitza Stark Phenotypes for gene: UQCRB were changed from to Mitochondrial complex III deficiency, nuclear type 3, MIM# 615158 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14312 | MTFMT | Zornitza Stark Phenotypes for gene: MTFMT were changed from to Combined oxidative phosphorylation deficiency 15, MIM# 614947; Mitochondrial complex I deficiency, nuclear type 27, MIM# 618248 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14309 | MTFMT | Zornitza Stark reviewed gene: MTFMT: Rating: GREEN; Mode of pathogenicity: None; Publications: 21907147, 23499752, 24461907, 22499348; Phenotypes: Combined oxidative phosphorylation deficiency 15, MIM# 614947, Mitochondrial complex I deficiency, nuclear type 27, MIM# 618248; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14232 | MYOCD |
Zornitza Stark changed review comment from: Congenital megabladder (MGBL) is characterized by a massively dilated bladder with disrupted smooth muscle in the bladder wall. MGBL is a sex-limited trait with 95% male predominance, likely the result of differences in urethra and bladder development and length differences in urethra between males and females. Seven affected males from three families. Five females and one male with the variant were unaffected, suggesting incomplete penetrance. Additional family in PMID 35005812 as part of a large prenatal renal cohort.; to: Congenital megabladder (MGBL) is characterized by a massively dilated bladder with disrupted smooth muscle in the bladder wall. MGBL is a sex-limited trait with 95% male predominance, likely the result of differences in urethra and bladder development and length differences in urethra between males and females. Seven affected males from three families. Five females and one male with the variant were unaffected, suggesting incomplete penetrance. Additional family in PMID 35005812 as part of a large prenatal renal cohort. Mono allelic disease in males (megabladder), bi-allelic disease in males and females (megabladder and congenital heart disease). Mouse models. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13984 | LYRM7 | Alison Yeung Phenotypes for gene: LYRM7 were changed from to Mitochondrial complex III deficiency, nuclear type 8, MIM#615838 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13828 | CYC1 | Ain Roesley Phenotypes for gene: CYC1 were changed from to Mitochondrial complex III deficiency, nuclear type 6 MIM#615453 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13826 | CYC1 | Ain Roesley reviewed gene: CYC1: Rating: GREEN; Mode of pathogenicity: None; Publications: 23910460, 34252606; Phenotypes: Mitochondrial complex III deficiency, nuclear type 6 MIM#615453; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13792 | CD164 |
Alison Yeung gene: CD164 was added gene: CD164 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CD164 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CD164 were set to 26197441; 35254497; 26197441 Phenotypes for gene: CD164 were set to Deafness, autosomal dominant 66, MIM# 616969 Review for gene: CD164 was set to GREEN Added comment: p.(Arg192Ter), a truncating variant that results in loss of 6 amino acids, was detected in two families (one Polish and one Korean) with hearing loss. Four affected (heterozygous) and two unaffected (neg) were tested, however 14 members had been diagnosed with HL in a large multi generational family (gene panel 237 genes). The second family (WES) had two affected heterozygous and no unaffected were tested. This same variant had previously been reported in a Danish family (12 affected heterozygous and 13 unaffected negative, but one younger member unaffected are heterozygous) with hearing loss (PMID: 26197441), for which functional studies in HEK cells demonstrated that the truncated protein was almost completely retained on the plasma cell membrane in contrast to the wild-type protein, which targeted primarily to the endo-lysosomal compartments. The YHTL motif, deleted by the c.574C>T nonsense mutation, is a canonical sorting motif known to be recognized by specific adaptor proteins in the cytosol, leading to subcellular trafficking of the transmembrane protein to endosomes and lysosomes. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13687 | HMX1 |
Zornitza Stark changed review comment from: Oculoauricular syndrome (OCACS) is characterized by complex ocular anomalies, including congenital cataract, anterior segment dysgenesis, iris coloboma, and early-onset retinal dystrophy, and dysplastic ears with abnormal external ear cartilage. At least two families and two animal models. Also evidence that duplication of long-range enhancer causes microbial.; to: Oculoauricular syndrome (OCACS) is characterized by complex ocular anomalies, including congenital cataract, anterior segment dysgenesis, iris coloboma, and early-onset retinal dystrophy, and dysplastic ears with abnormal external ear cartilage. At least two families and two animal models. Also evidence that duplication of long-range enhancer causes microtia. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13683 | DUSP6 |
Krithika Murali changed review comment from: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing. Summary of DUSP6 variants identified in this study c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3 c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant) c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant No segregation information provided. PMID: 23643382 - Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. In 5 unrelated individuals with congenital hypogonadotropic hypogonadism 4 heterozygous missense were identified. In 3 of the probands, the DUSP6 mutation was accompanied by a heterozygous missense mutation in another HH-associated gene. 3 of the 4 variants have subpopulation allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Thr346Met (AJ AF 0.002797), p.Ser182Phe (NFE AF 0.001396), p.Asn189Ser (NFE AF 0.0003641). No functional assays were conducted. PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.; to: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing. Summary of DUSP6 variants identified in this study c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3 c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant) c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant No segregation information provided. Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13683 | DUSP6 |
Krithika Murali changed review comment from: 1 study cited by OMIM (Miraoui et al 2013) - heterozygous variants in 5 unrelated individuals with congenital hypogonadotrophic hypogonadism (CHH). 4/5 variants highly prevalent in healthy population and/or in conjunction with variants in other genes either known to be associated with CHH or possibly associated. No additional studies published since this paper. PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing. Summary of DUSP6 variants identified in this study c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3 c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant) c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant No segregation information provided.; to: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing. Summary of DUSP6 variants identified in this study c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3 c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant) c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant No segregation information provided. PMID: 23643382 - Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. In 5 unrelated individuals with congenital hypogonadotropic hypogonadism 4 heterozygous missense were identified. In 3 of the probands, the DUSP6 mutation was accompanied by a heterozygous missense mutation in another HH-associated gene. 3 of the 4 variants have subpopulation allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Thr346Met (AJ AF 0.002797), p.Ser182Phe (NFE AF 0.001396), p.Asn189Ser (NFE AF 0.0003641). No functional assays were conducted. PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13637 | HK1 |
Zornitza Stark changed review comment from: HMSNR is an autosomal recessive progressive complex peripheral neuropathy characterized by onset in the first decade of distal lower limb weakness and muscle atrophy resulting in walking difficulties. Distal impairment of the upper limbs usually occurs later, as does proximal lower limb weakness. There is distal sensory impairment, with pes cavus and areflexia. Laboratory studies suggest that it is a myelinopathy resulting in reduced nerve conduction velocities in the demyelinating range as well as a length-dependent axonopathy. Founder variant in the Roma, -3818-195G-C, AltT2 EXON in 5'UTR identified in multiple families. Note gene is associated with other phenotypes.; to: Bi-allelic variants and neuropathy: HMSNR is an autosomal recessive progressive complex peripheral neuropathy characterized by onset in the first decade of distal lower limb weakness and muscle atrophy resulting in walking difficulties. Distal impairment of the upper limbs usually occurs later, as does proximal lower limb weakness. There is distal sensory impairment, with pes cavus and areflexia. Laboratory studies suggest that it is a myelinopathy resulting in reduced nerve conduction velocities in the demyelinating range as well as a length-dependent axonopathy. Founder variant in the Roma, -3818-195G-C, AltT2 EXON in 5'UTR identified in multiple families. Note gene is associated with other phenotypes. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13633 | SLC24A1 | Zornitza Stark Phenotypes for gene: SLC24A1 were changed from to Night blindness, congenital stationary (complete), 1D, autosomal recessive, MIM#613830, MONDO:0013450 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13616 | SLC24A1 | Manny Jacobs reviewed gene: SLC24A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 35486108, 35446361, 20850105, 26822852; Phenotypes: Night blindness, congenital stationary (complete), 1D, autosomal recessive, MIM#613830, MONDO:0013450; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13536 | BRIP1 | Zornitza Stark Phenotypes for gene: BRIP1 were changed from to Fanconi anaemia, complementation group J, MIM# 609054 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13533 | BRIP1 | Zornitza Stark reviewed gene: BRIP1: Rating: GREEN; Mode of pathogenicity: None; Publications: 27107905; Phenotypes: Fanconi anaemia, complementation group J, MIM# 609054; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13443 | ENTPD1 | Zornitza Stark commented on gene: ENTPD1: PMID 35471564: 27 individuals from 17 families published, expanding the phenotype to a complex neurodevelopmental disorder characterised by ID, white matter abnormalities and spastic paraplegia. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13426 | TUBA8 | Zornitza Stark Phenotypes for gene: TUBA8 were changed from Cortical dysplasia, complex, with other brain malformations 8, MIM# 613180 to Macrothrombocytopaenia, isolated, 2, autosomal dominant, MIM# 619840 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13292 | CFI | Ain Roesley Phenotypes for gene: CFI were changed from to Complement factor I deficiency MIM#610984; {Hemolytic uremic syndrome, atypical, susceptibility to, 3} MIM#612923 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13289 | CFI | Ain Roesley reviewed gene: CFI: Rating: GREEN; Mode of pathogenicity: None; Publications: 29292855, 28942469, 27091480, 20301541; Phenotypes: Complement factor I deficiency MIM#610984, {Hemolytic uremic syndrome, atypical, susceptibility to, 3} MIM#612923; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13059 | CFH | Ain Roesley Phenotypes for gene: CFH were changed from to Basal laminar drusen MIM#126700; Complement factor H deficiency MIM#609814; {Hemolytic uremic syndrome, atypical, susceptibility to, 1} MIMI#235400 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13058 | CFH | Ain Roesley reviewed gene: CFH: Rating: GREEN; Mode of pathogenicity: None; Publications: 27572114, 25814826, 20301541, 9312129, 10803850, 29888403, 30905644; Phenotypes: Basal laminar drusen MIM#126700, Complement factor H deficiency MIM#609814, {Hemolytic uremic syndrome, atypical, susceptibility to, 1} MIMI#235400; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13043 | CFD | Ain Roesley Phenotypes for gene: CFD were changed from to Complement factor D deficiency MIM#613912 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13040 | CFD | Ain Roesley reviewed gene: CFD: Rating: GREEN; Mode of pathogenicity: None; Publications: 11457876, 16527897, 31440263; Phenotypes: Complement factor D deficiency MIM#613912; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13007 | PRKAR1A | Zornitza Stark Phenotypes for gene: PRKAR1A were changed from to Acrodysostosis 1, with or without hormone resistance, MIM# 101800; Carney complex, type 1, MIM# 160980; Myxoma, intracardiac, MIM# 255960; Pigmented nodular adrenocortical disease, primary, 1, MIM# 610489 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13004 | PRKAR1A | Zornitza Stark reviewed gene: PRKAR1A: Rating: GREEN; Mode of pathogenicity: None; Publications: 10973256, 11115848, 12424709, 21651393; Phenotypes: Acrodysostosis 1, with or without hormone resistance, MIM# 101800, Carney complex, type 1, MIM# 160980, Myxoma, intracardiac, MIM# 255960, Pigmented nodular adrenocortical disease, primary, 1, MIM# 610489; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12863 | SERPING1 | Zornitza Stark Phenotypes for gene: SERPING1 were changed from to Angioedema, hereditary, 1 and 2, MIM#106100; Complement component 4, partial deficiency of, MIM#120790 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12851 | CD55 | Ain Roesley Phenotypes for gene: CD55 were changed from to Complement hyperactivation, angiopathic thrombosis, and protein-losing enteropathy, MIM# 226300 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12849 | CD55 | Ain Roesley reviewed gene: CD55: Rating: GREEN; Mode of pathogenicity: None; Publications: 28657829, 28657861; Phenotypes: Complement hyperactivation, angiopathic thrombosis, and protein-losing enteropathy, MIM# 226300; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12821 | TRPM1 | Zornitza Stark Phenotypes for gene: TRPM1 were changed from to Night blindness, congenital stationary (complete), 1C, autosomal recessive, MIM# 613216 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12818 | TRPM1 | Zornitza Stark reviewed gene: TRPM1: Rating: GREEN; Mode of pathogenicity: None; Publications: 19878917, 19896113, 19896109; Phenotypes: Night blindness, congenital stationary (complete), 1C, autosomal recessive, MIM# 613216; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12787 | SERPING1 | Samantha Ayres reviewed gene: SERPING1: Rating: GREEN; Mode of pathogenicity: None; Publications: 35386643, 31517426, 29753808; Phenotypes: Angioedema, hereditary, 1 and 2, MIM#106100, Complement component 4, partial deficiency of, MIM#120790; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12762 | TTC19 | Zornitza Stark Phenotypes for gene: TTC19 were changed from to Mitochondrial complex III deficiency, nuclear type 2, MIM#615157 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12759 | TTC19 |
Zornitza Stark edited their review of gene: TTC19: Added comment: Mitochondrial complex III deficiency nuclear type 2 is an autosomal recessive severe neurodegenerative disorder that usually presents in childhood, but may show later onset, even in adulthood. Affected individuals have motor disability, with ataxia, apraxia, dystonia, and dysarthria, associated with necrotic lesions throughout the brain. Most patients also have cognitive impairment and axonal neuropathy and become severely disabled later in life. The disorder may present clinically as spinocerebellar ataxia or Leigh syndrome, or with psychiatric disturbances. At least 4 unrelated families reported.; Changed publications: 21278747, 23532514, 24368687, 24397319 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12731 | CACNA2D1 |
Michelle Torres gene: CACNA2D1 was added gene: CACNA2D1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CACNA2D1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CACNA2D1 were set to 35293990 Phenotypes for gene: CACNA2D1 were set to developmental and epileptic encephalopathy disorder MONDO:0100062 CACNA2D1-related Review for gene: CACNA2D1 was set to GREEN Added comment: PMID 35293990: WES of 2x unrelated individuals with early-onset developmental epileptic encephalopathy, microcephaly, severe hypotonia, absent speech, spasticity, choreiform movements, orofacial dyskinesia, and 2 cortical visual impairment, corpus callosum hypoplasia and progressive volume loss. Patient 2 also had a tiny patent foramen ovale. Patient 1 is homozygous for p.(Ser275Asnfs*13). mRNA and protein expression were reduced to ~10% of WT in fibroblasts Patient 2 is cHet for p.(Leu9Alafs*5) and p.(Gly209Asp). mRNA expression in patients fibroblasts was similar to controls, and protein expression reduced to 31-38%. Functional of the p.(Gly209Asp) showed impaired localization and mutagenesis showed complete loss of channel function. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12720 | FUZ | Anna Ritchie changed review comment from: Novel missense p.(Arg284Pro) mutation in FUZ identified in twins presenting with craniosynostosis. Loss of Fuz resulted in increased mineralisation in both in vitro embryonic primary osteoblast cultures and in fibroblasts undergoing an osteogenic challenge. No previous reports have implicated changes in human FUZ in craniosynostosis. However, variations in FUZ have been found in patients with neural tube defects.; to: Novel missense p.(Arg284Pro) mutation in FUZ identified in twins presenting with craniosynostosis. Loss of Fuz resulted in increased mineralisation in both in vitro embryonic primary osteoblast cultures and in fibroblasts undergoing an osteogenic challenge. No previous reports have implicated changes in human FUZ in craniosynostosis. However, variations in FUZ have been found in patients with neural tube defects. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12697 | TMEM126B | Zornitza Stark Phenotypes for gene: TMEM126B were changed from to Mitochondrial complex I deficiency, nuclear type 29, MIM# 618250 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12694 | TMEM126B | Zornitza Stark reviewed gene: TMEM126B: Rating: GREEN; Mode of pathogenicity: None; Publications: 27374774, 27374773; Phenotypes: Mitochondrial complex I deficiency, nuclear type 29, MIM# 618250; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12688 | RAD51C | Zornitza Stark Phenotypes for gene: RAD51C were changed from to Fanconi anaemia, complementation group O (MIM#613390) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12676 | RAD51C | Crystle Lee reviewed gene: RAD51C: Rating: GREEN; Mode of pathogenicity: None; Publications: 29278735, 20400963, 22167183; Phenotypes: Fanconi anemia, complementation group O (MIM#613390); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12495 | TMEM70 | Zornitza Stark Phenotypes for gene: TMEM70 were changed from to Mitochondrial complex V (ATP synthase) deficiency, nuclear type 2, MIM# 614052 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12492 | TMEM70 | Zornitza Stark reviewed gene: TMEM70: Rating: GREEN; Mode of pathogenicity: None; Publications: 18953340, 21147908, 30950220; Phenotypes: Mitochondrial complex V (ATP synthase) deficiency, nuclear type 2, MIM# 614052; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12338 | PADI6 | Zornitza Stark Phenotypes for gene: PADI6 were changed from to Pre-implantation embryonic lethality 2 MIM#617234; Multi locus imprinting disturbance in offspring; Recurrent hydatiform mole | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12285 | PADI6 | Krithika Murali reviewed gene: PADI6: Rating: GREEN; Mode of pathogenicity: None; Publications: 29693651, 33583041, 329228291, 33221824, 27545678; Phenotypes: Pre-implantation embryonic lethality 2 MIM#617234, Multi locus imprinting disturbance in offspring, Recurrent hydatiform mole; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12166 | NDUFAF5 | Zornitza Stark Phenotypes for gene: NDUFAF5 were changed from to Mitochondrial complex I deficiency, nuclear type 3 MIM#618224 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12163 | NDUFS4 | Zornitza Stark Phenotypes for gene: NDUFS4 were changed from to Mitochondrial complex I deficiency, nuclear type 1 - MIM#252010 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12160 | NDUFV2 | Zornitza Stark Phenotypes for gene: NDUFV2 were changed from to Mitochondrial complex I deficiency, nuclear type 7 - MIM#618229 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12148 | NUBPL | Zornitza Stark Phenotypes for gene: NUBPL were changed from to Mitochondrial complex I deficiency, nuclear type 21 - MIM#618242 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12099 | CACNA1F | Ain Roesley Phenotypes for gene: CACNA1F were changed from to Aland Island eye disease MIM#300600; Cone-rod dystrophy, X-linked, 3 MIM#300476; Night blindness, congenital stationary (incomplete), 2A, X-linked MIM#300071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12097 | CACNA1F | Ain Roesley reviewed gene: CACNA1F: Rating: GREEN; Mode of pathogenicity: None; Publications: 17525176, 16505158, 23776498, 24124559, 26075273, 25999675; Phenotypes: Aland Island eye disease MIM#300600, Cone-rod dystrophy, X-linked, 3 MIM#300476, Night blindness, congenital stationary (incomplete), 2A, X-linked MIM#300071; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12062 | NUBPL | Krithika Murali reviewed gene: NUBPL: Rating: GREEN; Mode of pathogenicity: None; Publications: 20818383, 32518176, 23553477, 31917109, 32518176, 31787496, 30897263, 22826544; Phenotypes: Mitochondrial complex I deficiency, nuclear type 21 - MIM#618242; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11835 | NLGN3 | Zornitza Stark Phenotypes for gene: NLGN3 were changed from to X-linked complex neurodevelopmental disorder MONDO:0100148; {Asperger syndrome susceptibility, X-linked 1} - MIM#300494; {Autism susceptibility, X-linked 1} - MIM#300425 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11798 | SURF1 | Zornitza Stark Phenotypes for gene: SURF1 were changed from to Charcot-Marie-Tooth disease, type 4K MIM#616684; Mitochondrial complex IV deficiency, nuclear type 1 MIM#220110 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11795 | SURF1 | Zornitza Stark reviewed gene: SURF1: Rating: GREEN; Mode of pathogenicity: None; Publications: 9843204, 9837813; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 1, MIM# 220110; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11768 | NDUFV2 | Krithika Murali reviewed gene: NDUFV2: Rating: GREEN; Mode of pathogenicity: None; Publications: 33811136, 34405929, 12754703, 26008862, 30770271, 19167255; Phenotypes: Mitochondrial complex I deficiency, nuclear type 7 - MIM#618229; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11745 | NDUFS6 | Zornitza Stark Phenotypes for gene: NDUFS6 were changed from to Mitochondrial complex I deficiency, nuclear type 9 - MIM#618232 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11683 | NDUFS3 | Zornitza Stark Phenotypes for gene: NDUFS3 were changed from to Mitochondrial complex I deficiency, nuclear type 8 - MIM#618230 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11680 | NDUFS6 | Krithika Murali reviewed gene: NDUFS6: Rating: GREEN; Mode of pathogenicity: None; Publications: 15372108, 19259137, 30948790; Phenotypes: Mitochondrial complex I deficiency, nuclear type 9 - MIM#618232; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11680 | NDUFS2 | Zornitza Stark Phenotypes for gene: NDUFS2 were changed from to Mitochondrial complex I deficiency, nuclear type 6 - MIM#618228 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11674 | C4A |
Ain Roesley changed review comment from: Associated with increased risk for systemic lupus erythematosus (SLE). This is mostly involving haplotypes, gene copy number, gene conversions with/without C4B; to: Associated with increased risk for systemic lupus erythematosus (SLE). This is mostly involving haplotypes, gene copy number, gene conversions with/without C4B There are no LP/P SNV in clinvar PMID: 32048120; 2019 Update of the IUIS Phenotypical Classification indicates that complete C4 deficiency requires both C4A+C4B and C4A alone leads to partial deficiency |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11668 | C4B |
Ain Roesley changed review comment from: Associated with increased risk for systemic lupus erythematosus (SLE). This is mostly involving haplotypes, gene copy number, gene conversions with/without C4A; to: Associated with increased risk for systemic lupus erythematosus (SLE). This is mostly involving haplotypes, gene copy number, gene conversions with/without C4A no LP/P SNVs in clinvar. (1 LP but evidence provided indicates that it was classified as a VUS) PMID: 32048120; 2019 Update of the IUIS Phenotypical Classification indicates that complete C4 deficiency requires both C4A+C4B and C4A alone leads to partial deficiency |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11668 | NDUFS1 | Zornitza Stark Phenotypes for gene: NDUFS1 were changed from to Mitochondrial complex I deficiency, nuclear type 5 - MIM#618226 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11665 | NDUFS4 | Krithika Murali reviewed gene: NDUFS4: Rating: GREEN; Mode of pathogenicity: None; Publications: 11181577, 11165261, 16478720, 10944442, 24295889, 22326555, 27079373, 15975579, 19364667, 27671926, 33093004, 29264396, 34484776; Phenotypes: Mitochondrial complex I deficiency, nuclear type 1 - MIM#252010; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11665 | UQCRB | Belinda Chong reviewed gene: UQCRB: Rating: GREEN; Mode of pathogenicity: None; Publications: 23281071, 28275242, 12709789, 25446085, 23454382; Phenotypes: Mitochondrial complex III deficiency, nuclear type 3, MIM# 615158; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11665 | UQCC2 | Belinda Chong reviewed gene: UQCC2: Rating: GREEN; Mode of pathogenicity: None; Publications: 24385928, 28804536; Phenotypes: Mitochondrial complex III deficiency, nuclear type 7 - MIM#615824; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11652 | NDUFS3 | Krithika Murali reviewed gene: NDUFS3: Rating: GREEN; Mode of pathogenicity: None; Publications: 22499348, 30140060, 14729820, 33097395; Phenotypes: Mitochondrial complex I deficiency, nuclear type 8 - MIM#618230; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11649 | NDUFS2 | Krithika Murali reviewed gene: NDUFS2: Rating: GREEN; Mode of pathogenicity: None; Publications: 28031252, 31411514, 22036843, 20819849, 11220739, 23266820, 31411514; Phenotypes: Mitochondrial complex I deficiency, nuclear type 6 - MIM#618228; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11649 | NDUFS1 | Krithika Murali reviewed gene: NDUFS1: Rating: GREEN; Mode of pathogenicity: None; Publications: 33751534, 24952175, 20382551, 21203893, 20797884, 15824269, 25615419, 11349233, 22399432; Phenotypes: Mitochondrial complex I deficiency, nuclear type 5 - MIM#618226; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11583 | VEGFA | Zornitza Stark Phenotypes for gene: VEGFA were changed from to {Microvascular complications of diabetes 1} 603933 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11581 | VEGFA | Zornitza Stark reviewed gene: VEGFA: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: {Microvascular complications of diabetes 1} 603933; Mode of inheritance: None | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11564 | NDUFB8 | Zornitza Stark Phenotypes for gene: NDUFB8 were changed from to Mitochondrial complex I deficiency, nuclear type 32 - MIM#618252 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11554 | NDUFAF4 | Zornitza Stark Phenotypes for gene: NDUFAF4 were changed from to Mitochondrial complex I deficiency, nuclear type 15 - MIM#618237 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11547 | NDUFAF3 | Zornitza Stark Phenotypes for gene: NDUFAF3 were changed from to Mitochondrial complex I deficiency, nuclear type 18 - MIM#618240 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11544 | NDUFA2 | Zornitza Stark Phenotypes for gene: NDUFA2 were changed from to Mitochondrial complex I deficiency, nuclear type 13 - MIM#618235 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11541 | NDUFB8 | Krithika Murali reviewed gene: NDUFB8: Rating: GREEN; Mode of pathogenicity: None; Publications: 29429571; Phenotypes: Mitochondrial complex I deficiency, nuclear type 32 - MIM#618252; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11540 | NDUFAF4 |
Krithika Murali edited their review of gene: NDUFAF4: Added comment: 3 unrelated families reported with patient-specific functional evidence provided for each. PMID: 32949790 - report two siblings with facial dysmorphism and lactic acidosis diagnosed neonatally with subsequent fatal early encephalopathy with apneic episodes, irritability, central hypoventilation, liver involvement and hyperammonemia. Cerebral white matter anomalies reported in one patient and cardiomyopathy in the other. WES identified homozygous nonsense NDUFAF4 variants with absent NDUFAF4 expression in patient fibroblasts. OXPHOS assembly studies demonstrated almost undetectable levels of fully assembled complex I and complex I–containing supercomplexes and an abnormal accumulation of SCIII2IV1 supercomplexes. Morphologically, fibroblasts showed rounder mitochondria and a diminished degree of branching of the mitochondrial network. PMID: 28853723 - report one patient born at 38 weeks after IOL for IUGR. Presented age 7 months with developmental regression, growth failure and central hypotonia. Brain MRI revealed diffuse bilateral signal alterations in the basal ganglia and thalami and an EEG showed generalized slowing with multifocal spikes consistent with an epileptogenic focus. Homozygous missense NDUFAF4 variants identified. Lentiviral complementation of patient fibroblasts with wild-type NDUFAF4 rescued complex I deficiency and assembly defect PMID 18179882 - report multiple affected individuals from one family. Most presented soon after birth with severe metabolic acidosis and high plasma lactate levels. Patients who survived longer were repeatedly admitted because of exacerbation of the acidosis during intercurrent infections. One long-term survivor had profound ID.; Changed publications: 32949790, 28853723, 18179882 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11540 | NDUFAF4 | Krithika Murali reviewed gene: NDUFAF4: Rating: GREEN; Mode of pathogenicity: None; Publications: 32949790, 28853723; Phenotypes: Mitochondrial complex I deficiency, nuclear type 15 - MIM#618237; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11540 | NDUFAF3 | Krithika Murali reviewed gene: NDUFAF3: Rating: GREEN; Mode of pathogenicity: None; Publications: 27986404, 29344937, 19463981; Phenotypes: Mitochondrial complex I deficiency, nuclear type 18 - MIM#618240; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11537 | NDUFA2 | Krithika Murali reviewed gene: NDUFA2: Rating: GREEN; Mode of pathogenicity: None; Publications: 28857146, 32154054, 18513682; Phenotypes: Mitochondrial complex I deficiency, nuclear type 13 - MIM#618235; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11523 | IL10 |
Zornitza Stark changed review comment from: At least two families and a mouse model. Rare variants in this gene are also associated with susceptibility to a range of immune-related complex disorder.; to: At least two families and a mouse model. Rare variants in this gene are also associated with susceptibility to a range of immune-related complex disorders. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11503 | NDUFAF2 | Zornitza Stark Phenotypes for gene: NDUFAF2 were changed from to Mitochondrial complex I deficiency, nuclear type 10 - MIM#618233 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11500 | NDUFAF1 | Zornitza Stark Phenotypes for gene: NDUFAF1 were changed from to Mitochondrial complex I deficiency, nuclear type 11 - MIM#618234 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11497 | NDUFA9 | Zornitza Stark Phenotypes for gene: NDUFA9 were changed from to Mitochondrial complex I deficiency, nuclear type 26 - MIM#618247 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11483 | NDUFAF2 | Krithika Murali reviewed gene: NDUFAF2: Rating: GREEN; Mode of pathogenicity: None; Publications: 33528536, 34364746, 16200211, 19384974, 20571988; Phenotypes: Mitochondrial complex I deficiency, nuclear type 10 - MIM#618233; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11483 | NDUFAF1 | Krithika Murali reviewed gene: NDUFAF1: Rating: GREEN; Mode of pathogenicity: None; Publications: 17557076, 21931170, 16218961, 24963768, 34975718; Phenotypes: Mitochondrial complex I deficiency, nuclear type 11 - MIM#618234; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11483 | NDUFA9 | Krithika Murali reviewed gene: NDUFA9: Rating: GREEN; Mode of pathogenicity: None; Publications: 26425749, 28671271, 22114105; Phenotypes: Mitochondrial complex I deficiency, nuclear type 26 - MIM#618247; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11459 | NDUFA10 | Zornitza Stark reviewed gene: NDUFA10: Rating: GREEN; Mode of pathogenicity: None; Publications: 21150889, 26741492, 28247337; Phenotypes: Mitochondrial complex I deficiency, nuclear type 22 - MIM#618243; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11459 | NDUFA10 | Zornitza Stark Phenotypes for gene: NDUFA10 were changed from to Mitochondrial complex I deficiency, nuclear type 22 - MIM#618243 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11422 | NDUFA10 | Krithika Murali reviewed gene: NDUFA10: Rating: GREEN; Mode of pathogenicity: None; Publications: 26741492, 21150889; Phenotypes: Mitochondrial complex I deficiency, nuclear type 22 - MIM#618243; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11268 | TLN1 |
Bryony Thompson gene: TLN1 was added gene: TLN1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TLN1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TLN1 were set to 30888838 Phenotypes for gene: TLN1 were set to idiopathic spontaneous coronary artery dissection MONDO:0007385 Review for gene: TLN1 was set to AMBER Added comment: 10 unique rare heterozygous missense variants in 11 individuals were identified in a 2 generation SCAD family and 56 unrelated individuals with sporadic SCAD. All variants had a MAF of less than 0.06% and occurred within highly conserved β-integrin, F-actin, or vinculin binding domains. Incomplete penetrance was evident in the familial case and five individuals with sporadic SCAD from whom parental DNA was available. No functional assays were conducted. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11253 | TMEM151A |
Bryony Thompson gene: TMEM151A was added gene: TMEM151A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TMEM151A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TMEM151A were set to 34820915; 34518509 Phenotypes for gene: TMEM151A were set to episodic kinesigenic dyskinesia MONDO:0044202 Review for gene: TMEM151A was set to GREEN Added comment: PMID: 34820915 - 24 heterozygous TMEM151A variants detected in 29 PRRT2-negative patients from 25 families PMID: 34518509 - TMEM151A variants identified in 3 AD families and 8 isolated PKD patients with incomplete penetrance identified in 3 of the isolated cases. Also, supporting mouse model and in vitro functional assays suggesting loss of function as the mechanism of disease. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11099 | CPSF3 |
Belinda Chong gene: CPSF3 was added gene: CPSF3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CPSF3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CPSF3 were set to 35121750 Phenotypes for gene: CPSF3 were set to Intellectual disability syndrome Review for gene: CPSF3 was set to GREEN Added comment: study of a deficit of observed homozygous carriers of missense variants, versus an expected number in a set of 153,054 chip-genotyped Icelanders, to identify potentially pathogenic genotypes Six homozygous carriers of missense variants in CPSF3 show severe intellectual disability, seizures, microcephaly, and abnormal muscle tone. - Four identified through Icelandic geneology (p.Gly468Glu), three carrier couples total of four children who had died prematurely. Tested archival samples for two of these children, and confirm a homozygous genotype. - Two of Mexican descent (p.Ile354Thr), first-degree cousins Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11076 | PPP2R3C |
Zornitza Stark gene: PPP2R3C was added gene: PPP2R3C was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PPP2R3C was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PPP2R3C were set to 30893644; 34714774; 34750818 Phenotypes for gene: PPP2R3C were set to Gonadal dysgenesis, dysmorphic facies, retinal dystrophy, and myopathy, OMIM # 618419 Review for gene: PPP2R3C was set to GREEN Added comment: Gonadal dysgenesis, dysmorphic facies, retinal dystrophy, and myopathy (GDRM) is characterized by 46,XY complete gonadal dysgenesis in association with extragonadal anomalies, low birth weight, typical facial gestalt, rod and cone dystrophy, sensorineural hearing loss, omphalocele, anal atresia, renal agenesis, skeletal abnormalities, dry and scaly skin, severe myopathy, and neuromotor delay. 11 unrelated families with syndromic complete gonadal dysgenesis. 9 families had 46,XY females with complete gonadal dysgenesis, but 2 families had 46,XX patients with hypergonadotropic hypogonadism, nonvisualized gonads, primary amenorrhea, and absence of secondary sexual characteristics. Variants segregated with disease in each family and were not found in ethnically matched controls or in public variant databases. The heterozygous fathers exhibited morphologic abnormalities of spermatozoa and reduced fertility. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11071 | CHKA |
Konstantinos Varvagiannis gene: CHKA was added gene: CHKA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CHKA was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CHKA were set to 35202461 Phenotypes for gene: CHKA were set to Abnormal muscle tone; Global developmental delay; Intellectual disability; Seizures; Microcephaly; Abnormality of movement; Abnormality of nervous system morphology; Short stature Penetrance for gene: CHKA were set to Complete Review for gene: CHKA was set to GREEN Added comment: Klöckner (2022 - PMID: 35202461) describe the phenotype of 6 individuals (from 5 unrelated families) harboring biallelic CHKA variants. Shared features incl. abnormal muscle tone(6/6 - hypertonia or hypotonia, 3/6 each), DD/ID (6/6,severe in 4, severe/profound in 2), epilepsy (6/6 - onset: infancy - 3y2m | epileptic spasms or GS at onset), microcephaly (6/6), movement disorders (3/6 - incl. dyskinesia, rigidity, choreoatetotic movements). 2/5 individuals exhibited MRI abnormalities, notably hypomyelination. Short stature was observed in 4/6. Eventual previous genetic testing was not discussed. Exome sequencing (quattro ES for 2 sibs, trio ES for 1 individual, singleton for 3 probands) revealed biallelic CHKA variants in all affected individuals. Sanger sequencing was performed for confirmation and segregation studies. Other variants (in suppl.) were not deemed to be causative for the neurodevelopmental phenotype. 3 different missense, 1 start-loss and 1 truncating variant were identified, namely (NM_0012772.2): - c.421C>T/p.(Arg141Trp) [3 hmz subjects from 2 consanguineous families], - c.580C>T/p.Pro194Ser [1 hmz individual born to consanguineous parents], - c.2T>C/p.(Met1?) [1 hmz individual born to related parents], - c.14dup/p.(Cys6Leufs*19) in trans with c.1021T>C/p.(Phe341Leu) in 1 individual. CHKA encodes choline kinase alpha, an enzyme catalyzing the first step of phospholipid synthesis in the Kennedy pathway. The pathway is involved in de novo synthesis of glycerophospholipids, phosphatidylcholine and phosphatidylethanolamine being the most abundant in eukaryotic membranes. CHKA with its paralog (CHKB) phosphorylates either choline or ethanolamine to phosphocholine or phosphoethanolamine respectively with conversion of ATP to ADP. As the authors comment, biallelic pathogenic variants in CHKB cause a NDD with muscular dystrophy, hypotonia, ID, microcephaly and structural mitochondrial anomalies (MIM 602541). [Prominent mitochondrial patterning was observed in a single muscle biopsy available from an individual with biallelic CHKA variants]. Other disorders of the Kennedy pathway (due to biallelic PCYT2, SELENOI, PCYT1A variants) present with overlapping features incl. variable DD/ID (no-severe), microcephaly, seizures, visual impairment etc. CHKA variants were either absent or observed once in gnomAD, affected highly conserved AAs with multiple in silico predictions in favor of a deleterious effect. In silico modeling suggests structural effects for several of the missense variants (Arg141Trp, Pro194Ser presumably affect ADP binding, Phe341 lying close to the binding site of phosphocholine). Each of the missense variants was expressed in yeast cells and W. Blot suggested expression at the expected molecular weight at comparative levels. The 3 aforementioned variants exhibited reduced catalytic activity (20%, 15%, 50% respectively). NMD is thought to underly the deleterious effect of the frameshift one (not studied). The start-loss variant is expected to result in significantly impaired expression and protein function as eventual utilization of the next possible start codon - occurring at position 123 - would remove 26% of the protein. Chka(-/-) is embryonically lethal in mice, suggesting that complete loss is not compatible with life. Reduction of choline kinase activity by 30% in heterozygous mice did not appear to result in behavioral abnormalities although this was not studied in detail (PMID cited: 18029352). Finally, screening of 1566 mouse lines identified 198 genes whose disruption yields neuroanatomical phenotypes, Chka(+/-) mice being among these (PMID cited: 31371714). There is no associated phenotype in OMIM, Gene2Phenotype or SysID. Overall this gene can be considered for inclusion in the ID and epilepsy panes with green or amber rating (>3 individuals, >3 variants, variant studies, overlapping phenotype of disorders belonging to the same pathway, etc). Consider also inclusion in the microcephaly panel (where available this seemed to be of postnatal onset). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11003 | NDUFA11 | Zornitza Stark Phenotypes for gene: NDUFA11 were changed from to Mitochondrial complex I deficiency, nuclear type 14, MIM#618236 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10999 | NDUFA11 | Zornitza Stark reviewed gene: NDUFA11: Rating: AMBER; Mode of pathogenicity: None; Publications: 18306244, 31074871; Phenotypes: Mitochondrial complex I deficiency, nuclear type 14, MIM#618236; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10863 | NDUFS8 | Zornitza Stark Phenotypes for gene: NDUFS8 were changed from to Mitochondrial complex I deficiency, nuclear type 2 MIM#618222 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10860 | NDUFV1 | Zornitza Stark Phenotypes for gene: NDUFV1 were changed from to Mitochondrial complex I deficiency, nuclear type 4 MIM#618225 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10844 | ATP5O |
Ain Roesley gene: ATP5O was added gene: ATP5O was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATP5O was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ATP5O were set to 34954817 Phenotypes for gene: ATP5O were set to mitochondrial disease, ATP5F1E-related MONDO:0044970 Penetrance for gene: ATP5O were set to Complete Review for gene: ATP5O was set to RED gene: ATP5O was marked as current diagnostic Added comment: Now known as ATP5PO (HGNC) 1 compound het individual with dev delay, muscular hypotonia, ID, dystonia, seizures and neurologic regression Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10844 | ATP5E | Ain Roesley reviewed gene: ATP5E: Rating: GREEN; Mode of pathogenicity: None; Publications: 34954817; Phenotypes: Mitochondrial complex V (ATP synthase) deficiency, nuclear type 3 MIM#614053; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10835 | NDUFS7 | Zornitza Stark Phenotypes for gene: NDUFS7 were changed from to Mitochondrial complex I deficiency, nuclear type 3 MIM#618224 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10832 | NDUFA1 | Zornitza Stark Phenotypes for gene: NDUFA1 were changed from to Mitochondrial complex I deficiency, nuclear type 12 MIM#301020 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10826 | LRPPRC | Zornitza Stark Phenotypes for gene: LRPPRC were changed from to Mitochondrial complex IV deficiency, nuclear type 5, (French-Canadian) MIM#220111 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10823 | LRPPRC | Zornitza Stark reviewed gene: LRPPRC: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 5, (French-Canadian) MIM#220111; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | NDUFV1 | Ain Roesley reviewed gene: NDUFV1: Rating: GREEN; Mode of pathogenicity: None; Publications: 34807224; Phenotypes: Mitochondrial complex I deficiency, nuclear type 4 MIM#618225; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | NDUFS8 | Ain Roesley reviewed gene: NDUFS8: Rating: GREEN; Mode of pathogenicity: None; Publications: 23430795, 9837812, 15159508, 22499348, 20818383, 20819849; Phenotypes: Mitochondrial complex I deficiency, nuclear type 2 MIM#618222; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | NDUFS7 | Ain Roesley reviewed gene: NDUFS7: Rating: GREEN; Mode of pathogenicity: None; Publications: 17604671, 17275378, 10360771; Phenotypes: Mitochondrial complex I deficiency, nuclear type 3 MIM#618224; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | NDUFAF5 | Ain Roesley reviewed gene: NDUFAF5: Rating: GREEN; Mode of pathogenicity: None; Publications: 34797029; Phenotypes: Mitochondrial complex I deficiency, nuclear type 3 MIM#618224; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | NDUFS7 | Ain Roesley reviewed gene: NDUFS7: Rating: GREEN; Mode of pathogenicity: None; Publications: 34797029; Phenotypes: Mitochondrial complex I deficiency, nuclear type 3 MIM#618224; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | NDUFA1 | Ain Roesley reviewed gene: NDUFA1: Rating: GREEN; Mode of pathogenicity: None; Publications: 29506883, 19185523, 17262856, 21596602; Phenotypes: Mitochondrial complex I deficiency, nuclear type 12 MIM#301020; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10812 | LRPPRC | Ain Roesley reviewed gene: LRPPRC: Rating: GREEN; Mode of pathogenicity: None; Publications: 32972427, 26510951, 21266382; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 5, (French-Canadian) MIM#220111; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10793 | CHP1 |
Zornitza Stark gene: CHP1 was added gene: CHP1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: CHP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CHP1 were set to 29379881; 32787936 Phenotypes for gene: CHP1 were set to Spastic ataxia 9, autosomal recessive, MIM #618438 Review for gene: CHP1 was set to GREEN Added comment: 2 different consanguineous families with 2 affected siblings with ataxia (1 paediatric onset, 1 adult onset). 3 of the patients had cerebellar atrophy. WES identified homozygous variants in CHP1 gene in both families (K19del and Arg91Cys), which segregated with the disorder in the family. Decreased CHP1 protein on IHC of cerebellar tissue in family with Arg91Cys variant. In vitro functional expression studies in HEK293 cells showed that the K19del mutation resulted in decreased protein expression, with normal levels of transcript, suggesting defects in protein stability. The mutant protein formed massive protein aggregates in transfected neuronal cell bodies and neurite-like projections, whereas the wildtype protein showed a more uniform distribution. The mutant protein altered CHP1 association into functional complexes and impaired membrane localization of the Na+/H+ transporter NHE1. The findings indicated that the CHP1 mutation likely causes ataxia in an NHE1-dependent manner, resembling the mechanism observed in the Chp1 vacillator mutant mouse. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10561 | ATP5G3 |
Naomi Baker edited their review of gene: ATP5G3: Added comment: Note that HGNC approved gene name is ATP5MC3. PMID: 34636445 reports a missense variant identified in a large single-family pedigree with dystonia and spastic paraplegia. The variant was identified via exome sequencing of the proband and a distant cousin, focussing on variants within the previously determined linkage region. The identical missense variant was also identified in a patient with childhood onset dystonic syndrome and was shown to be de novo. Functional studies of fibroblast cell lines from affected father (HSP) and proband of large family demonstrated decreased complex V function. A drosophila model containing the missense variant had reduced mobility and reduced complex V activity. PMID: 34954817 reports de novo monoallelic missense variants in three individuals, however one of these individuals was reported in above paper. The other two patients were: (1) a-15-year-old girl with milestone delay, pyramidal signs, and generalized dystonia with prominent upper-body involvement, and (2) a 6-year-old boy with delayed psychomotor development, lower-extremity spasticity, and elevated blood lactate levels; Changed rating: GREEN; Changed publications: PMID: 34636445, 34954817 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10558 | ATP5G3 |
Naomi Baker gene: ATP5G3 was added gene: ATP5G3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATP5G3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ATP5G3 were set to PMID: 34636445 Phenotypes for gene: ATP5G3 were set to Dystonia, early-onset, and/or spastic paraplegia, MIM#619681 Review for gene: ATP5G3 was set to AMBER Added comment: Note that new gene name is ATP5MC3. Paper reports the same missense variant identified in a large single-family pedigree with dystonia and spastic paraplegia, and also de novo in a patient with childhood onset dystonic syndrome. Drosophila model with missense variant also studied. Functional studies of fibroblast cells lines from affected father and proband demonstrated decreased complex V function. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10510 | NAA20 |
Zornitza Stark gene: NAA20 was added gene: NAA20 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NAA20 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NAA20 were set to 34230638 Phenotypes for gene: NAA20 were set to Intellectual disability; Microcephaly; Neurodevelopmental disorder MONDO:0700092 Review for gene: NAA20 was set to GREEN Added comment: 2 consanguineous families with 5 affected individuals with developmental delay, intellectual disability, and microcephaly (-2-4SD). Exome and genome sequencing identified 2 different homozygous variants in NAA20 gene (p.Met54Val and p.Ala80Val), and segregated with affected individuals. N-terminal acetyltransferases modify proteins by adding an acetyl moiety to the first amino acid and are vital for protein and cell function. The NatB complex acetylates 20% of the human proteome and is composed of the catalytic subunit NAA20 and the auxiliary subunit NAA25. Both NAA20-M54V and NAA20-A80V were impaired in their capacity to form a NatB complex with NAA25, and in vitro acetylation assays revealed reduced catalytic activities toward different NatB substrates. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10431 | COX15 | Zornitza Stark Phenotypes for gene: COX15 were changed from to Mitochondrial complex IV deficiency, nuclear type 6, MIM# 615119 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10428 | COX15 | Zornitza Stark reviewed gene: COX15: Rating: GREEN; Mode of pathogenicity: None; Publications: 33746038, 32232962, 26959537, 21412973, 12474143, 15235026; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 6, MIM# 615119; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10222 | FOXRED1 | Zornitza Stark Phenotypes for gene: FOXRED1 were changed from to Mitochondrial complex I deficiency, nuclear type 19 MIM#618241 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10206 | FOXRED1 | Ain Roesley reviewed gene: FOXRED1: Rating: GREEN; Mode of pathogenicity: None; Publications: 33613441; Phenotypes: Mitochondrial complex I deficiency, nuclear type 19 MIM#618241; Mode of inheritance: None; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10181 | ADCY5 |
Zornitza Stark edited their review of gene: ADCY5: Added comment: Neurodevelopmental disorder with hyperkinetic movements and dyskinesia (NEDHYD) is an autosomal recessive complex neurologic disorder characterized by severe global developmental delay with axial hypotonia, impaired intellectual development, poor overall growth, and abnormal involuntary hyperkinetic movements, including dystonia, myoclonus, spasticity, and orofacial dyskinesia. It is the most severe manifestation of ADCY5-related dyskinetic disorders. Five individuals from 2 families reported. Autosomal recessive hyperkinetic movement disorder with dyskinesia, myoclonus, chorea, and dystonia-2 (HYDMCD2) is characterized by the onset of abnormal involuntary movements, mainly affecting the limbs and causing walking difficulties, in the first decade. The severity is variable; some patients have orofacial dyskinesia, resulting in speech difficulties, or develop neuropsychiatric features, including anxiety and social withdrawal. Cardiomyopathy has rarely been described and may be a manifestation of the disorder. Eight individuals from 2 families reported.; Changed publications: 22782511, 24700542, 33051786, 32647899, 33704598, 34631954, 28971144, 30975617; Changed phenotypes: Dyskinesia, familial, with facial myokymia, MIM# 606703, MONDO:0011707, Hyperkinetic movement disorder with dyskinesia, myoclonus, chorea, and dystonia-2 (HYDMCD2), MIM#619647, Neurodevelopmental disorder with hyperkinetic movements and dyskinesia (NEDHYD), MIM#619651; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10088 | MEIOB |
Bryony Thompson gene: MEIOB was added gene: MEIOB was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MEIOB was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MEIOB were set to 34794894; 24068956; 31000419; 28206990 Phenotypes for gene: MEIOB were set to Spermatogenic failure 22 MIM#617706; primary ovarian insufficiency Review for gene: MEIOB was set to GREEN Added comment: At least 6 cases in 3 families, plus a mouse model for spermatogenic failure. A single family and a mouse model for POI. PMID: 28206990 - 4 infertile brothers with a homozygous missense variant. PMID: 32741963 - 2 unrelated males with complete spermatocytic arrest and homozygous truncating variants. PMID: 24068956 - infertile male and female null mouse model. PMID: 31000419 - Single family with a homozygous splicing variant in 2 sisters with POI. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10058 | PRRX1 | Zornitza Stark Phenotypes for gene: PRRX1 were changed from to Agnathia-otocephaly complex, MIM# 202650 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10055 | PRRX1 | Zornitza Stark reviewed gene: PRRX1: Rating: GREEN; Mode of pathogenicity: None; Publications: 21294718, 22211708, 22674740, 23444262; Phenotypes: Agnathia-otocephaly complex, MIM# 202650; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10019 | SLIRP |
Belinda Chong gene: SLIRP was added gene: SLIRP was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLIRP was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLIRP were set to 34426662 Phenotypes for gene: SLIRP were set to Mitochondrial encephalomyopathy with complex I and IV deficiency Review for gene: SLIRP was set to RED Added comment: Single Dutch non-consanguineous patient having mitochondrial encephalomyopathy with complex I and complex IV deficiency, whole exome sequencing revealed two compound heterozygous variants (NM_031210.5:c.248_252del; NP_112487.1:p.(Ile83Argfs*10) and NC_000014.8:g.78177003 A > G; NM_031210.5:c.98-178 A > G) in SLIRP. Report SLIRP variants as a novel cause of mitochondrial encephalomyopathy with OXPHOS deficiency Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9979 | SMAD2 |
Melanie Marty commented on gene: SMAD2: PMID: 30157302 - Two distinct phenotypes associated with pathogenic variants in SMAD2: complex congenital heart disease with or without laterality defects and other congenital anomalies, and a late-onset vascular phenotype characterized by arterial aneurysms with connective tissue abnormalities. No genotype/phenotype correlation has been established so far. PMID: 30157302, PMID: 23665959 - 5 individuals reported with the CHD phenotype |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9979 | SMAD2 |
Melanie Marty edited their review of gene: SMAD2: Added comment: PMID: 30157302 - Two distinct phenotypes associated with pathogenic variants in SMAD2: complex congenital heart disease with or without laterality defects and other congenital anomalies, and a late-onset vascular phenotype characterized by arterial aneurysms with connective tissue abnormalities. No genotype/phenotype correlation has been established so far. PMID: 30157302, PMID: 23665959 - 5 individuals reported with the CHD phenotype; Changed publications: 29967133, 30157302, 23665959; Changed phenotypes: Aortic and arterial aneurysmal disease, connective tissue disease, congenital heart disease |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9929 | ACVR1 |
Zornitza Stark changed review comment from: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner. Multiple unrelated families reported. The R206H variant is recurrent.; to: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner. Multiple unrelated families reported. The R206H variant is recurrent. Note variants in this gene are also associated with congenital heart disease, PMID 29089047. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9918 | ACO2 | Zornitza Stark edited their review of gene: ACO2: Added comment: At least 10 unrelated families reported. I am not convinced this gene causes two separate disorders, more likely a spectrum. OA has been reported as an isolated finding in one family, and a feature of a more complex and severe neurological presentation in the rest.; Changed publications: 22405087, 25351951, 30689204, 32519519, 25351951 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9909 | CYP11A1 | Zornitza Stark Phenotypes for gene: CYP11A1 were changed from to Adrenal insufficiency, congenital, with 46XY sex reversal, partial or complete, MIM# 613743 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9906 | CYP11A1 | Zornitza Stark reviewed gene: CYP11A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 12161514, 16705068, 18182448, 28425981; Phenotypes: Adrenal insufficiency, congenital, with 46XY sex reversal, partial or complete, MIM# 613743; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9704 | EFHC1 | Bryony Thompson Added comment: Comment on list classification: ClinGen Epilepsy GCEP gene-disease association curation: Disputed - We have disregarded the very limited functional evidence in light of the complete lack of genetic evidence connecting EFHC1 and epilepsy. In summary, there is convincing evidence disputing the association between EFHC1 and epilepsy. All variants in EFHC1 associated with epilepsy have contradictory evidence for disease association (too common in ExAC/gnomAD, with minor allele frequencies (MAF) of 2.857e-5 to 0.05973). More evidence is needed to either support or refute the role EFHC1 plays in this disease. Classification - 07/27/2018, reviewed Sept 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9682 | BMPER |
Zornitza Stark commented on gene: BMPER: Perinatal lethal skeletal dysplasia. The primary skeletal characteristics include small chest, abnormal vertebral segmentation, and posterior rib gaps containing incompletely differentiated mesenchymal tissue. Consistent craniofacial features include ocular hypertelorism, epicanthal folds, depressed nasal bridge with short nose, and low-set ears. The most commonly described extraskeletal finding is nephroblastomatosis with cystic kidneys, but other visceral findings have been described in some cases. At least 5 unrelated families reported. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9586 | KSR2 |
Zornitza Stark gene: KSR2 was added gene: KSR2 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: KSR2 was set to Other Publications for gene: KSR2 were set to 29273807; 24209692 Phenotypes for gene: KSR2 were set to Obesity Review for gene: KSR2 was set to RED Added comment: PMID: 24209692 Targeted deletion of Ksr2 leads to obesity in mice, suggesting a role in energy homeostasis. PMID: 29273807 GWAS identified KSR2 (13 genes studied) implicated in extreme obesity. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9563 | KPNA3 |
Ain Roesley gene: KPNA3 was added gene: KPNA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KPNA3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KPNA3 were set to 34564892 Phenotypes for gene: KPNA3 were set to infantile onsetHereditary Spastic Paraplegia Penetrance for gene: KPNA3 were set to Complete Review for gene: KPNA3 was set to GREEN gene: KPNA3 was marked as current diagnostic Added comment: 8 affecteds from 5 families with infantile-onset pure HSP all missense variants, in vitro functional demonstrated reduced cargo binding Noted that 1 individual had 2 de novo missense in the gene and though 1 is less deleterious than the other in the functional assays, authors were not able to rule out either one as a VUS Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9537 | BRCA2 |
Krithika Murali gene: BRCA2 was added gene: BRCA2 was added to Mendeliome. Sources: Expert list,Literature Mode of inheritance for gene: BRCA2 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: BRCA2 were set to Fanconi anemia, complementation group D1 - MIM# 605724 Review for gene: BRCA2 was set to GREEN Added comment: Well-established gene disease association Sources: Expert list, Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9473 | LRIT3 | Zornitza Stark Phenotypes for gene: LRIT3 were changed from to Night blindness, congenital stationary (complete), 1F, autosomal recessive, MIM# 615058 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9470 | LRIT3 | Zornitza Stark reviewed gene: LRIT3: Rating: GREEN; Mode of pathogenicity: None; Publications: 23246293, 24598786, 31578364, 27428514; Phenotypes: Night blindness, congenital stationary (complete), 1F, autosomal recessive, MIM# 615058; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9470 | NYX | Zornitza Stark Phenotypes for gene: NYX were changed from to Night blindness, congenital stationary (complete), 1A, X-linked MIM#310500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9467 | NYX | Zornitza Stark reviewed gene: NYX: Rating: GREEN; Mode of pathogenicity: None; Publications: 11062471, 11062472, 16670814, 23714322, 34064005, 34165036; Phenotypes: Night blindness, congenital stationary (complete), 1A, X-linked MIM#310500; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9467 | GRM6 | Zornitza Stark Phenotypes for gene: GRM6 were changed from to Night blindness, congenital stationary (complete), 1B, autosomal recessive 257270 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9464 | GRM6 | Zornitza Stark reviewed gene: GRM6: Rating: GREEN; Mode of pathogenicity: None; Publications: 22008250; Phenotypes: Night blindness, congenital stationary (complete), 1B, autosomal recessive 257270; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9461 | GPR179 | Zornitza Stark Phenotypes for gene: GPR179 were changed from to Night blindness, congenital stationary (complete), 1E, autosomal recessive (MIM#614565) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9458 | GPR179 | Zornitza Stark reviewed gene: GPR179: Rating: GREEN; Mode of pathogenicity: None; Publications: 22325361; Phenotypes: Night blindness, congenital stationary (complete), 1E, autosomal recessive (MIM#614565); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9392 | OSTC |
Belinda Chong gene: OSTC was added gene: OSTC was added to Mendeliome. Sources: Literature Mode of inheritance for gene: OSTC was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: OSTC were set to PMID: 32267060 Phenotypes for gene: OSTC were set to Oligosaccharyltransferase complex-congenital disorders of glycosylation Review for gene: OSTC was set to RED Added comment: A patient with microcephaly, dysmorphic facies, congenital heart defect, focal epilepsy, infantile spasms, skeletal dysplasia, and a type 1 serum transferrin isoelectrofocusing due to a novel CDG caused by a homozygous variant in the oligosaccharyltransferase complex noncatalytic subunit (OSTC) gene involved in glycosylation and confirmed by serum transferrin electrophoresis. Patient was homozygous for a canonical splice variant (c.431 + 1G > A), mRNA from patient's fibroblast showed mRNA transcript reduced 80-90%/aberrant splicing - predicting NMD. GnomAD - 10 hets, 0 hom Sources: Literature Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9384 | L3MBTL1 |
Zornitza Stark gene: L3MBTL1 was added gene: L3MBTL1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: L3MBTL1 was set to MONOALLELIC, autosomal or pseudoautosomal, maternally imprinted (paternal allele expressed) Publications for gene: L3MBTL1 were set to 23543057; 15123827; 30794780 Phenotypes for gene: L3MBTL1 were set to Affected tissue: myeloid lineages; Phenotype resulting from under expression: lymphoid malignancy Review for gene: L3MBTL1 was set to RED Added comment: Germline variation in this imprinted gene is not currently associated with disease. Somatic deletions of 20q are associated with chronic myeloid malignancies. Aziz et al showed that a single heterozygous 20q deletion consistently resulted in the complete loss of expression of the imprinted genes L3MBTL1 and SGK2, indicative of a pathogenetic role for loss of the active paternally inherited locus. Concomitant loss of both L3MBTL1 and SGK2 dysregulated erythropoiesis and megakaryopoiesis. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9379 | OOEP |
Zornitza Stark gene: OOEP was added gene: OOEP was added to Mendeliome. Sources: Literature Mode of inheritance for gene: OOEP was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: OOEP were set to 29574422 Phenotypes for gene: OOEP were set to Multi locus imprinting disturbance in offspring Review for gene: OOEP was set to RED Added comment: Single report of biallelic variants in this gene in a mother of a child with Multi locus imprinting disturbance (MLID) and a transient neonatal diabetes mellitus phenotype. This gene encodes part of the subcortical maternal complex (SCMC). Other genes in this group act as 'maternal effect' genes and are associated with early embryonic arrest, recurrent hydatiform mole and MLID in offspring. As is the case for other genes encoding components of the SCMC, the pathogenicity of variants can be difficult to establish as reproductive outcomes are not recorded in genomic databases and variants may be listed in population databases as they are not classed as pathogenic in males or women with no reproductive history. Functional studies of genes encoding components of the SCMC are limited as their expression is restricted to the oocyte and early embryo. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9378 | ZNF445 |
Zornitza Stark gene: ZNF445 was added gene: ZNF445 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZNF445 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ZNF445 were set to 34039421; 30602440; 30846001 Phenotypes for gene: ZNF445 were set to Temple syndrome; Multi locus imprinting disturbance (MLID) Review for gene: ZNF445 was set to RED Added comment: Single report (Kagami 2021) of a child with Temple syndrome and MLID found to have a novel homozygous truncating variant in ZNF445. ZNF445 has been shown to play a critical role in the maintenance of postfertilisation methylation imprints (Takahashi 2019). Mechanism and parent of origin effects remain uncertain. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9366 | NLRP5 |
Zornitza Stark edited their review of gene: NLRP5: Added comment: 'Maternal effect gene' Part of the subcortical maternal complex Report of five mothers carrying either monoallelic or biallelic variants in NLRP5, who had both unaffected offspring and offspring with BWS-MLID (Doherty 2015). Report of one family where the mother carried biallelic variants in NLRP5, had one offspring with BWS, one unaffected offspring and multiple miscarriages (Sparago 2019). Reports of at least three unrelated individuals with recurrent early embryonic arrest carrying biallelic variants in NLRP5. Functional work suggesting protein degradation in affected human cell lines (Mu 2019, Xu 2020).; Changed rating: GREEN; Changed publications: 32222962, 31829238, 30877238, 26323243, 34440388; Changed phenotypes: Early embryonic arrest, Multi locus imprinting disturbance in offspring; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9347 | USP48 |
Eleanor Williams gene: USP48 was added gene: USP48 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: USP48 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: USP48 were set to 34059922 Phenotypes for gene: USP48 were set to non-syndromic hearing loss; nonsyndromic genetic deafness, MONDO:0019497 Penetrance for gene: USP48 were set to Incomplete Review for gene: USP48 was set to GREEN Added comment: PMID: 34059922 - Bassani et al 2021 - 3 cases reported with variants in USP48 and non syndromic hearing loss. They first analysed 4-generation Italian family with 6 individuals with hearing loss. The only rare variant segregating with the disease was a missense variant in USP48 (NM_032234.7:c.1216G > A, NP_115612.4:p.(Gly406Arg)). The variant is present in GnomAD v2.1.1 with a minor allele frequency (MAF) of 6.7 × 10−5 (17 allele out of 251 304 with no homozygotes). They also observed one hearing individual in the family who was heterozygous for the variant, suggesting incomplete penetrance. In a Dutch family the found by exome sequencing a missense variant in USP48 (NM_032236.7:c.2215_2216delinsTT, NP_115612.4:p.(Thr739Leu)). The probands mother and uncle were also affected by no sequence data was available for analysis. In a French family a proband is reported with right profound sensorineural hearing impairment (at 12 months), but normal left hearing (at 6 years old). The patient is heterozygote for a de novo splice variant in USP48 (NM_032236.7:c.3058 + 2 T > C, NP_115612.4:p.?;) which is not found in GnomAD and is predicted to result in a frameshift resulting in either NMD or a truncated protein. In functional experiments they showed that the two missense variants found in the Italian and Dutch families, and a shortened protein as predicted for the variant found in the French variant, showed an impaired ability to cleave tetra-ubiquitin into tri-, di- and mono-ubiquitin. Using immunohistology, they show that the human USP48 protein is present in fetal inner ear specimens. In addition zebrafish lacking usp48 showed a significant decrease of auditory response in acoustic startle response assays at 600 and 800 Hz wavelengths. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9297 | ABHD16A |
Lucy Spencer gene: ABHD16A was added gene: ABHD16A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ABHD16A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ABHD16A were set to PMID: 34587489 Phenotypes for gene: ABHD16A were set to Spastic paraplegia Review for gene: ABHD16A was set to GREEN Added comment: 11 individuals from 6 families with a complicated form of hereditary spastic paraplegia who carry bi-allelic deleterious variants in ABHD16A. Affected individuals present with a similar phenotype consisting of global developmental delay/intellectual disability, progressive spasticity affecting the upper and lower limbs, and corpus callosum and white matter anomalies. Immunoblot analysis on extracts from fibroblasts from four affected individuals demonstrated little to no ABHD16A protein levels compared to controls. In 5 of the families the affected members were homozygous, 3 of these families were consanguineous. 2 families have the same variant- both families are French-Canadian. 4 missense variants, 1 frameshift, 1 nonsense. From PMID: 34587489 Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9256 | MPL | Zornitza Stark Phenotypes for gene: MPL were changed from Myelofibrosis with myeloid metaplasia, somatic, MIM#2544503; Thrombocythemia 2, MIM#601977, AD, SMu; Thrombocytopenia, congenital amegakaryocytic, MIM#604498, AR to Myelofibrosis with myeloid metaplasia, somatic, MIM#254450; Thrombocythemia 2, MIM#601977, AD, SMu; Thrombocytopenia, congenital amegakaryocytic, MIM#604498, AR | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9254 | BCS1L | Zornitza Stark Phenotypes for gene: BCS1L were changed from Bjornstad syndrome MIM#262000; GRACILE syndrome, MIM#603358; Mitochondrial complex III deficiency, nuclear type MIM#1124000 to Bjornstad syndrome MIM#262000; GRACILE syndrome, MIM#603358; Mitochondrial complex III deficiency, nuclear type MIM#112400 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9250 | ATP6V0C |
Zornitza Stark gene: ATP6V0C was added gene: ATP6V0C was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATP6V0C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ATP6V0C were set to 33190975; 33090716 Phenotypes for gene: ATP6V0C were set to Epilepsy; Intellectual Disability; microcephaly Review for gene: ATP6V0C was set to AMBER Added comment: 9 individuals reported with deletions and ID/seizures/microcephaly, minimum overlapping region implicates ATP6V0C as the causative gene. Single case report of de novo SNV and ID/seizures. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9240 | PRR12 | Zornitza Stark Phenotypes for gene: PRR12 were changed from Intellectual disability; Iris abnormalities; Complex microphthalmia to Neuroocular syndrome, MIM#619539; Intellectual disability; Iris abnormalities; Complex microphthalmia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9239 | PRR12 | Zornitza Stark edited their review of gene: PRR12: Changed phenotypes: Neuroocular syndrome, MIM#619539, Intellectual disability, Iris abnormalities, Complex microphthalmia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9170 | ERGIC1 |
Zornitza Stark gene: ERGIC1 was added gene: ERGIC1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ERGIC1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ERGIC1 were set to 28317099; 34037256 Phenotypes for gene: ERGIC1 were set to Arthrogryposis multiplex congenita 2, neurogenic type; OMIM # 208100 Review for gene: ERGIC1 was set to AMBER Added comment: Reinstein et al. (2018) used WES in a large consanguineous Israeli Arab kindred consisting of 16 patients affected with the neurogenic type of arthrogryposis multiplex congenita. They identified a homozygous missense (V98E) mutation in ERGIC1 gene, which segregated with the disorder in the kindred, and was not found in the ExAC database or in 212 ethnically matched controls. Functional studies of the variant and studies of patient cells were not performed. ERGIC1 encodes a cycling membrane protein which has a possible role in transport between endoplasmic reticulum and Golgi. Marconi et al (2021) used genome sequencing in a consanguineous family with 2 affected siblings presenting congenital arthrogryposis and some facial dysmorphism. They identified a homozygous 22.6 Kb deletion encompassing the promoter and first exon of ERGIC1. mRNA quantification showed the complete absence of ERGIC1 expression in the two affected siblings and a decrease in heterozygous parents. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9134 | MTR | Zornitza Stark Phenotypes for gene: MTR were changed from to Homocystinuria-megaloblastic anaemia, cblG complementation type, MIM# 250940 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9131 | MTR | Zornitza Stark reviewed gene: MTR: Rating: GREEN; Mode of pathogenicity: None; Publications: 8968736, 8968737, 9683607, 12068375; Phenotypes: Homocystinuria-megaloblastic anaemia, cblG complementation type, MIM# 250940; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9088 | IFIH1 |
Sarah Pantaleo changed review comment from: Rare, likely loss-of-functions IFIH1 variants identified in eight independent probands with Very Early Onset Inflammatory Bowel Disease (VEOIBD) from a combined cohort of 42 children. IFIH1 variants were significantly enriched in children with VEOIBD as compared to controls (p=0.007). In one case of neonatal-onset IBD, a homozygous truncating variant was identified. seven carriers of LoF variants (three of whom have a second hypomorphic missense variant). Luciferase reporter assays employed to assess MDA5 activity (encoded by IFIH1). In three cases, the functional studies demonstrated that the second missense variant either did not affect protein function or was in cis with the LoF variant.; to: IFIH1 encodes MDA5, a key cystolic sensor for viral nucleic acids. Rare, likely loss-of-functions IFIH1 variants identified in eight independent probands with Very Early Onset Inflammatory Bowel Disease (VEOIBD) from a combined cohort of 42 children. IFIH1 variants were significantly enriched in children with VEOIBD as compared to controls (p=0.007). In one case of neonatal-onset IBD, a homozygous truncating variant was identified. There were seven carriers of LoF variants identified (range of onset 6 months to 6 years of age). In three of these cases, a second hypomorphic missense variant was identified. Luciferase reporter assays were employed to assess MDA5 activity. In some cases, the second missense variant was either proven to not affect protein function or was in cis with the LoF variant. Complete and partial MDA5 deficiency is associated with VEOIBD with variable penetrance and expressivity, suggesting a role for impaired intestinal viral sensing in IBD pathogenesis. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9088 | IFIH1 |
Sarah Pantaleo changed review comment from: Rare, likely loss-of-functions IFIH1 variants identified in eight patients with Very Early Onset Inflammatory Bowel Disease (VEOIBD) with VEOIBD from a combined cohort of 42 children. One homozygous truncating variant in a neonate from a consanguineous family, seven carriers of LoF variants (three of whom also have a second hypomorphic missense variant). Luciferase reporter assays employed to assess MDA5 activity (encoded by IFIH1). In three cases, the functional studies demonstrated that the second missense variant either did not affect protein function or was in cis with the LoF variant.; to: Rare, likely loss-of-functions IFIH1 variants identified in eight independent probands with Very Early Onset Inflammatory Bowel Disease (VEOIBD) from a combined cohort of 42 children. IFIH1 variants were significantly enriched in children with VEOIBD as compared to controls (p=0.007). In one case of neonatal-onset IBD, a homozygous truncating variant was identified. seven carriers of LoF variants (three of whom have a second hypomorphic missense variant). Luciferase reporter assays employed to assess MDA5 activity (encoded by IFIH1). In three cases, the functional studies demonstrated that the second missense variant either did not affect protein function or was in cis with the LoF variant. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9075 | UBE2U |
Ee Ming Wong gene: UBE2U was added gene: UBE2U was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UBE2U was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: UBE2U were set to PMID: 33776059 Phenotypes for gene: UBE2U were set to Retinoschisis; cataracts; learning disabilities; developmental delay Penetrance for gene: UBE2U were set to Complete Review for gene: UBE2U was set to RED gene: UBE2U was marked as current diagnostic Added comment: - one missense UBE2U variant identified in one family with four other affected individuals (includes proband) - in silico analyses predicts the UBE2U variant to be damaging - no functional - another STUM missense variant identified in the same family predicted to be benign - additional clinical assessment indicated that the family shared some systemic dysmorphisms and learning disabilities similar to RIDDLE syndrome Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9067 | GLIS1 |
Seb Lunke changed review comment from: Functional studies in KO mice show increased intra-ocular pressure (IOT) caused by defects in the ocular drainage system. IOT is frequently associated with Glaucoma, however mice were not investigated for glaucoma, and no patients described. Sources: Literature; to: Functional studies in KO mice show increased intra-ocular pressure (IOT) caused by defects in the ocular drainage system. IOT is frequently associated with Glaucoma, however mice were not investigated for glaucoma, and no patients described. The authors did show dysregulation of GLIS1 in a human cell line study, and performed linkage analysis suggesting an association of the GLIS1 locus with Glaucoma in UK biobank samples. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8980 | NIID |
Bryony Thompson STR: NIID was added STR: NIID was added to Mendeliome. Sources: Literature Mode of inheritance for STR: NIID was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: NIID were set to 31178126; 31332381; 31819945; 33887199; 33943039; 32250060; 31332380; 32852534; 32989102; 34333668 Phenotypes for STR: NIID were set to Neuronal intranuclear inclusion disease MIM#603472; Oculopharyngodistal myopathy 3 MIM#619473; Tremor, hereditary essential, 6 MIM#618866 Review for STR: NIID was set to GREEN STR: NIID was marked as clinically relevant Added comment: NM_001364012.2:c.-164GGC[X] Expanded repeat in NOTCH2NLC sequence is (GGC)9(GGA)2(GGC)2. Large number of families and sporadic cases reported with expansions, with a range of neurodegenerative phenotypes, including: dementia, Parkinsonism/tremor, peripheral neuropathy, leukoencephalopathy, myopathy, motor neurone disease. Normal repeat range: 4-40, 1 control had 61 repeats and may have been a presymptomatic carrier. Intermediate range: 41-60 identified in Parkinson's disease Pathogenic repeat range: >=60-520 Mechanism of disease is translation of repeat expansion into a toxic polyglycine protein, identified in both mouse models and tissue samples from affected individuals. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8953 | RFX5 | Zornitza Stark Phenotypes for gene: RFX5 were changed from to Bare lymphocyte syndrome, type II, complementation group C MIM# 209920; Bare lymphocyte syndrome, type II, complementation group E MIM# 209920 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8950 | RFX5 | Zornitza Stark reviewed gene: RFX5: Rating: GREEN; Mode of pathogenicity: None; Publications: 9401005, 29527204, 30170160, 7990905, 8642248, 7699327; Phenotypes: Bare lymphocyte syndrome, type II, complementation group C MIM# 209920, Bare lymphocyte syndrome, type II, complementation group E MIM# 209920; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8932 | GLI2 |
Zornitza Stark changed review comment from: Culler-Jones syndrome (CJS) is characterized by hypopituitarism, mainly growth hormone deficiency, and/or postaxial polydactyly. The phenotype is highly variable, and some individuals may have midline facial defects and developmental delay. The disorder shows incomplete penetrance and variable expressivity. Multiple families reported, short stature is a feature as a result of GH deficiency. Variants in GLI2 are also associated with HPE, at least 5 families reported. Short stature is observed more rarely, as a result of midline defect.; to: Culler-Jones syndrome (CJS) is characterized by hypopituitarism, mainly growth hormone deficiency, and/or postaxial polydactyly. The phenotype is highly variable, and some individuals may have midline facial defects and developmental delay. The disorder shows incomplete penetrance and variable expressivity. Multiple families reported. Variants in GLI2 are also associated with HPE, at least 5 families reported. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8834 | RNF220 |
Zornitza Stark gene: RNF220 was added gene: RNF220 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RNF220 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RNF220 were set to 33964137; 10881263 Phenotypes for gene: RNF220 were set to Leukodystrophy; CNS hypomyelination; Ataxia; Intellectual disability; Sensorineural hearing impairment; Elevated hepatic transaminases; Hepatic fibrosis; Dilated cardiomyopathy; Spastic paraplegia; Dysarthria; Abnormality of the corpus callosum Review for gene: RNF220 was set to GREEN Added comment: Sferra et al (2021 - PMID: 33964137) provide extensive evidence that biallelic RNF220 mutations cause a disorder characterized by hypomyelinating leukodystrophy, ataxia (9/9 - onset 1-5y), borderline intellectual functioning (3/9) / intellectual disability (5/9 - in most cases mild), sensorineural deafness (9/9) with complete hearing loss in the first decade of life, hepatopathy (9/9) with associated periportal fibrosis, and dilated cardiomyopathy (9/9) which was fatal. Other neurologic manifestations apart from ataxia incl. hyperreflexia (8/8), spastic paraplegia (9/9), dysarthria (9/9), peripheral neuropathy (4/9), seizures in one case (1/9). Upon brain MRI there was thin corpus callosum (9/9) or cerebellar atrophy in some (2/9). The authors identified homozygosity for 2 recurrent missense RNF220 variants in affected members belonging to these 5 broad consanguineous pedigrees (7 families), namely NM_018150.4:c.1094G>A / p.Arg365Gly in 4 Roma families in the context of a shared haplotype (/founder effect) as well as c.1088G>A / p.Arg363Gly in a large pedigree from southern Italy initially reported by Leuzzi et al (2000 - PMID: 10881263). Extensive segregation analyses were carried out including several affected and unaffected members. RNF220 encodes ring finger protein 220, which functions as an E3 ubiquitin ligase. Previous studies have shown among others a role in modulation of Sonic hedgehog/GLI signaling and cerebellar development Evidence for the role of RNF220 included relevant expression, localization within the cell, interaction partners (lamin B1, 20S proteasome), similarities with other laminopathies in terms of phenotype, etc : *RNF220 has a relevant expression pattern in CNS (based on qRT-PCR analyses in human brain, cerebellum, cerebral cortex / mRNA levels in human fetal CNS with higher expression in cerebellum, spinal cord and cortex / previous GTEx data / protein levels in mouse CNS) *The protein displays nuclear localization based on iPSC cells differentiated to motor neurons (also supported by data from the Human Protein Atlas). Transfection of COS-1 cells demonstrated localization primarily to the nucleus (as also previously demonstrated in HEK293T cells) in vesicle like structures with ASF2/SF2 colocalization suggesting enrichment in nuclear speckles. There was also partial co-distribution with the 20S proteasome. R363Q and R365Q additionally coalesced in the cytoplasm forming protein aggregates/inclusions. *Immunofluorescence studies in patient fibroblasts also confirmed abnormal increase of the protein in the cytoplasm and increased fluorescence with the 20S proteasome. *Proteomic identification of RNF220-interacting proteins in transfected HEK293T cells demonstrated enrichment for all members of the lamin protein family (incl . lamin B1, AC, B2). *RNAi-mediated downregulation of RNF222 in Drosophila suggested altered subcellular localization and accumulation of the fly orthologue for human lamin B1. *Immunoprecipitation of lamin B1 from the nuclear matrix of cerebellar cells suggested significant interaction of endogenous lamin B1 with RNF220, while transfection studies in HEK293T cells for wt/mt suggested reduced binding to endogenous lamin B1 for RNF220 mt compared to wt (more prominent for R365Q). RNF220 mutants also reduced ubiquitination of nuclear lamin B1 compared to wt. *Patient fibroblasts immunostained with different nuclear envelope markers displayed abnormal nuclear shapes with multiple invaginations and lobulations, findings also observed in laminopathies. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8824 | PLXNA2 |
Zornitza Stark gene: PLXNA2 was added gene: PLXNA2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLXNA2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PLXNA2 were set to 34327814 Phenotypes for gene: PLXNA2 were set to Intellectual disability; Abnormality of the face; Failure to thrive; Abnormal heart morphology Review for gene: PLXNA2 was set to AMBER Added comment: Altuame et al (2021 - PMID: 34327814) describe 3 individuals from 2 consanguineous Arab families with biallelic PLXNA2 variants. The index patient from the 1st family presented with CHD (hypoplastic right ventricle, ASD), DD and moderate ID (IQ of 40), failure to thrive as well as some dysmorphic features (obtuse mandibular angle, mild overbite, synophrys with downslanting p-f, strabismus, etc). There were additional features (eg. postaxial polydactyly) which were found in other affected and unaffected family members. Exome sequencing with autozygome analysis revealed homozygosity for a PLXNA2 stopgain variant (NM_025179:c.3603C>A / p.(Cys1201*)). Sanger confirmation was carried out and segregation analyses confirmed carrier status of the unaffected parents and a sib as well as a brother homozygous for the same variant. Clinical evaluation of the latter, following this finding revealed borderline intellectual functioning, ADHD, failure to thrive. There was no mandibular anomaly or overbite and no clinical evidence of CHD (no echo performed). The index patient from the 2nd consanguineous family was evaluated for ID (IQ of 63), with previous borderline motor development, ADHD and some dysmorphic features (obtuse mandibular angle and overbite). There was no clinical evidence of CHD (no echo performed). Exome sequencing with autozygosity mapping revealed a homozygous missense PLXNA2 variant (c.3073G>A / p.(Asp1025Asn), present only once in gnomAD (htz), with rather non-concordant in silico predictions SIFT 0.22, PolyPhen 0.682 and CADD 23.5. The aa was however highly conserved. Segregation analysis confirmed carrier state of the parents and 2 unaffected sibs, with a 3rd sib homozygous for the wt allele. As the authors discuss: *PLXNA2 belongs to the plexin family of genes, encoding transmbembrane proteins functioning as semaphorin receptors. It has predominant expression in neural tissue. The protein is thought to bind semaphorin-3A, -3C or -5 followed by plexin A2 dimerization, activation of its GTPase-activating protein domain, negative regulation of Rap1B GTPase and initiation of a signal transduction cascade mediating axonal repulsion/guidance, dendritic guidance, neuronal migration. *Murine Plxna2 knockout models display structural brain defects. In addition they display congenital heart defects incl. persistent truncus arteriosus and interrupted aortic arch. *Rare CNVs in adult humans with tetralogy of Fallot have suggested a potential role of PLXNA2 in cardiac development and CHD. *Expression and the role of PLXNA2 in human chondrocytes as well as a GWAS in 240 japanese patients with mandibular prognathism where PLXNA2 was suggested as a susceptibility locus. Overall, the authors recognize some common features (as for cognitive functioning, some dysmorphic features incl. obtuse mandibular angle and overbite in 2 unrelated subjects, failure to thrive 3/3) and provide plausible explanations for the variability / discordance of others eg: - Cyanotic heart disease explaining discordance in cognitive outcome among sibs - Incomplete penetrance for CHD (and/or ID or mandibular anomaly) as for few AR disorders and/or - Additional pathogenic variants possibly explaining the CHD in the first subject. There is no associated phenotype in OMIM or G2P. SysID includes PLXNA2 among the candidate ID genes. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8807 | VPS50 |
Zornitza Stark gene: VPS50 was added gene: VPS50 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: VPS50 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: VPS50 were set to 34037727 Phenotypes for gene: VPS50 were set to Neonatal cholestatic liver disease; Failure to thrive; Profound global developmental delay; Postnatal microcephaly; Seizures; Abnormality of the corpus callosum Review for gene: VPS50 was set to AMBER Added comment: Schneeberger et al (2021 - PMID: 34037727) describe the phenotype of 2 unrelated individuals with biallelic VPS50 variants. Common features included transient neonatal cholestasis, failure to thrive, severe DD with failure to achieve milestones (last examination at 2y and 2y2m respectively), postnatal microcephaly, seizures (onset at 6m and 25m) and irritability. There was corpus callosum hypoplasia on brain imaging. Both individuals were homozygous for variants private to each family (no/not known consanguinity applying to each case). The first individual was homozygous for a splicing variant (NM_017667.4:c.1978-1G>T) and had a similarly unaffected sister deceased with no available DNA for testing. The other individual was homozygous for an in-frame deletion (c.1823_1825delCAA / p.(Thr608del)). VPS50 encodes a critical component of the endosome-associated recycling protein (EARP) complex, which functions in recycling endocytic vesicles back to the plasma membrane [OMIM based on Schindler et al]. The complex contains VPS50, VPS51, VPS52, VPS53, the three latter also being components of GARP (Golgi-associated-retrograde protein) complex. GARP contains VPS54 instead of VPS50 and is required for trafficking of proteins to the trans-golgi network. Thus VPS50 (also named syndetin) and VPS54 function in the EARP and GARP complexes, to define directional movement of their endocytic vesicles [OMIM based on Schindler et al]. The VPS50 subunit is required for recycling of the transferrin receptor. As discussed by Schneeberger et al (refs provided in text): - VPS50 has a high expression in mouse and human brain as well as throughout mouse brain development. - Mice deficient for Vps50 have not been reported. vps50 knockdown in zebrafish results in severe developmental defects of the body axis. Knockout mice for other proteins of the EARP/GARP complex (e.g. Vps52, 53 and 54) display embryonic lethality. Studies performed by Schneeberger et al included: - Transcript analysis for the 1st variant demonstrated skipping of ex21 (in patient derived fabriblasts) leading to an in frame deletion of 81 bp (r.1978_2058del) with predicted loss of 27 residues (p.Leu660_Leu686del). - Similar VPS50 mRNA levels but significant reduction of protein levels (~5% and ~8% of controls) were observed in fibroblasts from patients 1 and 2. Additionally, significant reductions in the amounts of VPS52 and VPS53 protein levels were observed despite mRNA levels similar to controls. Overall, this suggested drastic reduction of functional EARP complex levels. - Lysosomes appeared to have similar morphology, cellular distribution and likely unaffected function in patient fibroblasts. - Transferrin receptor recycling was shown to be delayed in patient fibroblasts suggestive of compromise of endocytic-recycling function. As the authors comment, the phenotype of both individuals with biallelic VPS50 variants overlaps with the corresponding phenotype reported in 15 subjects with biallelic VPS53 or VPS51 mutations notably, severe DD/ID, microcephaly and early onset epilepsy, CC anomalies. Overall, for this group, they propose the term "GARP and/or EARP deficiency disorders". There is no VPS50-associated phenotype in OMIM or G2P. SysID includes VPS50 among the ID candidate genes. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8741 | TCF7L2 |
Zornitza Stark changed review comment from: 2 reviews Konstantinos Varvagiannis (Other) I don't know Dias et al (2021 - PMID: 34003604) describe the phenotype of 11 unrelated individuals harboring de novo missense/truncating TCF7L2 variants. Features included DD in childhood (motor delay in 8/11, speech delay in 11/11), intellectual abilities ranging from average cognitive functioning to mild/moderate ID (the latter observed in 5/11), myopia (6/11) , dysmorphic features, variable orthopedic findings, and neuropsychiatric comorbidities incl. ASD (4/11) / ADHD (4/11). One additional (12th) individual was excluded from this summary due to concurrent diagnosis of hypoxic-ischemic injury. TCF7L2 on 10q25 encodes transcription factor 7-like 2, a high mobility group (HMG) box-containing transcription factor. As the authors discuss, the protein mediates canonical Wnt signaling. Secreted Wnt proteins lead to release of beta-catenin (CTNNB1) which after translocation to the nucleus acts with DNA-binding factors incl. TCF7L2 to turn on Wnt-responsive target genes. As a result TCF7L2 acts with beta-catenin as a switch for transcriptional regulation. Multiple alternative spliced TCF7L2 transcripts mediate it's function and specificity of transcriptional repertoire in a variety of tissues and contexts. Dias et al provide references for its role in nervous system development incl. neurogenesis and thalamic development. Variants in all cases occurred as de novo events with pLoF (stopgain, frameshift, splicing) ones predicted to lead to NMD. Missense variants occurred in all cases in or adjacent to the HMG box domain [aa 350-417]. 5 different missense variants affecting 3 residues were reported incl. c.1142A>C, c.1143C>G (leading to Asn381Thr/Lys respectively), c.1250G>T (Trp417Leu), c.1267T>C, c.1268A>G (leading to Tyr423His/Cys) [NM_001146274.1]. The gene has a pLI of 0.99-1 gnomAD/ExAC while there is a region of missense constraint encompassing the HMG box domain (the latter is an evolutionary conserved region mediating interactions with DNA). No phenotypic differences were observed among individuals with pLoF and missense SNVs, and haploinsufficiency is presumed to be the underlying mechanism. There are no variant or other studies performed, nor any animal models discussed. In supplementary table 2, the authors provide several references to previous large scale sequencing studies with brief/incomplete descriptions of individuals de novo TCF7L2 variants and neurodevelopmental disorder (ID/ASD - Iossifov, De Rubeis, Lelieveld, McRae/DDD study and many other Refs). Heterozygous TCF7L2 variants are thought to confer susceptibility to type diabetes mellitus (MIM 125853). Individuals reported by Dias et al did not have endocrine abnormalities including DM. A study by Roychowdhury et al (2021 - PMID: 34265237) suggests that regulatory variants in TCF7L2 are associated with thoracic aneurysm. There is no other associated phenotype (notably NDD) in OMIM. G2P includes TCF7L2 in its DD panel (Disease : TC7L2-related DD, Confidence:confirmed, Monoallelic, LoF). SysID includes this gene within the autism candidate genes and current primary ID genes.; to: Dias et al (2021 - PMID: 34003604) describe the phenotype of 11 unrelated individuals harboring de novo missense/truncating TCF7L2 variants. Features included DD in childhood (motor delay in 8/11, speech delay in 11/11), intellectual abilities ranging from average cognitive functioning to mild/moderate ID (the latter observed in 5/11), myopia (6/11) , dysmorphic features, variable orthopedic findings, and neuropsychiatric comorbidities incl. ASD (4/11) / ADHD (4/11). One additional (12th) individual was excluded from this summary due to concurrent diagnosis of hypoxic-ischemic injury. TCF7L2 on 10q25 encodes transcription factor 7-like 2, a high mobility group (HMG) box-containing transcription factor. As the authors discuss, the protein mediates canonical Wnt signaling. Secreted Wnt proteins lead to release of beta-catenin (CTNNB1) which after translocation to the nucleus acts with DNA-binding factors incl. TCF7L2 to turn on Wnt-responsive target genes. As a result TCF7L2 acts with beta-catenin as a switch for transcriptional regulation. Multiple alternative spliced TCF7L2 transcripts mediate it's function and specificity of transcriptional repertoire in a variety of tissues and contexts. Dias et al provide references for its role in nervous system development incl. neurogenesis and thalamic development. Variants in all cases occurred as de novo events with pLoF (stopgain, frameshift, splicing) ones predicted to lead to NMD. Missense variants occurred in all cases in or adjacent to the HMG box domain [aa 350-417]. 5 different missense variants affecting 3 residues were reported incl. c.1142A>C, c.1143C>G (leading to Asn381Thr/Lys respectively), c.1250G>T (Trp417Leu), c.1267T>C, c.1268A>G (leading to Tyr423His/Cys) [NM_001146274.1]. The gene has a pLI of 0.99-1 gnomAD/ExAC while there is a region of missense constraint encompassing the HMG box domain (the latter is an evolutionary conserved region mediating interactions with DNA). No phenotypic differences were observed among individuals with pLoF and missense SNVs, and haploinsufficiency is presumed to be the underlying mechanism. There are no variant or other studies performed, nor any animal models discussed. In supplementary table 2, the authors provide several references to previous large scale sequencing studies with brief/incomplete descriptions of individuals de novo TCF7L2 variants and neurodevelopmental disorder (ID/ASD - Iossifov, De Rubeis, Lelieveld, McRae/DDD study and many other Refs). Heterozygous TCF7L2 variants are thought to confer susceptibility to type diabetes mellitus (MIM 125853). Individuals reported by Dias et al did not have endocrine abnormalities including DM. A study by Roychowdhury et al (2021 - PMID: 34265237) suggests that regulatory variants in TCF7L2 are associated with thoracic aneurysm. There is no other associated phenotype (notably NDD) in OMIM. G2P includes TCF7L2 in its DD panel (Disease : TC7L2-related DD, Confidence:confirmed, Monoallelic, LoF). SysID includes this gene within the autism candidate genes and current primary ID genes. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8736 | PIDD1 |
Zornitza Stark gene: PIDD1 was added gene: PIDD1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: PIDD1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PIDD1 were set to 28397838; 29302074; 33414379; 34163010 Phenotypes for gene: PIDD1 were set to Global developmental delay; Intellectual disability; Seizures; Autism; Behavioral abnormality; Psychosis; Pachygyria; Lissencephaly; Abnormality of the corpus callosum Review for gene: PIDD1 was set to GREEN Added comment: There is enough evidence to include this gene in the current panel with green rating. Biallelic PIDD1 pathogenic variants have been reported in 26 individuals (11 families) with DD (all), variable degrees of ID (mild to severe), behavioral (eg. aggression/self-mutilation in several, ADHD) and/or psychiatric abnormalities (ASD, psychosis in 5 belonging to 3 families), well-controlled epilepsy is some (9 subjects from 6 families) and MRI abnormalities notably abnormal gyration pattern (pachygyria with predominant anterior gradient) as well as corpus callosum anomalies (commonly thinning) in several. Dysmorphic features have been reported in almost all, although there has been no specific feature suggested. The first reports on the phenotype associated with biallelic PIDD1 mutations were made by Harripaul et al (2018 - PMID: 28397838) and Hu et al (2019 - PMID: 29302074) [both studies investigating large cohorts of individuals with ID from consanguineous families]. Sheikh et al (2021 - PMID: 33414379) provided details on the phenotype of 15 individuals from 5 families including those from the previous 2 reports and studied provided evidence on the role of PIDD1 and the effect of variants. Zaki et al (2021 - PMID: 34163010) reported 11 additional individuals from 6 consanguineous families, summarize the features of all subjects published in the literature and review the neuroradiological features of the disorder. PIDD1 encodes p53-induced death domain protein 1. The protein is part of the PIDDosome, a multiprotein complex also composed of the bipartite linker protein CRADD (also known as RAIDD) and the proform of caspase-2 and induces apoptosis in response to DNA damage. There are 5 potential PIDD1 mRNA transcript variants with NM_145886.4 corresponding to the longest. Similar to the protein encoded by CRADD, PIDD1 contains a death domain (DD - aa 774-893). Constitutive post-translational processing gives PIDD1-N, PIDD1-C the latter further processed into PIDD1-CC (by auto-cleavage). Serine residues at pos. 446 and 588 are involved in this autoprocessing generating PIDD1-C (aa 446-910) and PIDD1-CC (aa 774-893). The latter is needed for caspase-2 activation. Most (if not all) individuals belonged to consanguineous families of different origins and harbored pLoF or missense variants. Variants reported so far include : c.2587C>T; p.Gln863* / c.1909C>T ; p.Arg637* / c.2443C>T / p.Arg815Trp / c.2275-1G>A which upon trap assay was shown to lead to skipping of ex15 with direct splicing form exon14 to the terminal exon 16 (resulting to p.Arg759Glyfs*1 with exlcusion of the entire DD) / c.2584C>T; p.Arg862Trp / c.1340G>A; p.Trp447* / c.2116_2120del; p.Val706His*, c.1564_1565del; p.Gly602fs*26 Evidence so far provided includes: - Biallelic CRADD variants cause a NDD disorder and a highly similar gyration pattern. - Confirmation of splicing effect (eg. for c.2275-1G>A premature stop in position 760) or poor expression (NM_145886.3:c.2587C>T; p.Gln863*). Arg815Trp did not affect autoprocessing or protein stability. - Abnormal localization pattern, loss of interaction with CRADD and failure to activate caspase-2 (MDM2 cleavage assay) [p.Gln863* and Arg815Trp] - Available expression data from GTEx (PIDD1 having broad expression in multiple tissues, but higher in brain cerebellum) as well as BrainSpan and PsychEncode studies suggesting high coexpression of PIDD1, CRADD and CASP2 in many regions in the developing human brain. - Variants in other genes encoding proteins interacting with PIDD1 (MADD, FADD, DNAJ, etc) are associated with NDD. Pidd-1 ko mice (ex3-15 removal) lack however CNS-related phenotypes. These show decreased anxiety but no motor anomalies. This has also been the case with Cradd-/- mice displaying no significant CNS phenotypes without lamination defects. There is currently no associated phenotype in OMIM. PIDD1 is listed in the DD panel of G2P (PIDD1-related NDD / biallelic / loss of function / probable) . SysID includes PIDD1 among the current primary ID genes. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8722 | RFXAP | Zornitza Stark Phenotypes for gene: RFXAP were changed from to Bare lymphocyte syndrome, type II, complementation group D MIM# 209920; Low CD4+ T cells; reduced MHC II expression on lymphocytes; Normal-low Ig levels; Failure to thrive; respiratory/gastrointestinal infections; liver/biliary tract disease; diarrhoea; Severe autoimmune cytopaenia; agammaglobulinaemia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8719 | RFXANK | Zornitza Stark Phenotypes for gene: RFXANK were changed from to MHC class II deficiency, complementation group B MIM# 209920; Bare Lymphocyte Syndrome, type II, complementation group B; Low CD4+ T cells; reduced MHC II expression on lymphocytes; Normal-low Ig levels; Failure to thrive; respiratory/gastrointestinal infections; liver/biliary tract disease; diarrhoea; Severe autoimmune cytopaenia; agammaglobulinaemia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8713 | RFXANK | Danielle Ariti reviewed gene: RFXANK: Rating: GREEN; Mode of pathogenicity: None; Publications: 12618906; Phenotypes: MHC class II deficiency, complementation group B MIM# 209920, Bare Lymphocyte Syndrome, type II, complementation group B, Low CD4+ T cells, reduced MHC II expression on lymphocytes, Normal-low Ig levels, Failure to thrive, respiratory/gastrointestinal infections, liver/biliary tract disease, diarrhoea, Severe autoimmune cytopaenia, agammaglobulinaemia; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8713 | RFXAP | Danielle Ariti reviewed gene: RFXAP: Rating: GREEN; Mode of pathogenicity: None; Publications: 9118943, 32875002, 11258423; Phenotypes: Bare lymphocyte syndrome, type II, complementation group D MIM# 209920, Low CD4+ T cells, reduced MHC II expression on lymphocytes, Normal-low Ig levels, Failure to thrive, respiratory/gastrointestinal infections, liver/biliary tract disease, diarrhoea, Severe autoimmune cytopaenia, agammaglobulinaemia; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8703 | ACTL6A |
Zornitza Stark changed review comment from: Two individuals from unrelated families reported with missense variants in this gene. Part of the BAF complex. Only one confirmed de novo.; to: Two individuals from unrelated families reported with missense variants in this gene, and one with a splice-site variant. Part of the BAF complex. Only one missense confirmed de novo, pathogenicity of the other variant uncertain. PMID 31994175: fourth individual reported, recurrent de novo p.Arg377Trp |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8686 | OTX2 | Zornitza Stark edited their review of gene: OTX2: Added comment: Three families reported with variants in OTX2 and otocyephaly-dysgnathia. Note variants were inherited in two of the families: in one family, from mother with microphthalmia (recognised OTX2 phenotype) and the other from an unaffected father. Lamb animal model reported.; Changed publications: 24167467, 25589041, 31969185; Changed phenotypes: Microphthalmia, syndromic 5, MIM# 610125, Pituitary hormone deficiency, combined, 6, MIM# 613986, Retinal dystrophy, early-onset, with or without pituitary dysfunction, MIM# 610125, Otocephaly-dysgnathia complex | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8630 | ERBB3 | Zornitza Stark Phenotypes for gene: ERBB3 were changed from Lethal congenital contractural syndrome 2, MIM# 607598; Hirschsprung disease; Arthrogryposis; Complex neurocristinopathy to Lethal congenital contractural syndrome 2, MIM# 607598; Visceral neuropathy, familial, 1, autosomal recessive, MIM# 243180; Hirschsprung disease; Arthrogryposis; Complex neurocristinopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8629 | ERBB3 | Zornitza Stark edited their review of gene: ERBB3: Changed phenotypes: Lethal congenital contractural syndrome 2, MIM# 607598, Visceral neuropathy, familial, 1, autosomal recessive, MIM# 243180, Complex neurocristinopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8606 | VRK1 |
Zornitza Stark changed review comment from: Complex phenotype with mixed peripheral and central neurological features. Two families reported where PCH was prominent and accompanied by ataxia. At least three families also reported where peripheral neuropathy dominated the clinical picture without PCH/ataxia.; to: Complex phenotype with mixed peripheral and central neurological features. Two families reported where PCH was prominent and accompanied by ataxia. At least three families also reported where peripheral neuropathy dominated the clinical picture without PCH/ataxia. Further delineation of phenotype 2021: PMID 34169149: expanding spectrum of neurologic disorders associated with VRK1. Two Hispanic individuals, one homozygous (R321C: VUS and LP/P in ClinVar) and one cHet (R321C+V236M, latter P and more recently VUS in ClinVar), with slowly progressive weakness and a clinical syndrome consistent with adult-onset spinal muscular atrophy WITHOUT pontocerebellar atrophy. No hom in gnomAD and both have been reported in cHet individuals with other features: R321C in association with adult-onset amyotrophic lateral sclerosis and V236M with rapidly progressive sensorimotor polyneuropathy and microcephaly. Authors suggest PMID 26583493 and 31837156 have similar reports. PMID 26583493 reports a 32yo Hispanic individual, cHet H119R+R321C, with early-onset amyotrophic lateral sclerosis, 5 years progressive weakness. PMID 31837156 reports two patients with adult-onset length-dependent motor neuropathy from unrelated consanguineous families of Moroccan Jewish descent, both hom for R387H. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8601 | CLCN3 |
Kristin Rigbye gene: CLCN3 was added gene: CLCN3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CLCN3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CLCN3 were set to PMID: 34186028 Phenotypes for gene: CLCN3 were set to Neurodevelopmental disorder Mode of pathogenicity for gene: CLCN3 was set to Other Review for gene: CLCN3 was set to GREEN Added comment: 11 individuals reported, 9 that carried 8 different rare heterozygous missense variants in CLCN3, and 2 siblings that were homozygous for an NMD-predicted frameshift variant likely abolishing ClC-3 function. All missense variants were confirmed to be de novo in eight individuals for whom parental data was available. The 11 individuals in the cohort share clinical features of variable severity. All 11 have GDD or ID and dysmorphic features, and a majority has mood or behavioural disorders and structural brain abnormalities: - Structural brain abnormalities on MRI (9/11) included partial or full agenesis of the corpus callosum (6/9), disorganized cerebellar folia (4/9), delayed myelination (3/9), decreased white matter volume (3/9), pons hypoplasia (3/9), and dysmorphic dentate nuclei (3/9). Six of those with brain abnormalities also presented with seizures. - Nine have abnormal vision, including strabismus in four and inability to fix or follow in the two with homozygous loss-of-function variants. - Hypotonia ranging from mild to severe was reported in 7 of the 11 individuals. - Six have mood or behavioural disorders, particularly anxiety (3/6). - Consistent dysmorphic facial features included microcephaly, prominent forehead, hypertelorism, down-slanting palpebral fissures, full cheeks, and micrognathia. The severity of disease in the two siblings with homozygous disruption of ClC-3 is consistent with the drastic phenotype seen in Clcn3 KO mice. The disease was more severe in two siblings carrying homozygous loss-of-function variants with the presence of GDD, absent speech, seizures, and salt and pepper fundal pigmentation in both individuals, with one deceased at 14 months of age. The siblings also had significant neuroanatomical findings including diffusely decreased white matter volume, thin corpora callosa, small hippocampi, and disorganized cerebellar folia. Supporting biallelic inheritance for LoF variants, disruption of mouse Clcn3 results in drastic neurodegeneration with loss of the hippocampus a few months after birth and early retinal degeneration. Clcn3−/− mice display severe neurodegeneration, whereas heterozygous Clcn3+/− mice appear normal. Patch-clamp studies were used to investigate four of the missense variants. These suggested a gain of function in two variants with increased current in HEK cells, however they also showed reduced rectification of voltage and a loss of transient current, plus decreased current amplitude, glycosylation and surface expression when expressed in oocytes, and were suspected to interfere with channel gating and a negative feedback mechanism. These effects were also shown to vary depending on pH levels. The current of the remaining two variants did not differ from WT. For heterozygous missense variants, the disruption induced may be at least partially conferred to mutant/WT homodimers and mutant/ClC-4 heterodimers. Both loss and gain of function in this gene resulted in the same phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8585 | ANK2 |
Zornitza Stark gene: ANK2 was added gene: ANK2 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: ANK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ANK2 were set to 31983240; 22542183; 25363768; 27479843; 28554332; 30564305; 30755392; 31981491; 33004838; 33057194 Phenotypes for gene: ANK2 were set to Long QT syndrome 4, MIM# 600919; Complex neurodevelopmental disorder, MONDO:0100038 Review for gene: ANK2 was set to GREEN Added comment: Link with cardiac abnormalities such as LongQT is DISPUTED. More than 10 unrelated individuals reported with neurodevelopmental phenotype, comprising autism/ID and de novo truncating variants, in addition to many other individuals as part of large NDD cohorts. This association has been assessed as DEFINITIVE by ClinGen. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8583 | PRDX3 |
Hazel Phillimore changed review comment from: Biallelic variants in 5 unrelated families with early onset (median 21 years , range 13-22 years) with ataxia with variable additional hyper- and hypokinetic movement disorders, and severe early-onset cerebellar atrophy (seen on MRI), and involvement of the brainstem, medullary olive and parietal cortex. Evolution of the disease was gait ataxia leading to upper limb ataxia, then dysarthria and then dysphagia, all within a decade. For some of these patients, the phenotype included myoclonus, dystonia and / or tremor. Mild classical mitochondrial features were seen in one of the patients, namely ptosis and COX-negative fibres. The variants were homozygous nonsense, homozygous frameshift, homozygous missense, and a compound heterozygote of a splice variant and missense, all leading to complete loss of the protein. Oxidative stress and mitochondrial dysfunction was indicated as the disease mechanism. The families originated from Germany, France, India and two from eastern Turkey. The two families from Turkey were seemingly unrelated to each other but had the same homozygous missense. Patient fibroblasts from each of the five probands showed lack of protein (via Western blot) and decreased glutathione peroxidase activity and decreased mitochondrial maximal respiratory capacity. PRXD3 encodes peroxiredoxin 3, a mitochondrial antioxidant protein, that catalyses the reduction of hydrogen peroxide. It localises in the mitochondria, where most hydrogen peroxide is generated. Functional studies: PRDX3 knockdown (induced by silencing RNA against PRDX3) in cerebellar medulloblastoma cells showed significantly decreased cell viability, increased hydrogen peroxide levels and increased susceptibility to apoptosis triggered by reactive oxygen species. In addition, induced knockdown drosophila (in vivo animal model) had aberrant locomotor phenotypes and reduced lifespans, while immunolabelling of the brain showed increased cell death after exposure to oxidative stress. Sources: Literature; to: Biallelic variants in 5 unrelated families with early onset (median 21 years , range 13-22 years) with ataxia with variable additional hyper- and hypokinetic movement disorders, and severe early-onset cerebellar atrophy (seen on MRI), and involvement of the brainstem, medullary olive and parietal cortex. Evolution of the disease was gait ataxia leading to upper limb ataxia, then dysarthria and then dysphagia, all within a decade. For some of these patients, the phenotype included myoclonus, dystonia and / or tremor. Mild classical mitochondrial features were seen in one of the patients, namely ptosis and COX-negative fibres. The variants were homozygous nonsense, homozygous frameshift, homozygous missense, and a compound heterozygote with a splice variant and missense, all leading to complete loss of the protein. Oxidative stress and mitochondrial dysfunction was indicated as the disease mechanism. The families originated from Germany, France, India and two from eastern Turkey. The two families from Turkey were seemingly unrelated to each other but had the same homozygous missense. Patient fibroblasts from each of the five probands showed lack of protein (via Western blot) and decreased glutathione peroxidase activity and decreased mitochondrial maximal respiratory capacity. PRDX3 encodes peroxiredoxin 3, a mitochondrial antioxidant protein, that catalyses the reduction of hydrogen peroxide. It localises in the mitochondria, where most hydrogen peroxide is generated. Functional studies: PRDX3 knockdown (induced by silencing RNA against PRDX3) in cerebellar medulloblastoma cells showed significantly decreased cell viability, increased hydrogen peroxide levels and increased susceptibility to apoptosis triggered by reactive oxygen species. In addition, induced knockdown drosophila (in vivo animal model) had aberrant locomotor phenotypes and reduced lifespans, while immunolabelling of the brain showed increased cell death after exposure to oxidative stress. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8583 | PRDX3 |
Hazel Phillimore gene: PRDX3 was added gene: PRDX3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PRDX3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PRDX3 were set to PMID: 33889951 Phenotypes for gene: PRDX3 were set to cerebellar ataxia (early onset, mild to moderate, progressive) Penetrance for gene: PRDX3 were set to unknown Review for gene: PRDX3 was set to GREEN Added comment: Biallelic variants in 5 unrelated families with early onset (median 21 years , range 13-22 years) with ataxia with variable additional hyper- and hypokinetic movement disorders, and severe early-onset cerebellar atrophy (seen on MRI), and involvement of the brainstem, medullary olive and parietal cortex. Evolution of the disease was gait ataxia leading to upper limb ataxia, then dysarthria and then dysphagia, all within a decade. For some of these patients, the phenotype included myoclonus, dystonia and / or tremor. Mild classical mitochondrial features were seen in one of the patients, namely ptosis and COX-negative fibres. The variants were homozygous nonsense, homozygous frameshift, homozygous missense, and a compound heterozygote of a splice variant and missense, all leading to complete loss of the protein. Oxidative stress and mitochondrial dysfunction was indicated as the disease mechanism. The families originated from Germany, France, India and two from eastern Turkey. The two families from Turkey were seemingly unrelated to each other but had the same homozygous missense. Patient fibroblasts from each of the five probands showed lack of protein (via Western blot) and decreased glutathione peroxidase activity and decreased mitochondrial maximal respiratory capacity. PRXD3 encodes peroxiredoxin 3, a mitochondrial antioxidant protein, that catalyses the reduction of hydrogen peroxide. It localises in the mitochondria, where most hydrogen peroxide is generated. Functional studies: PRDX3 knockdown (induced by silencing RNA against PRDX3) in cerebellar medulloblastoma cells showed significantly decreased cell viability, increased hydrogen peroxide levels and increased susceptibility to apoptosis triggered by reactive oxygen species. In addition, induced knockdown drosophila (in vivo animal model) had aberrant locomotor phenotypes and reduced lifespans, while immunolabelling of the brain showed increased cell death after exposure to oxidative stress. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8574 | ERBB3 | Zornitza Stark edited their review of gene: ERBB3: Changed phenotypes: Lethal congenital contractural syndrome 2, MIM# 607598, Complex neurocristinopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8574 | ERBB3 | Zornitza Stark edited their review of gene: ERBB3: Changed phenotypes: Complex neurocristinopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8574 | ERBB3 | Zornitza Stark Phenotypes for gene: ERBB3 were changed from Lethal congenital contractural syndrome 2, MIM# 607598; Hirschsprung disease; Arthrogryposis; Neurodevelopmental disorder with gut dysmotility to Lethal congenital contractural syndrome 2, MIM# 607598; Hirschsprung disease; Arthrogryposis; Complex neurocristinopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8570 | PDCL3 |
Zornitza Stark gene: PDCL3 was added gene: PDCL3 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: PDCL3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PDCL3 were set to 32621347 Phenotypes for gene: PDCL3 were set to Megacystis-microcolon Review for gene: PDCL3 was set to AMBER Added comment: Single publication (PMID 32621347): one family with two affected fetuses - one with megacystis and microcolon, and the other with megacystisis and bilateral diaphragmatic hernia (prune-belly phenotype). Compound het LOF variants in PDCL3 (one frameshift and one missense). Complete absence of PDLC3 expression demonstrated in one of the affected fetuses. No homozygous LOF PDCL3 variants in gnomAD. PCDL3 negatively modulates actin folding and is strongly expressed in smooth muscle of bladder and colon. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8481 | CIITA | Zornitza Stark Phenotypes for gene: CIITA were changed from to Bare Lymphocyte Syndrome, type II, complementation group A MIM# 209920; varied ID; bronchiolitis; pneumonia; severe autoimmune cytopaenia; CD4 T-cell lymphopaenia; hypogammaglobulinemia; absence of antigen-induced immune response; chronic diarrhoea; recurrent respiratory infections; recurrent gastroenteritis; failure to thrive; liver/biliary tract disease | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8478 | CIITA | Zornitza Stark reviewed gene: CIITA: Rating: GREEN; Mode of pathogenicity: None; Publications: 8402893, 9099848, 11862382, 28676232, 24789686, 20197681, 11466404, 15821736, 12910265; Phenotypes: Bare Lymphocyte Syndrome, type II, complementation group A MIM# 209920, varied ID, bronchiolitis, pneumonia, severe autoimmune cytopaenia, CD4 T-cell lymphopaenia, hypogammaglobulinemia, absence of antigen-induced immune response, chronic diarrhoea, recurrent respiratory infections, recurrent gastroenteritis, failure to thrive, liver/biliary tract disease; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8475 | CD3G | Zornitza Stark Phenotypes for gene: CD3G were changed from to Immunodeficiency 17, CD3 gamma deficient MIM# 615607; immune deficiency; autoimmunity; failure to thrive; recurrent gastrointestinal infections; recurrent respiratory infections; autoimmune haemolytic anaemia; bronchiolitis obliterans; low CD3 complex; partial T lymphocytopenia; intractable diarrhoea. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8468 | CD3G | Danielle Ariti reviewed gene: CD3G: Rating: GREEN; Mode of pathogenicity: None; Publications: 2872416, 1635567, 17277165, 23590417, 24910257, 18482219, 31921117, 11160319; Phenotypes: Immunodeficiency 17, CD3 gamma deficient MIM# 615607, immune deficiency, autoimmunity, failure to thrive, recurrent gastrointestinal infections, recurrent respiratory infections, autoimmune haemolytic anaemia, bronchiolitis obliterans, low CD3 complex, partial T lymphocytopenia, intractable diarrhoea.; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8318 | ATG7 |
Zornitza Stark changed review comment from: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk. Functional data including mouse model. Sources: Literature; to: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The more severely affected individuals had spastic paraplegia and inability to walk. Functional data including mouse model. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8318 | ATG7 |
Zornitza Stark changed review comment from: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk. Sources: Literature; to: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk. Functional data including mouse model. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8317 | ATG7 |
Zornitza Stark gene: ATG7 was added gene: ATG7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATG7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ATG7 were set to 34161705 Phenotypes for gene: ATG7 were set to Spinocerebellar ataxia, SCAR31, MIM#619422 Review for gene: ATG7 was set to GREEN Added comment: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8292 | RING1 |
Eleanor Williams gene: RING1 was added gene: RING1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RING1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: RING1 were set to 29386386 Phenotypes for gene: RING1 were set to microcephaly; intellectual disability Review for gene: RING1 was set to RED Added comment: Not associated with any phenotype in OMIM. PMID: 29386386 - Pierce et al 2018 - report a 13 yo female with a de novo RING1 p.R95Q variant and syndromic neurodevelopmental disabilities. Early motor and language development were normal but were delayed after the first year of life. Cognitive testing showed a verbal IQ of 55 and a visual performance IQ of 63. Head circumference at birth was -4.9 SD, and -4.2 SD at age 13 which falls into the severe microcephaly category. C. elegans with either the missense mutation or complete knockout of spat-3 (the suggested RING1 ortholog) were defective in monoubiquitylation of histone H2A and had defects in neuronal migration and axon guidance. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8292 | IRX5 |
Eleanor Williams changed review comment from: Associated with Hamamy syndrome #611174 (AR) in OMIM. Hamamy syndrome is characterised by craniofacial dysmorphism, hearing loss, skeletal anomalies, microcytic hypochromic anemia and congenital heart defects. Severe myopia has also been reported. Homozygous missense variants in IRX5 were reported in 2 families with this condition. Cone dystrophy ------------------- PMID: 33891002 - Khol et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments. Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected. They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae.; to: Associated with Hamamy syndrome #611174 (AR) in OMIM. Hamamy syndrome is characterised by craniofacial dysmorphism, hearing loss, skeletal anomalies, microcytic hypochromic anemia and congenital heart defects. Severe myopia has also been reported. Homozygous missense variants in IRX5 were reported in 2 families with this condition (PMID: 22581230;17230486) Duplication of gene ------------------- PMID: 33891002 - Kohl et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments. Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected. They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae. Loss of function/gene --------- PMID: 28041643 - Carss et al 2017 - screened a cohort of 722 individuals with inherited retinal disease using WES/WGS. 1 case reported with a biallelic deletion in IRX5 reported which leads to a frameshift ENST00000394636.4; c.1362_1366delTAAAG, p.Lys455ProfsTer19 in a patient with retinitis pigmentosa. PMID: 32045705 - Apuzzo et al 2020 - report 2 cases of loss of a region in 16q12.1q21 which encompasses IRX5 and IRX6 and many other genes, which together with 3 other previous reports of deletions in this region help define a syndrome with features that include dysmorphic features, short stature, microcephaly, global developmental delay/intellectual disability, autism spectrum disorder (ASD) and ocular abnormalities (nystagmus and strabismus). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8292 | IRX6 |
Eleanor Williams changed review comment from: Not associated with any disorder in OMIM or Gene2Phenotype. PMID: 33891002 - Khol et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments. Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected. They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae. Sources: Literature; to: Not associated with any disorder in OMIM or Gene2Phenotype. PMID: 33891002 - Kohl et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments. Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected. They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8264 | IRX6 |
Eleanor Williams gene: IRX6 was added gene: IRX6 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: IRX6 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: IRX6 were set to 33891002 Phenotypes for gene: IRX6 were set to cone dystrophy, MONDO:0000455 Mode of pathogenicity for gene: IRX6 was set to Other Review for gene: IRX6 was set to GREEN Added comment: Not associated with any disorder in OMIM or Gene2Phenotype. PMID: 33891002 - Khol et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments. Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected. They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8263 | EPHA7 |
Zornitza Stark gene: EPHA7 was added gene: EPHA7 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: EPHA7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: EPHA7 were set to 34176129 Phenotypes for gene: EPHA7 were set to Intellectual disability Review for gene: EPHA7 was set to AMBER Added comment: Lévy et al (2021 - PMID: 34176129) provide evidence that haploinssuficiency of EPHA7 results in a neurodevelopmental disorder. The authors report on 12 individuals belonging to 9 unrelated families, all harboring with 6q microdeletions spanning EPHA7. Overlapping features included DD (13/13), ID (10/10 - mild in most cases, individuals with larger CNVs/additional variants had more severe phenotype), speech delay and behavioral disorders. Variable other features incl. hypotonia (70%), non specific facial features, eye abnormalities (40%) and cardiac defects (25%). The CNVs ranged from 152 kb to few Mb in size but in 4 subjects (P5-8) were only minimal, involving only EPHA7. 9 out of 12 individuals had inherited the deletion (5 subjects paternal, 4 maternal), in 1 subject (P12) this occured de novo, while for 2 others inheritance was not specified. Most deletions were inherited from an unaffected parent (in 6/7 families), with unclear contribution in a further one. The authors discuss on previous studies suggesting an important role for EphA7 in brain development (modulation of cell-cell adhesion and repulsion, regulation of dendrite morphogenesis in early corticogenesis, role in dendritic spine formation later in development. EphA7 has also been proposed to drive neuronal maturation and synaptic function). Haploinsufficiency for other ephrins or ephrin receptors has been implicated in other NDDs. Overall Lévy et al promote incomplete penetrance and variable expressivity with haploinsufficiency of this gene being a risk factor for NDD. [The gene has also an %HI of 2.76% and a pLI of 1]. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8108 | NDUFB11 | Zornitza Stark Phenotypes for gene: NDUFB11 were changed from Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); MONDO:0010494; Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021); MONDO:0026721 to Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); MONDO:0010494; Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021); MONDO:0026721; X-linked sideroblastic anaemia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8053 | NFS1 | Zornitza Stark Phenotypes for gene: NFS1 were changed from Complex II/III deficiency; multisystem organ failure to Combined oxidative phosphorylation deficiency 52, MIM#619386; Complex II/III deficiency; multisystem organ failure | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8051 | NFS1 | Zornitza Stark edited their review of gene: NFS1: Changed phenotypes: Combined oxidative phosphorylation deficiency 52, MIM#619386, Complex II/III deficiency, multisystem organ failure | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8000 | PLXNA3 |
Zornitza Stark gene: PLXNA3 was added gene: PLXNA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLXNA3 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: PLXNA3 were set to 33495532 Phenotypes for gene: PLXNA3 were set to Hypogonadotropic hypogonadism Review for gene: PLXNA3 was set to GREEN Added comment: Screened 216 patients with Idiopathic hypogonadotropic hypogonadism by exome sequencing. Identified 7 individuals from 5 families with hemizygous PLXNA3 missense variants. In 2 of the kindreds, there was at least one more gene known to be associated with IHH (oligogenecity). Data provided with evidence that PLXNA3, a key component of the SEMA3F holoreceptor complex,31 is expressed by the human GnRH and olfactory/vomeronasal systems. S646P variant showed PLXNA3 localization exclusively in the ER, indicating that the variant S646P disrupts cell surface localization of PLXNA3. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7994 | SURF1 | Elena Savva reviewed gene: SURF1: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 24027061; Phenotypes: Charcot-Marie-Tooth disease, type 4K MIM#616684, Mitochondrial complex IV deficiency, nuclear type 1 MIM#220110; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7985 | NIID |
Bryony Thompson STR: NIID was added STR: NIID was added to Mendeliome. Sources: Literature Mode of inheritance for STR: NIID was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: NIID were set to 31178126; 31332381; 31819945; 33887199; 33943039; 32250060; 31332380; 32852534; 32989102 Phenotypes for STR: NIID were set to Neuronal intranuclear inclusion disease MIM#603472; Tremor, hereditary essential, 6 MIM#618866 Review for STR: NIID was set to GREEN STR: NIID was marked as clinically relevant Added comment: NM_001364012.2:c.-164GGC[(66_517)] Large number of families and sporadic cases reported with expansions, with a range of neurodegenerative phenotypes, including: dementia, Parkinsonism/tremor, peripheral neuropathy, leukoencephalopathy, myopathy, motor neurone disease. Normal repeat range: 7-60 Pathogenic repeat range: >=61-500 Mechanism of disease is translation of repeat expansion into a toxic polyglycine protein, identified in both mouse models and tissue samples from affected individuals. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7945 | DNAH2 | Zornitza Stark edited their review of gene: DNAH2: Added comment: PMID 32732226: compound het variants identified in a fetus with hydrops and complex congenital heart disease detected by fetal ultrasound. Autopsy showed multiple congenital abnormalities including hydrops, heterotaxy, complex congenital heart disease, hypotrophic splenium, and common mesentery.; Changed publications: 30811583, 32732226; Changed phenotypes: Spermatogenic failure 45, MIM# 619094, Heterotaxy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7767 | FGB |
Zornitza Stark changed review comment from: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both. Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder. Well established gene-disease association.; to: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both. Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder. Well established gene-disease association. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7749 | MCM7 |
Arina Puzriakova gene: MCM7 was added gene: MCM7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MCM7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MCM7 were set to 33654309; 34059554 Phenotypes for gene: MCM7 were set to Meier-Gorlin syndrome; Microcephaly; Intellectual disability; Lipodystrophy; Adrenal insufficiency Review for gene: MCM7 was set to AMBER Added comment: MCM7 is a component of the MCM complex, a DNA helicase which is essential for DNA replication. Other components have been linked to disease with phenotypes including microcephaly and ID. MCM7 is not associated with any phenotype in OMIM or G2P at present. ------ Currently there are 3 unrelated pedigrees in literature with different biallelic MCM7 variants associated with disease (see below). Although there is some functional data in support of variant-level deleteriousness or gene-level pathogenicity, the clinical gestalt is very different between the 3 families. - PMID: 33654309 (2021) - Two unrelated individuals with different compound het variants in MCM7 but disparate clinical features. One patient had typical Meier-Gorlin syndrome (including growth retardation, microcephaly, congenital lung emphysema, absent breast development, microtia, facial dysmorphism) whereas the second case had a multi-system disorder with neonatal progeroid appearance, lipodystrophy and adrenal insufficiency. While small at birth, the second patient did not demonstrate reduced stature or microcephaly at age 14.5 years. Both individuals had normal neurodevelopment. Functional studies using patient-derived fibroblasts demonstrate that the identified MCM7 variants were deleterious at either transcript or protein levels and through interfering with MCM complex formation, impact efficiency of S phase progression. - PMID: 34059554 (2021) - Homozygous missense variant identified in three affected individuals from a consanguineous family with severe primary microcephaly, severe ID and behavioural abnormalities. Knockdown of Mcm7 in mouse neuroblastoma cells lead to reduced cell viability and proliferation with increased apoptosis, which were rescued by overexpression of wild-type but not mutant MCM7. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7713 | COX16 | Zornitza Stark Phenotypes for gene: COX16 were changed from Hypertrophic cardiomyopathy; encephalopathy; severe fatal lactic acidosis to Mitochondrial complex IV deficiency, nuclear type 22, MIM# 619355; Hypertrophic cardiomyopathy; encephalopathy; severe fatal lactic acidosis | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7712 | COX16 | Zornitza Stark reviewed gene: COX16: Rating: AMBER; Mode of pathogenicity: None; Publications: ; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 22, MIM# 619355; Mode of inheritance: None | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7605 | SPTLC1 | Zornitza Stark Phenotypes for gene: SPTLC1 were changed from to Neuropathy, hereditary sensory and autonomic, type IA, MIM# 162400; Serine palmitoyl transferase deficiency (Disorders of complex lipid synthesis) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7602 | SPTLC2 | Zornitza Stark Phenotypes for gene: SPTLC2 were changed from to Neuropathy, hereditary sensory and autonomic, type IC, 613640; MONDO:0013337; Serine palmitoyl transferase deficiency (Disorders of complex lipid synthesis) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7567 | NDUFB3 | Zornitza Stark Phenotypes for gene: NDUFB3 were changed from to Mitochondrial complex I deficiency, nuclear type 25, MIM# 618246; MONDO:0032629 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7564 | NDUFB3 | Zornitza Stark reviewed gene: NDUFB3: Rating: GREEN; Mode of pathogenicity: None; Publications: 27091925; Phenotypes: Mitochondrial complex I deficiency, nuclear type 25, MIM# 618246, MONDO:0032629; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7564 | NDUFB3 | Elena Savva reviewed gene: NDUFB3: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 22499348; Phenotypes: Mitochondrial complex I deficiency, nuclear type 25, MIM#618246; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7561 | SLC25A46 |
Zornitza Stark changed review comment from: Hereditary motor and sensory neuropathy type VIB is an autosomal recessive complex progressive neurologic disorder characterized mainly by early-onset optic atrophy resulting in progressive visual loss and peripheral axonal sensorimotor neuropathy with highly variable age at onset and severity. Affected individuals also have cerebellar or pontocerebellar atrophy on brain imaging, and they show abnormal movements, such as ataxia, dysmetria, and myoclonus. At least 10 unrelated families reported, supportive functional data.; to: Hereditary motor and sensory neuropathy type VIB is an autosomal recessive complex progressive neurologic disorder characterized mainly by early-onset optic atrophy resulting in progressive visual loss and peripheral axonal sensorimotor neuropathy with highly variable age at onset and severity. Affected individuals also have cerebellar or pontocerebellar atrophy on brain imaging, and they show abnormal movements, such as ataxia, dysmetria, and myoclonus. New disease entity added by OMIM in 2021 to reflect this more severe end of the spectrum. At least 10 unrelated families reported, supportive functional data. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7464 | VPS41 |
Kristin Rigbye changed review comment from: "Five unrelated families with nine affected individuals, all carrying homozygous variants in VPS41 that we show impact protein function. All affected individuals presented with a progressive neurodevelopmental disorder consisting of cognitive impairment, cerebellar atrophy/hypoplasia, motor dysfunction with ataxia and dystonia, and nystagmus. Zebrafish disease modelling supports the involvement of VPS41 dysfunction in the disorder, indicating lysosomal dysregulation throughout the brain and providing support for cerebellar and microglial abnormalities when vps41 was mutated. This provides the first example of human disease linked to the HOPS-specific subunit VPS41 and suggests the importance of HOPS complex activity for cerebellar function."; to: "Five unrelated families with nine affected individuals, all carrying homozygous variants in VPS41 that we show impact protein function. All affected individuals presented with a progressive neurodevelopmental disorder consisting of cognitive impairment, cerebellar atrophy/hypoplasia, motor dysfunction with ataxia and dystonia, and nystagmus. Zebrafish disease modelling supports the involvement of VPS41 dysfunction in the disorder, indicating lysosomal dysregulation throughout the brain and providing support for cerebellar and microglial abnormalities when vps41 was mutated. This provides the first example of human disease linked to the HOPS-specific subunit VPS41 and suggests the importance of HOPS complex activity for cerebellar function." "Affected individuals were born after uneventful pregnancies and presented in most cases early in life with developmental delay. Various degrees of ataxia, hypotonia, and dystonia were present in all affected individuals, preventing independent ambulation. Likewise, nystagmus was commonly described. In addition, all affected individuals displayed intellectual disability and speech delay. Two siblings further presented with therapy-resistant epilepsy. No major dysmorphic features were found. In two individuals, retinal pigment alterations were noticed. Brain MRI revealed mild cerebellar atrophy and vermian atrophy without other major structural abnormalities in most affected individuals while in one case (Subject 9) bilateral hyperintensities at the nucleus caudatus area were noted. No hearing or vision problems were noted and in cases where nerve conduction studies were performed, these were normal. Transmission electron microscopy (TEM) on peripheral blood lymphocytes from Subject 2 and lymphoblastoid cells from Subject 3 revealed more multilayered vesicles compared to control cells." |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7464 | DPYSL5 |
Michelle Torres gene: DPYSL5 was added gene: DPYSL5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DPYSL5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: DPYSL5 were set to 33894126 Phenotypes for gene: DPYSL5 were set to Neurodevelopmental disorder with corpus callosum agenesis and cerebellar abnormalities Review for gene: DPYSL5 was set to GREEN Added comment: Nine individuals with brain malformations, including corpus callosum agenesis and/or posterior fossa abnormalities, associated with variable degrees of intellectual disability. The recurrent de novo p.Glu41Lys was found in eight unrelated patients, and a p.Gly47Arg variant was identified in one individual from the first family reported with Ritscher-Schinzel syndrome. Both impaired DPYSL5 function on dendritic outgrowth regulation by preventing the formation of the ternary complex with MAP2 and βIII-tubulin, ultimately leading to abnormal brain development Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7444 | COA6 | Zornitza Stark Phenotypes for gene: COA6 were changed from to Mitochondrial complex IV deficiency, nuclear type 13, MIM# 616501; Cardioencephalomyopathy, fatal infantile, MONDO:0014668 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7441 | COA6 | Zornitza Stark reviewed gene: COA6: Rating: GREEN; Mode of pathogenicity: None; Publications: 24549041, 25339201, 31851937, 26160915; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 13, MIM# 616501, Cardioencephalomyopathy, fatal infantile, MONDO:0014668; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7437 | PPP2R5C |
Sue White gene: PPP2R5C was added gene: PPP2R5C was added to Mendeliome. Sources: Research Mode of inheritance for gene: PPP2R5C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Phenotypes for gene: PPP2R5C were set to macrocephaly; intellectual disability Penetrance for gene: PPP2R5C were set to Complete Review for gene: PPP2R5C was set to AMBER Added comment: Emerging unpublished evidence of monoallelic missense variants causing intellectual disability and macrocephaly Sources: Research |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7436 | SLX4 | Zornitza Stark Phenotypes for gene: SLX4 were changed from to Fanconi anaemia, complementation group P, MIM# 613951; MONDO:0013499 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7433 | SLX4 | Zornitza Stark reviewed gene: SLX4: Rating: GREEN; Mode of pathogenicity: None; Publications: 21240275, 21240277; Phenotypes: Fanconi anaemia, complementation group P, MIM# 613951, MONDO:0013499; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7358 | JMJD1C |
Zornitza Stark gene: JMJD1C was added gene: JMJD1C was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: JMJD1C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: JMJD1C were set to 26181491; 32996679 Phenotypes for gene: JMJD1C were set to Intellectual disability Review for gene: JMJD1C was set to GREEN Added comment: Reported in ID cohort (with Rett-like phenotypic overlap) with supporting functional studies (PMID: 26181491). 7 individuals with rare variants identified, and variants demonstrated to be de novo in 2, one with a Rett-like phenotype and the other with ID. Functional study of the JMJD1C mutant Rett syndrome patient demonstrated that the altered protein had abnormal subcellular localization, diminished activity to demethylate the DNA damage-response protein MDC1, and reduced binding to MECP2. JMJD1C protein shown to be widely expressed in brain regions and that its depletion compromised dendritic activity. Splice-disrupting JMJD1C variant reported in association with learning disability and myoclonic epilepsy (PMID 32996679). Disruption of gene due to balanced translocation (PMID 33591602) implicated in autism spectrum disease phenotype. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7318 | FANCD2 | Zornitza Stark Phenotypes for gene: FANCD2 were changed from Fanconi anemia, complementation group D2, MIM#227646 to Fanconi anemia, complementation group D2, MIM#227646; MONDO:0009214 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7297 | RAD51 | Zornitza Stark Phenotypes for gene: RAD51 were changed from to Fanconi anaemia, complementation group R, MIM# 617244 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7294 | RAD51 | Zornitza Stark reviewed gene: RAD51: Rating: GREEN; Mode of pathogenicity: None; Publications: 26253028, 26681308, 30907510; Phenotypes: Fanconi anaemia, complementation group R, MIM# 617244; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7286 | MPLKIP | Zornitza Stark Marked gene: MPLKIP as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7286 | MPLKIP | Zornitza Stark Gene: mplkip has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7286 | MPLKIP | Zornitza Stark Phenotypes for gene: MPLKIP were changed from to Trichothiodystrophy 4, nonphotosensitive, MIM# 234050; MONDO:0021013 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7285 | MPLKIP | Zornitza Stark Publications for gene: MPLKIP were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7284 | MPLKIP | Zornitza Stark Mode of inheritance for gene: MPLKIP was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7283 | MPLKIP | Zornitza Stark reviewed gene: MPLKIP: Rating: GREEN; Mode of pathogenicity: None; Publications: 15645389, 16977596; Phenotypes: Trichothiodystrophy 4, nonphotosensitive, MIM# 234050, MONDO:0021013; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7273 | FANCL | Zornitza Stark Phenotypes for gene: FANCL were changed from to Fanconi anemia, complementation group L, MIM# 614083; MONDO:0013566 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7270 | FANCL | Zornitza Stark reviewed gene: FANCL: Rating: GREEN; Mode of pathogenicity: None; Publications: 19405097, 25754594, 33394227, 33224012; Phenotypes: Fanconi anemia, complementation group L, MIM# 614083, MONDO:0013566; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7270 | FANCI | Zornitza Stark Phenotypes for gene: FANCI were changed from to Fanconi anemia, complementation group I, MIM# 609053; MONDO:0012186 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7267 | FANCI | Zornitza Stark reviewed gene: FANCI: Rating: GREEN; Mode of pathogenicity: None; Publications: 17452773; Phenotypes: Fanconi anemia, complementation group I, MIM# 609053, MONDO:0012186; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7267 | FANCG | Zornitza Stark Phenotypes for gene: FANCG were changed from to Fanconi anaemia, complementation group G, MIM# 614082; MONDO:0013565 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7264 | FANCG | Zornitza Stark reviewed gene: FANCG: Rating: GREEN; Mode of pathogenicity: None; Publications: 9806548, 12552564; Phenotypes: Fanconi anaemia, complementation group G, MIM# 614082, MONDO:0013565; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7264 | FANCF | Zornitza Stark Phenotypes for gene: FANCF were changed from to Fanconi anaemia, complementation group F 603467; MONDO:0011325 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7261 | FANCF | Zornitza Stark reviewed gene: FANCF: Rating: GREEN; Mode of pathogenicity: None; Publications: 10615118, 31288759; Phenotypes: Fanconi anaemia, complementation group F 603467, MONDO:0011325; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7261 | FANCE | Zornitza Stark Phenotypes for gene: FANCE were changed from to Fanconi anaemia, complementation group E, MIM# 600901; MONDO:0010953 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7258 | FANCE | Zornitza Stark reviewed gene: FANCE: Rating: GREEN; Mode of pathogenicity: None; Publications: 11001585, 31586946, 7662964, 9382107, 9147877, 10205272; Phenotypes: Fanconi anaemia, complementation group E, MIM# 600901, MONDO:0010953; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7254 | NDUFB11 | Zornitza Stark Phenotypes for gene: NDUFB11 were changed from Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); MONDO:0010494; Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021); Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021) to Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); MONDO:0010494; Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021); MONDO:0026721 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7253 | NDUFB11 | Zornitza Stark Phenotypes for gene: NDUFB11 were changed from Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021) to Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); MONDO:0010494; Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021); Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7252 | NDUFB11 | Zornitza Stark Phenotypes for gene: NDUFB11 were changed from to Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952); Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7249 | NDUFB11 |
Kristin Rigbye changed review comment from: Variable syndromic features have been observed in affected individuals, however anaemia and cardiomyopathy appear to be consistent features in males and females, respectively (PMID: 28050600, PMID: 30423443, PMID: 27488349). Affected females have previously been reported with inherited pathogenic variants from their unaffected mothers. It has been suggested that this may be due to patterns of somatic X-chromosome inactivation, mosaicism or additional genetic or external factors (PMID: 28050600). Affected females have been reported with null alleles, whereas affected males have only been identified with missense variants or a recurrent single residue in-frame deletion, suggesting that some residual enzyme activity is required for males to be viable, whereas complete loss of function variants may be lethal when hemizygous (PMID: 30423443). Note: female carriers of missense variants have not been reported as clinically affected. Western blots from cells of male patients with the recurrent F93del variant showed reduced protein levels, and recombinant cells demonstrated a proliferation defect, consistent with the anaemia phenotype (PMID: 27488349).; to: Variable syndromic features have been observed in affected individuals, however anaemia and cardiomyopathy appear to be consistent features in males and females, respectively (PMID: 28050600, PMID: 30423443, PMID: 27488349). It has been suggested that heterozygous females do not display the severe phenotype associated with mitochondrial complex 1 deficiency due to highly skewed XCI favouring expression of the wild type allele, whereas these null variants result in a severe lethal disorder in hemizygous males (PMID: 25772934). Affected females have previously been reported with inherited pathogenic variants from their unaffected mothers. It has been suggested that this may be due to patterns of somatic X-chromosome inactivation, mosaicism or additional genetic or external factors (PMID: 28050600). Affected females have been reported with null alleles, whereas affected males have only been identified with missense variants or a recurrent single residue in-frame deletion, suggesting that some residual enzyme activity is required for males to be viable, whereas complete loss of function variants may be lethal when hemizygous (PMID: 30423443). Note: female carriers of missense variants have not been reported as clinically affected. Western blots from cells of male patients with the recurrent F93del variant showed reduced protein levels, and recombinant cells demonstrated a proliferation defect, consistent with the anaemia phenotype (PMID: 27488349). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7249 | NDUFB11 | Kristin Rigbye reviewed gene: NDUFB11: Rating: GREEN; Mode of pathogenicity: None; Publications: 28050600, 27488349, 30423443, 27488349; Phenotypes: Linear skin defects with multiple congenital anomalies 3, XLD (MIM#300952), Mitochondrial complex I deficiency, nuclear type 30, XLR (MIM#301021); Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7249 | FANCC | Zornitza Stark Phenotypes for gene: FANCC were changed from to Fanconi anemia, complementation group C, MIM# 227645; MONDO:0009213 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7246 | FANCC | Zornitza Stark reviewed gene: FANCC: Rating: GREEN; Mode of pathogenicity: None; Publications: 31044565, 30792206, 28717661; Phenotypes: Fanconi anemia, complementation group C, MIM# 227645, MONDO:0009213; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7242 | FANCB | Zornitza Stark Phenotypes for gene: FANCB were changed from to Fanconi anaemia, complementation group B, MIM# 300514; MONDO:0010351 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7239 | FANCB | Zornitza Stark reviewed gene: FANCB: Rating: GREEN; Mode of pathogenicity: None; Publications: 15502827; Phenotypes: Fanconi anaemia, complementation group B, MIM# 300514, MONDO:0010351; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7238 | FANCA | Zornitza Stark Phenotypes for gene: FANCA were changed from to Fanconi anaemia, complementation group A, MIM# 227650; MONDO:0009215 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7235 | FANCA | Zornitza Stark reviewed gene: FANCA: Rating: GREEN; Mode of pathogenicity: None; Publications: 10094191; Phenotypes: Fanconi anaemia, complementation group A, MIM# 227650, MONDO:0009215; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7227 | ERCC4 | Zornitza Stark Phenotypes for gene: ERCC4 were changed from to Fanconi anemia, complementation group Q, MIM# 615272; MONDO:0014108; Xeroderma pigmentosum, group F, MIM# 278760; MONDO:0010215; XFE progeroid syndrome, MIM# 610965; MONDO:0012590 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7224 | ERCC4 | Zornitza Stark reviewed gene: ERCC4: Rating: GREEN; Mode of pathogenicity: None; Publications: 23623386, 8797827, 23623389, 17183314, 29105242; Phenotypes: Fanconi anemia, complementation group Q, MIM# 615272, MONDO:0014108, Xeroderma pigmentosum, group F, MIM# 278760, MONDO:0010215, XFE progeroid syndrome, MIM# 610965, MONDO:0012590; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7220 | SDHA | Zornitza Stark Phenotypes for gene: SDHA were changed from to Mitochondrial complex II deficiency, nuclear type 1, MIM# 252011; Cardiomyopathy, dilated, 1GG, MIM# 613642; Neurodegeneration with ataxia and late-onset optic atrophy, MIM# 619259; Paragangliomas 5 , MIM#614165 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7217 | SDHA | Zornitza Stark reviewed gene: SDHA: Rating: GREEN; Mode of pathogenicity: None; Publications: 10976639, 27683074, 7550341, 22972948, 20551992, 21752896; Phenotypes: Mitochondrial complex II deficiency, nuclear type 1, MIM# 252011, Cardiomyopathy, dilated, 1GG, MIM# 613642, Neurodegeneration with ataxia and late-onset optic atrophy, MIM# 619259, Paragangliomas 5 , MIM#614165; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7212 | NDUFA8 | Zornitza Stark Phenotypes for gene: NDUFA8 were changed from NDUFA8-related mitochondrial disease; Developmental delay; microcehaly; seizures to Mitochondrial complex I deficiency, nuclear type 37, MIM# 619272; Developmental delay; microcehaly; seizures | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7209 | NDUFA8 | Zornitza Stark edited their review of gene: NDUFA8: Changed rating: AMBER; Changed publications: 32385911, 33153867; Changed phenotypes: Mitochondrial complex I deficiency, nuclear type 37, MIM# 619272, Developmental delay, microcehaly, seizures | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7206 | KCNH1 | Zornitza Stark Phenotypes for gene: KCNH1 were changed from to Temple-Baraitser syndrome, OMIM:611816; Zimmermann-Laband syndrome 1, OMIM:135500; Intellectual disability; Encephalopathy without features of TBS/ZLS | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7203 | KCNH1 | Zornitza Stark reviewed gene: KCNH1: Rating: GREEN; Mode of pathogenicity: None; Publications: 33811134; Phenotypes: Temple-Baraitser syndrome, OMIM:611816, Zimmermann-Laband syndrome 1, OMIM:135500, Intellectual disability, Encephalopathy without features of TBS/ZLS; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7186 | EXOSC1 |
Zornitza Stark gene: EXOSC1 was added gene: EXOSC1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EXOSC1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EXOSC1 were set to 33463720 Phenotypes for gene: EXOSC1 were set to Pontocerebellar hypoplasia Review for gene: EXOSC1 was set to RED Added comment: An 8‐months‐old male with developmental delay, microcephaly, subtle dysmorphism, hypotonia, pontocerebellar hypoplasia and delayed myelination. Similarly affected elder sibling succumbed at the age of 4‐years 6‐months. Exome sequencing revealed a homozygous missense variant (c.104C >T, p.Ser35Leu) in EXOSC1. In silico mutagenesis revealed loss of a polar contact with neighbouring Leu37 residue. Quantitative real‐time PCR indicated no appreciable differences in EXOSC1 transcript levels. Immunoblotting and blue native PAGE revealed reduction in the EXOSC1 protein levels and EXO9 complex in the proband, respectively. Of note, bi‐allelic variants in other exosome subunits EXOSC3, EXOSC8 and EXOSC9 have been reported to cause pontocerebellar hypoplasia type 1B, type 1C and type 1D, respectively. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7182 | UBE4A |
Zornitza Stark gene: UBE4A was added gene: UBE4A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UBE4A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UBE4A were set to 33420346 Phenotypes for gene: UBE4A were set to Intellectual disability and global developmental delay Review for gene: UBE4A was set to GREEN Added comment: 8 individuals, from 4 unrelated families, with syndromic intellectual disability and global developmental delay (other clinical features included hypotonia, short stature, seizures, and behaviour disorder. Exome sequencing identified biallelic loss-of-function variants in UBE4A in the 4 families, with variants segregating with disease and parents carriers. They demonstrated that UBE4A loss-of-function variants reduced RNA expression and protein levels in clinical samples. Mice generated to mimic patient-specific Ube4a loss-of-function variant exhibited muscular and neurological/behavioural abnormalities, some of which are suggestive of the clinical abnormalities seen in the affected individuals. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7113 | MESP1 |
Zornitza Stark gene: MESP1 was added gene: MESP1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: MESP1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MESP1 were set to 28677747; 28050627; 27185833; 26694203 Phenotypes for gene: MESP1 were set to Congenital heart disease Review for gene: MESP1 was set to AMBER Added comment: Rare/novel variants reported in at least 7 unrelated individuals with congenital heart disease, in-silicos conflicting, familial segregation only available for some (one de novo, three inherited, others unresolved). Functional data implicates gene in cardiac development. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7088 | NDUFA12 | Bryony Thompson reviewed gene: NDUFA12: Rating: GREEN; Mode of pathogenicity: None; Publications: 21617257, 33715266; Phenotypes: Mitochondrial complex I deficiency, nuclear type 23 MIM#618244; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7080 | NDUFB7 |
Bryony Thompson gene: NDUFB7 was added gene: NDUFB7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NDUFB7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NDUFB7 were set to 33502047; 27626371 Phenotypes for gene: NDUFB7 were set to Congenital lactic acidosis; hypertrophic cardiomyopathy Review for gene: NDUFB7 was set to AMBER Added comment: Single patient with a homozygous variant impacting RNA splicing (c.113-10C>G) with intrauterine growth restriction and anaemia, which displayed postpartum hypertrophic cardiomyopathy, lactic acidosis, encephalopathy, and a severe complex I defect with fatal outcome. Also, a supporting knockout cell line model demonstrating impaired complex I assembly. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7027 | ARAP3 |
Zornitza Stark gene: ARAP3 was added gene: ARAP3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ARAP3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ARAP3 were set to 32908855 Phenotypes for gene: ARAP3 were set to Lymphoedema Review for gene: ARAP3 was set to AMBER Added comment: Three unrelated families reported with rare missense variants in this gene as part of a lymphoedema cohort. However, incomplete information regarding segregation and no supporting functional data. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7026 | RORC | Zornitza Stark edited their review of gene: RORC: Added comment: Association with lymphoedema: Two individuals reported with LoF variants as part of a large cohort. Note gene is depleted for LoF in gnomad, and bi-allelic variants have been associated with immunodeficiency.; Changed publications: 26160376, 32960152; Changed phenotypes: Immunodeficiency 42, MIM# 616622, Autosomal recessive mendelian susceptibility to mycobacterial diseases due to complete RORgamma receptor deficiency, MONDO:0014710, Lymphoedema; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7026 | RORC | Zornitza Stark Phenotypes for gene: RORC were changed from to Immunodeficiency 42, MIM# 616622; Autosomal recessive mendelian susceptibility to mycobacterial diseases due to complete RORgamma receptor deficiency, MONDO:0014710 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7023 | RORC | Zornitza Stark reviewed gene: RORC: Rating: GREEN; Mode of pathogenicity: None; Publications: 26160376; Phenotypes: Immunodeficiency 42, MIM# 616622, Autosomal recessive mendelian susceptibility to mycobacterial diseases due to complete RORgamma receptor deficiency, MONDO:0014710; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7004 | PRIM1 |
Zornitza Stark changed review comment from: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinaemia, and lymphopaenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature; to: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinaemia, and lymphopaenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7003 | PRIM1 |
Zornitza Stark changed review comment from: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature; to: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinaemia, and lymphopaenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7003 | PRIM1 |
Zornitza Stark changed review comment from: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature; to: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7003 | PRIM1 |
Zornitza Stark gene: PRIM1 was added gene: PRIM1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PRIM1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PRIM1 were set to 33060134 Phenotypes for gene: PRIM1 were set to Microcephalic primordial dwarfism, MONDO:0017950 Review for gene: PRIM1 was set to AMBER Added comment: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6825 | SCA31 |
Bryony Thompson STR: SCA31 was added STR: SCA31 was added to Mendeliome. Sources: Expert list Mode of inheritance for STR: SCA31 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: SCA31 were set to 19878914; 31755042 Phenotypes for STR: SCA31 were set to Spinocerebellar ataxia 31 MIM#117210 Review for STR: SCA31 was set to GREEN STR: SCA31 was marked as clinically relevant Added comment: Complex repeat insertion (TGGAA)n, (TAGAA)n, (TAAAA)n, (TAAAATAGAA)n, TGGAA is present only in affected cases. Sequencing showed that the insertion consisted of a preceding TCAC sequence, and 3 pentanucleotide repeat components (TGGAA)n, (TAGAA)n, and (TAAAA)n in all patients tested. 2.5-3.8 KB insertion is associated with disease and RNA toxicity expected to be mechanism of disease Normal and pathogenic cut-offs are based on animal model experiments (PMID: 31755042) Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6808 | SATB1 | Zornitza Stark edited their review of gene: SATB1: Added comment: Kohlschutter-Tonz syndrome-like (KTZSL) is characterized by global developmental delay with moderately to severely impaired intellectual development, poor or absent speech, and delayed motor skills. Although the severity of the disorder varies, many patients are nonverbal and have hypotonia with inability to sit or walk. Early-onset epilepsy is common and may be refractory to treatment, leading to epileptic encephalopathy and further interruption of developmental progress. Most patients have feeding difficulties with poor overall growth and dysmorphic facial features, as well as significant dental anomalies resembling amelogenesis imperfecta. This phenotype was reported in 28 patients (patients 13 to 40, PMID 33513338), including 9 patients from 3 families. Most variants were de novo, though some were inherited, suggestive of incomplete penetrance and variable expressivity.; Changed phenotypes: Developmental delay with dysmorphic facies and dental anomalies, MIM# 619228, Kohlschutter-Tonz syndrome-like, MIM# 619229 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6793 | MPEG1 |
Zornitza Stark gene: MPEG1 was added gene: MPEG1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: MPEG1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MPEG1 were set to 33224153; 33692780; 28422754 Phenotypes for gene: MPEG1 were set to Immunodeficiency 77, MIM# 619223 Review for gene: MPEG1 was set to GREEN Added comment: Immunodeficiency-77 (IMD77) is an immunologic disorder characterized by recurrent and persistent polymicrobial infections with multiple unusual organisms. Skin and pulmonary infections are the most common, consistent with increased susceptibility to epithelial cell infections. The age at onset is highly variable: some patients have recurrent infections from childhood, whereas others present in late adulthood. The limited number of reported patients are all female, suggesting incomplete penetrance or a possible sex-influenced trait. Patient cells, mainly macrophages, show impaired killing of intracellular bacteria and organisms, including nontubercular mycobacteria, although there is also impaired killing of other organisms, such as Pseudomonas, Candida, and Aspergillus. Four individuals reported, functional data, including animal model. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6742 | UBAP1 |
Zornitza Stark changed review comment from: PMID 31696996: Five unrelated families reported with childhood-onset HSP. A recurrent two‐base pair deletion (c.426_427delGA, p.K143Sfs*15) in the UBAP1 gene was found in four families, and a similar variant (c.475_476delTT, p.F159*) was detected in a fifth family. The variant was confirmed to be de novo in two families and inherited from an affected parent in two other families. RNA studies performed in lymphocytes from one patient with the de novo c.426_427delGA variant demonstrated escape of nonsense‐mediated decay of the UBAP1 mutant transcript, suggesting the generation of a truncated protein. Both variants identified are predicted to result in truncated proteins losing the capacity of binding to ubiquitinated proteins, hence appearing to exhibit a dominant‐negative effect on the normal function of the endosome‐specific endosomal sorting complexes required for the transport‐I complex.; to: PMID 31696996: Five unrelated families reported with childhood-onset HSP. A recurrent two‐base pair deletion (c.426_427delGA, p.K143Sfs*15) in the UBAP1 gene was found in four families, and a similar variant (c.475_476delTT, p.F159*) was detected in a fifth family. The variant was confirmed to be de novo in two families and inherited from an affected parent in two other families. RNA studies performed in lymphocytes from one patient with the de novo c.426_427delGA variant demonstrated escape of nonsense‐mediated decay of the UBAP1 mutant transcript, suggesting the generation of a truncated protein. Both variants identified are predicted to result in truncated proteins losing the capacity of binding to ubiquitinated proteins, hence appearing to exhibit a dominant‐negative effect on the normal function of the endosome‐specific endosomal sorting complexes required for the transport‐I complex. PMID 32934340: additional 7 families. Median age of onset 10yrs. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6683 | KLC4 |
Zornitza Stark gene: KLC4 was added gene: KLC4 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: KLC4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: KLC4 were set to 26423925 Phenotypes for gene: KLC4 were set to Complicated hereditary spastic paraplegia Review for gene: KLC4 was set to RED Added comment: Single family reported. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6526 | APOO |
Arina Puzriakova gene: APOO was added gene: APOO was added to Mendeliome. Sources: Literature Mode of inheritance for gene: APOO was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) Publications for gene: APOO were set to 32439808 Phenotypes for gene: APOO were set to Developmental delay; Lactic acidosis; Muscle weakness; Hypotonia; Repetitive infections; Cognitive impairment; Autistic behaviour Review for gene: APOO was set to RED Added comment: - PMID: 32439808 (2021) - Three generation family with c.350T>C variant in APOO, encoding a component of the MICOS complex which plays a role in maintaining inner mitochondrial membrane architecture. Phenotypes include fatigue and muscle weakness (6/8), learning difficulties and cognitive impairment (4/8), and increased blood lactate (2/8). Four individuals were asymptomatic carriers, including one male (authors indicate variability in female carriers was due to skewed X-inactivation, although skewing studies were inconclusive in some cases). Variability in clinical presentation suggests reduced penetrance or possible contribution of additional factors. Functional studies showed altered MICOS assembly and abnormalities in mitochondria ultrastructure in patient-derived fibroblasts. Knockdown studies in Drosophila and yeast demonstrated mitochondrial structural and functional deficiencies. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6412 | LMNB1 | Zornitza Stark Phenotypes for gene: LMNB1 were changed from Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 to Microcephaly 26, primary, autosomal dominant, MIM# 619179; Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6411 | LMNB1 | Zornitza Stark edited their review of gene: LMNB1: Changed phenotypes: Microcephaly 26, primary, autosomal dominant, MIM# 619179, Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis, Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6344 | KRT5 | Zornitza Stark Phenotypes for gene: KRT5 were changed from to Dowling-Degos disease 1, MIM# 179850; Epidermolysis bullosa simplex-MCR, MIM# 609352; Epidermolysis bullosa simplex-MP 131960; Epidermolysis bullosa simplex, Dowling-Meara type, MIM# 131760; Epidermolysis bullosa simplex, Koebner type, MIM# 131900; Epidermolysis bullosa simplex, recessive 1, MIM# 601001; Epidermolysis bullosa simplex, Weber-Cockayne type, MIM# 131800 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6342 | KRT5 | Zornitza Stark reviewed gene: KRT5: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Dowling-Degos disease 1, MIM# 179850, Epidermolysis bullosa simplex-MCR, MIM# 609352, Epidermolysis bullosa simplex-MP 131960, Epidermolysis bullosa simplex, Dowling-Meara type, MIM# 131760, Epidermolysis bullosa simplex, Koebner type, MIM# 131900, Epidermolysis bullosa simplex, recessive 1, MIM# 601001, Epidermolysis bullosa simplex, Weber-Cockayne type, MIM# 131800; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6195 | DNAJC30 |
Zornitza Stark gene: DNAJC30 was added gene: DNAJC30 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DNAJC30 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNAJC30 were set to 33465056 Phenotypes for gene: DNAJC30 were set to Leber Hereditary Optic Neuropathy Review for gene: DNAJC30 was set to GREEN Added comment: 33 individuals from 29 families had homozygous DNAJC30 missense variants. Three different variants identified (one responsible for most cases). All three variants absent from gnomAD. Incomplete penetrance and male predominance in affected individuals both typical of LHON due to mtDNA mutations. All 3 variants in the J domain of the protein. Functional evidence. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6179 | EYA3 |
Paul De Fazio gene: EYA3 was added gene: EYA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EYA3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: EYA3 were set to 33475861 Phenotypes for gene: EYA3 were set to Oculo-auriculo-vertebral spectrum (OAVS) Review for gene: EYA3 was set to RED gene: EYA3 was marked as current diagnostic Added comment: 3 individuals with OAVS from two unrelated families with the same missense variant, p.(Asn358Ser). Variant has 20 heterozygotes in gnomAD. Unaffected carriers in both families were also identified - unknown if incomplete penetrance or nonsegregation. Functional studies indicate the variant increases protein half life, and gene knockdown in zebrafish had an effect on craniofacial development. Rated Red due to both families sharing the variant and uncertainty about incomplete penetrance versus nonsegregation. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6178 | HEY2 |
Zornitza Stark gene: HEY2 was added gene: HEY2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HEY2 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: HEY2 were set to 32820247 Phenotypes for gene: HEY2 were set to congenital heart defects and thoracic aortic aneurysms Review for gene: HEY2 was set to RED Added comment: A very large family affected by CHD and familial thoracic aortic aneurysms. Trio genome sequencing was carried out in an index patient with critical CHD, and family members had either exome or Sanger sequencing. Identified homozygous loss-of-function variant (c.318_319delAG, p.G108*) in HEY2 in 3 individuals in family with critical CHD, whereas the 20 heterozygous carriers show a spectrum of CVDs (CHD and FTAA, but varying expressivity and incomplete penetrance). Other studies show that knockout of HEY2 in mice results in cardiovascular defects (CVDs), including septal defects, cardiomyopathy, a thin-walled aorta, and valve anomalies. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6146 | SDHAF1 | Zornitza Stark Phenotypes for gene: SDHAF1 were changed from to Mitochondrial complex II deficiency, nuclear type 2, MIM# 619166 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6143 | SDHAF1 | Zornitza Stark reviewed gene: SDHAF1: Rating: GREEN; Mode of pathogenicity: None; Publications: 19465911, 26749241, 22995659; Phenotypes: Mitochondrial complex II deficiency, nuclear type 2, MIM# 619166; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6141 | NDUFC2 |
Zornitza Stark gene: NDUFC2 was added gene: NDUFC2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: NDUFC2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NDUFC2 were set to 32969598 Phenotypes for gene: NDUFC2 were set to Mitochondrial complex I deficiency, nuclear type 36, MIM# 619170 Review for gene: NDUFC2 was set to AMBER Added comment: Mitochondrial complex I deficiency nuclear type 36 (MC1DN36) is an autosomal recessive metabolic disorder characterized by global developmental delay, hypotonia, and failure to thrive apparent from infancy or early childhood. Affected individuals usually do not acquire ambulation, show progressive spasticity, and have impaired intellectual development with absent speech. More variable features may include pale optic discs, poor eye contact, seizures, and congenital heart defects. Laboratory studies show increased serum lactate; metabolic acidosis may occur during stress or infection. Brain imaging shows T2-weighted abnormalities in the basal ganglia and brainstem, consistent with a clinical diagnosis of Leigh syndrome. Two unrelated families reported, some functional data. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6067 | TUBG1 | Zornitza Stark Phenotypes for gene: TUBG1 were changed from to Cortical dysplasia, complex, with other brain malformations 4, MIM# 615412 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6064 | TUBG1 | Zornitza Stark reviewed gene: TUBG1: Rating: GREEN; Mode of pathogenicity: None; Publications: 23603762, 31086189; Phenotypes: Cortical dysplasia, complex, with other brain malformations 4, MIM# 615412; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6064 | TUBB3 | Zornitza Stark Phenotypes for gene: TUBB3 were changed from to Cortical dysplasia, complex, with other brain malformations 1, MIM# 614039; Fibrosis of extraocular muscles, congenital, 3A, MIM# 600638 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6061 | TUBB3 | Zornitza Stark reviewed gene: TUBB3: Rating: GREEN; Mode of pathogenicity: None; Publications: 20829227, 25059107, 33318778, 20074521; Phenotypes: Cortical dysplasia, complex, with other brain malformations 1, MIM# 614039, Fibrosis of extraocular muscles, congenital, 3A, MIM# 600638; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6061 | TUBB2B | Zornitza Stark Phenotypes for gene: TUBB2B were changed from to Cortical dysplasia, complex, with other brain malformations 7, MIM# 610031 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6058 | TUBB2B | Zornitza Stark reviewed gene: TUBB2B: Rating: GREEN; Mode of pathogenicity: None; Publications: 19465910, 22333901, 26732629, 33082561; Phenotypes: Cortical dysplasia, complex, with other brain malformations 7, MIM# 610031; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6058 | TUBB | Zornitza Stark Phenotypes for gene: TUBB were changed from to Cortical dysplasia, complex, with other brain malformations 6, MIM# 615771 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6055 | TUBB | Zornitza Stark reviewed gene: TUBB: Rating: GREEN; Mode of pathogenicity: None; Publications: 23246003, 32085672; Phenotypes: Cortical dysplasia, complex, with other brain malformations 6, MIM# 615771; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6025 | BCS1L | Zornitza Stark Phenotypes for gene: BCS1L were changed from to Bjornstad syndrome MIM#262000; GRACILE syndrome, MIM#603358; Mitochondrial complex III deficiency, nuclear type MIM#1124000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6019 | BCS1L | Elena Savva reviewed gene: BCS1L: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 17314340; Phenotypes: Bjornstad syndrome MIM#262000, GRACILE syndrome, MIM#603358, Mitochondrial complex III deficiency, nuclear type MIM#1124000; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5857 | PRR12 | Zornitza Stark Phenotypes for gene: PRR12 were changed from to Intellectual disability; Iris abnormalities; Complex microphthalmia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5854 | PRR12 | Zornitza Stark reviewed gene: PRR12: Rating: GREEN; Mode of pathogenicity: None; Publications: 33314030, 29556724; Phenotypes: Intellectual disability, Iris abnormalities, Complex microphthalmia; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5626 | SOHLH2 |
Zornitza Stark gene: SOHLH2 was added gene: SOHLH2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: SOHLH2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SOHLH2 were set to 24524832; 19014927 Phenotypes for gene: SOHLH2 were set to Premature ovarian failure Review for gene: SOHLH2 was set to RED Added comment: Heterozygous variants in this gene found to be enriched in a cohort of women with POF, substantial data including mouse models implicating this gene in infertility but paucity of well characterised cases. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5598 | CANVAS |
Bryony Thompson STR: CANVAS was added STR: CANVAS was added to Mendeliome. Sources: Expert list Mode of inheritance for STR: CANVAS was set to BIALLELIC, autosomal or pseudoautosomal Publications for STR: CANVAS were set to 30926972; 32851396 Phenotypes for STR: CANVAS were set to Cerebellar ataxia, neuropathy, and vestibular areflexia syndrome MIM#614575 Review for STR: CANVAS was set to GREEN STR: CANVAS was marked as clinically relevant Added comment: Simple tandem repeat (AAAAG)11 replaced with (AAGGG)n in intron 2 of RFC1. Loss of function is not the mechanism of disease. Maori population-specific CANVAS configuration (AAAGG)10-25(AAGGG)exp. (AAAGG)n repeat alone is not pathogenic. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5567 | VPS4A |
Kristin Rigbye changed review comment from: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." Sources: Literature; to: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents - possibly just a simple LoF mechanism for AR inheritance). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5553 | MINPP1 |
Zornitza Stark gene: MINPP1 was added gene: MINPP1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MINPP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MINPP1 were set to 33257696 Phenotypes for gene: MINPP1 were set to Pontocerebellar hypoplasia Review for gene: MINPP1 was set to GREEN Added comment: 8 individuals from 6 unrelated families reported with bi-allelic LOF variants. All presented with almost complete absence of motor and cognitive development, progressive or congenital microcephaly, spastic tetraplegia or dystonia, and vision impairments. For most, the first symptoms included neonatal severe axial hypotonia and epilepsy that started during the first months or years of life. Prenatal symptoms of microcephaly associated with increased thalami echogenicity were detected in one, while the seven other individuals presented with progressive microcephaly. Some exhibited rapidly progressive phenotype and the affected children died in their infancy or middle-childhood. Strikingly, all the affected children had a unique brain MRI showing a mild to severe PCH, fluid-filled posterior fossa, with dilated lateral ventricles. In addition, severe atrophy at the level of the basal ganglia or thalami often associated with typical T2 hypersignal were identified in all the patients MRI. Supportive functional data showing accumulation of highly phosphorylated inositols, mostly inositol hexakisphosphate (IP6), detected in HEK293 cells, fibroblasts, iPSCs and differentiating neurons lacking MINPP1. In mutant cells, higher IP6 level is expected to be associated with an increased chelation of intracellular cations, such as iron or calcium, resulting in decreased levels of available ions. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5507 | FKBP8 |
Eleanor Williams gene: FKBP8 was added gene: FKBP8 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FKBP8 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: FKBP8 were set to 32969478 Phenotypes for gene: FKBP8 were set to spina bifida HP:0002414 Review for gene: FKBP8 was set to AMBER Added comment: Not associated with a phenotype in OMIM. PMID: 32969478 - Tian et al 2020 - performed Sanger sequencing of FKBP8 on DNA samples from 472 spina bifida (SB) affected fetuses and 565 unaffected controls. 5 different rare heterozygous variants (MAF ≤ 0.001) were identified among the SB patients, while no deleterious rare variants were identified in the controls. 4 of the variants are missense, the other is a stop-gain. 2 cases were in white-Hispanic patients while the other 3 were non-white Hispanic. Functional studies showed that p.Glu140* affected FKBP8 localization to the mitochondria and impaired its interaction with BCL2 ultimately leading to an increase in cellular apoptosis. p.Ser3Leu, p.Lys315Asn and p.Ala292Ser variants decreased FKBP8 protein level. Gene expression was studied in mouse Fkbp8-/- embryos and found to be abnormal. Previous mouse models have shown neural tube defects. Sufficient cases to rate green, but only the FKBP8 gene looked at so perhaps some caution required while further evidence is gathered. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5502 | COX16 |
Bryony Thompson gene: COX16 was added gene: COX16 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: COX16 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COX16 were set to 33169484 Phenotypes for gene: COX16 were set to Hypertrophic cardiomyopathy; encephalopathy; severe fatal lactic acidosis Review for gene: COX16 was set to AMBER Added comment: 2 unrelated patients with the same homozygous (non-consanguineous) nonsense variant c.244C>T (p.Arg82*), and isolated complex IV deficiency present in both patient fibroblasts/skeletal muscle biopsy. COX16 is involved in the biogenesis of complex IV, the terminal complex of the mitochondrial respiratory chain (RC) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5470 | TLE6 |
Zornitza Stark gene: TLE6 was added gene: TLE6 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: TLE6 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TLE6 were set to 26537248; 31897846 Phenotypes for gene: TLE6 were set to Preimplantation embryonic lethality, MIM# 616814 Review for gene: TLE6 was set to GREEN Added comment: At least 5 individuals reported with bi-allelic variants and early embryonic lethality. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5338 | ACAD9 | Zornitza Stark Phenotypes for gene: ACAD9 were changed from to Mitochondrial complex I deficiency, nuclear type 20 MIM#611126 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5335 | ACAD9 | Zornitza Stark reviewed gene: ACAD9: Rating: GREEN; Mode of pathogenicity: None; Publications: 30025539; Phenotypes: Mitochondrial complex I deficiency, nuclear type 20 MIM#611126; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5274 | MYMK | Zornitza Stark changed review comment from: Sources: Expert list; to: Carey-Fineman-Ziter syndrome (CFZS) is a multisystem congenital disorder characterized by hypotonia, Moebius sequence (bilateral congenital facial palsy with impairment of ocular abduction), Pierre Robin complex (micrognathia, glossoptosis, and high-arched or cleft palate), delayed motor milestones, and failure to thrive. Intellect has been normal in molecularly confirmed cases. Defect in myoblast fusion. 6 unrelated families reported with CFZ phenotype and bi-allelic MYMK variants. p.Pro91Thr is a common founder variant, which is hypomorphic. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5229 | PRKAR1B |
Konstantinos Varvagiannis gene: PRKAR1B was added gene: PRKAR1B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PRKAR1B was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: PRKAR1B were set to https://doi.org/10.1101/2020.09.10.20190314; 25414040 Phenotypes for gene: PRKAR1B were set to Global developmental delay; Intellectual disability; Autism; Attention deficit hyperactivity disorder; Aggressive behavior; Abnormality of movement; Upslanted palpebral fissure Penetrance for gene: PRKAR1B were set to unknown Review for gene: PRKAR1B was set to AMBER Added comment: Please consider inclusion of this gene with amber rating pending publication of the preprint and/or additional evidence. Marbach et al. (2020 - medRxiv : https://doi.org/10.1101/2020.09.10.20190314 - last author : C. Schaaf) report 6 unrelated individuals with heterozygous missense PRKAR1B variants. All presented formal ASD diagnosis (6/6), global developmental delay (6/6) and intellectual disability (all - formal evaluations were lacking though). Additional features included neurologic anomalies (movement disorders : dyspraxia, apraxia, clumsiness in all, with tremor/dystonia or involuntary movements as single occurrences). Three displayed high pain tolerance. Regression in speech was a feature in two. Additional behavior anomalies included ADHD (4-5/6) or aggression (3/6). There was no consistent pattern of malformations, physical anomalies or facial features (with the exception of uplsanted palpebral fissures reported in 4). 3 different missense variants were identified (NM_00116470:c.1003C>T - p.Arg335Trp, c.586G>A - p.Glu196Lys, c.500_501delAAinsTT - p.Gln167Leu) with Arg355Trp being a recurrent one within this cohort (4/6 subjects). A possible splicing effect may apply for the MNV. All variants are absent from gnomAD and the SNVs had CADD scores > 24. In all cases were parental samples were available (5/6), the variant had occurred as a de novo event. Protein kinase A (PKA) is a tetrameric holoenzyme formed by the association of 2 catalytic (C) subunits with a regulatory (R) subunit dimer. Activation of PKA is achieved through binding of 2 cAMP molecules to each R-subunit, and unleashing(/dissociation) of C-subunits to engage substrates. PRKACA/B genes encode the Cα- and Cβ-subunits while the 4 functionally non-redundant regulatory subunits are encoded by PRKAR1A/1B/2A/2B genes. As the authors comment, the RIβ subunit is primarily expressed in brain with higher expression in cortex and hypothalamus. The functional consequences of the variants at cellular level were not studied. Previous studies have demonstrated that downregulation of RIβ in murine hippocampal cultures, reduced phosphorylation of CREB, a transcription factor involved in long-term memory formation. The authors speculate that a similar effect on cAMP/PKA/CREB cascade may mediate the cognitive effects in humans. RIβ deficient mice also display diminished nociceptive pain, similar to the human phenotype. [Several refs provided]. The authors cite the study by Kaplanis et al (2020 - PMID: 33057194), where in a large sample of 31,058 trio exomes of children with developmental disorders, PRKAR1B was among the genes with significant enrichment for de novo missense variants. [The gene has a pLI score of 0.18 in gnomAD / o/e = 0.26 - so pLoF variants may not be deleterious]. Please note that a specific PRKAR1B variant (NM_002735.2:c.149T>G - p.Leu50Arg) has been previous reported to segregate with a late-onset neurodegenerative disorder characterized by dementia and/or parkinsonism within a large pedigree with 12 affected individuals [Wong et al 2014 - PMID: 25414040]. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5222 | MPP5 |
Konstantinos Varvagiannis gene: MPP5 was added gene: MPP5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MPP5 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: MPP5 were set to 33073849 Phenotypes for gene: MPP5 were set to Global developmental delay; Intellectual disability; Delayed speech and language development; Developmental regression; Behavioral abnormality Penetrance for gene: MPP5 were set to unknown Review for gene: MPP5 was set to GREEN Added comment: Sterling et al (2020 - PMID: 33073849) provide information on the phenotype of 3 individuals with de novo MPP5 variants. Common features included global developmental delay, intellectual disability (3/3 - severe in 2/3), speech delay/regression (the latter in at least 2) and behavioral abnormalities. Variable other features were reported, among others microcephaly (1/3), abnormal vision (1/3 : CVI, retinal dystrophy, nystagmus), brain MRI abnormalities (2/3), late-onset seizures (1/3). These subjects displayed variable and non-specific dysmorphic features. All were investigated by exome sequencing (previous investigations not mentioned). One subject was found to harbor a de novo mosaic (5/25 reads) stopgain variant, further confirmed by Sanger sequencing [NM_022474.4:c.1555C>T - p.(Arg519Ter). The specific variant is reported once in gnomAD (1/251338). Two de novo missense variants were identified in the remaining individuals [c.1289A>G - p.Glu430Gly / c.974A>C - p.His325Pro). All variants had in silico predictions in favor of a deleterious effect (CADD score >24). The authors comment that MPP5 encodes an apical complex protein with asymmetric localization to the apical side of polarized cells. It is expressed in brain, peripheral nervous system and other tissues. MPP5 is a member of the membrane-associated guanylate kinase family of proteins (MAGUK p55 subfamily), determining cell polarity at tight junctions. Previous animal models suggest that complete Mpp5(Pals1) KO in mice leads to near absence of cerebral cortical neurons. Htz KO display reduction in size of cerebral cortex and hippocampus. The gene is expressed in proliferating cell populations of cerebellum and important for establishment cerebellar architecture. Conditional KO of Mpp5(Pals1) in retinal progenitor cells mimics the retinal pathology observed in LCA. [Several refs. provided] The authors studied a heterozygous CNS-specific Mpp5 KO mouse model. These mice presented microcephaly, decreased cerebellar volume and cortical thickness, decreased ependymal cells and Mpp5 at the apical surface of cortical vertrical zone. The proportion of cortical cells undergoing apoptotic cell death was increased. Mice displayed behavioral abnormalities (hyperactivity) and visual deficits, with ERG traces further suggesting retinal blindness. Overall the mouse model was thought to recapitulate the behavioral abnormalities observed in affected subjects as well as individual rare features such as microcephaly and abnormal vision. Haploinsufficiency (rather than a dominant negative effect) is favored as the underlying disease mechanism. This is also in line with a dose dependent effect observed in mice. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5156 | NDUFAF6 | Zornitza Stark Phenotypes for gene: NDUFAF6 were changed from to Mitochondrial complex I deficiency, nuclear type 17 (MIM#618239) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5153 | NDUFAF6 | Ain Roesley reviewed gene: NDUFAF6: Rating: GREEN; Mode of pathogenicity: None; Publications: 30642748; Phenotypes: Mitochondrial complex I deficiency, nuclear type 17 (MIM#618239); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5129 | NDUFA4 | Zornitza Stark Phenotypes for gene: NDUFA4 were changed from Leigh syndrome; Complex IV deficiency to Mitochondrial complex IV deficiency, nuclear type 21, MIM#619065; Leigh syndrome; Complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5128 | NDUFA4 | Zornitza Stark edited their review of gene: NDUFA4: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 21, MIM#619065, Leigh syndrome, Complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5128 | COX5A | Zornitza Stark Phenotypes for gene: COX5A were changed from pulmonary arterial hypertension; lactic acidemia; failure to thrive; isolated complex IV deficiency to Mitochondrial complex IV deficiency, nuclear type 20, MIM#619064; pulmonary arterial hypertension; lactic acidemia; failure to thrive; isolated complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5127 | COX5A | Zornitza Stark edited their review of gene: COX5A: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 20, MIM#619064, pulmonary arterial hypertension, lactic acidemia, failure to thrive, isolated complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5127 | PET117 | Zornitza Stark Phenotypes for gene: PET117 were changed from Developmental delay; Regression; Complex IV deficiency to Mitochondrial complex IV deficiency, nuclear type 19, MIM#619063; Developmental delay; Regression; Complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5126 | PET117 | Zornitza Stark edited their review of gene: PET117: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 19, MIM#619063, Developmental delay, Regression, Complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5126 | COX6A2 | Zornitza Stark Phenotypes for gene: COX6A2 were changed from Mitochondrial complex IV deficiency, MIM# 220110 to Mitochondrial complex IV deficiency, nuclear type 18, MIM#619062 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5125 | COX6A2 | Zornitza Stark edited their review of gene: COX6A2: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 18, MIM#619062 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5125 | APOPT1 | Zornitza Stark Phenotypes for gene: APOPT1 were changed from to Mitochondrial complex IV deficiency, nuclear type 17, MIM#619061 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5122 | APOPT1 | Zornitza Stark reviewed gene: APOPT1: Rating: GREEN; Mode of pathogenicity: None; Publications: 25175347]; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 17, MIM#619061; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5121 | COX4I1 |
Zornitza Stark gene: COX4I1 was added gene: COX4I1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: COX4I1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COX4I1 were set to 28766551; 22592081; 31290619 Phenotypes for gene: COX4I1 were set to Mitochondrial complex IV deficiency, nuclear type 16, MIM#619060 Review for gene: COX4I1 was set to AMBER Added comment: Two unrelated families reported. Two more variants reported in PMID: 22592081: one is non-coding and the other rare missense, appear to have been identified in separate individuals, i.e. heterozygous in each individual. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5120 | COX8A | Zornitza Stark Phenotypes for gene: COX8A were changed from Mitochondrial complex IV deficiency, MIM# 220110 to Mitochondrial complex IV deficiency, nuclear type 15, MIM#619059 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5119 | COX8A | Zornitza Stark edited their review of gene: COX8A: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 15, MIM#619059 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5119 | COA3 | Zornitza Stark Phenotypes for gene: COA3 were changed from Mitochondrial complex IV deficiency to Mitochondrial complex IV deficiency, nuclear type 14, MIM# 619058 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5118 | COA3 | Zornitza Stark edited their review of gene: COA3: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 14, MIM# 619058 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5118 | PET100 | Zornitza Stark Phenotypes for gene: PET100 were changed from to Mitochondrial complex IV deficiency, nuclear type 12, MIM# 619055 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5115 | PET100 | Zornitza Stark reviewed gene: PET100: Rating: GREEN; Mode of pathogenicity: None; Publications: 24462369, 25293719, 31406627; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 12, MIM# 619055; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5115 | COX20 | Zornitza Stark Phenotypes for gene: COX20 were changed from to Mitochondrial complex IV deficiency, nuclear type 11, MIM#619054 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5112 | COX20 | Zornitza Stark reviewed gene: COX20: Rating: GREEN; Mode of pathogenicity: None; Publications: 24202787, 31079202, 30656193, 23125284, 32606554; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 11, MIM#619054; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5112 | COX14 | Zornitza Stark Phenotypes for gene: COX14 were changed from Mitochondrial complex IV deficiency, MIM#220110 to Mitochondrial complex IV deficiency, nuclear type 10, MIM#619053 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5111 | COX14 | Zornitza Stark edited their review of gene: COX14: Changed phenotypes: Mitochondrial complex IV deficiency, nuclear type 10, MIM#619053 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5111 | TACO1 | Zornitza Stark Phenotypes for gene: TACO1 were changed from to Mitochondrial complex IV deficiency, nuclear type 8, MIM# 619052 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5108 | TACO1 | Zornitza Stark reviewed gene: TACO1: Rating: GREEN; Mode of pathogenicity: None; Publications: 19503089, 20727754, 25044680, 27319982; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 8, MIM# 619052; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5105 | COX6B1 | Zornitza Stark Phenotypes for gene: COX6B1 were changed from to Mitochondrial complex IV deficiency, nuclear type 7, MIM# 619051 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5102 | COX6B1 | Zornitza Stark reviewed gene: COX6B1: Rating: GREEN; Mode of pathogenicity: None; Publications: 18499082, 24781756; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 7, MIM# 619051; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5102 | SCO1 | Zornitza Stark Phenotypes for gene: SCO1 were changed from to Mitochondrial complex IV deficiency, nuclear type 4, MIM# 619048 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5099 | SCO1 | Zornitza Stark reviewed gene: SCO1: Rating: GREEN; Mode of pathogenicity: None; Publications: 11013136, 19295170, 31352446, 23878101; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 4, MIM# 619048; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5099 | COX10 | Zornitza Stark Phenotypes for gene: COX10 were changed from to Mitochondrial complex IV deficiency, nuclear type 3, MIM# 619046 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5096 | COX10 | Zornitza Stark reviewed gene: COX10: Rating: GREEN; Mode of pathogenicity: None; Publications: 10767350, 12928484, 15455402, 27290639; Phenotypes: Mitochondrial complex IV deficiency, nuclear type 3, MIM# 619046; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4998 | CSNK1G1 |
Zornitza Stark gene: CSNK1G1 was added gene: CSNK1G1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CSNK1G1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CSNK1G1 were set to 33009664 Phenotypes for gene: CSNK1G1 were set to Global developmental delay; Intellectual disability; Autism; Seizures Review for gene: CSNK1G1 was set to GREEN Added comment: Borderline Green/Amber rating. Gold et al (2020 - PMID: 33009664) report 5 individuals with CSNK1G1 variants, including updated information on a previously reported subject (Martin et al 2014 - PMID: 24463883). Features included DD (5/5) with associated expressive language delay, ASD (in at least 3/5), seizures (2/5), dysmorphic facial features (4/5 arched eyebrows, 3/5 prominent central incisors, 2/5 epicanthus) and limb anomalies (2/5 - proximally placed thumb, 5th f. clinodactyly, asymmetric overgrowth - the other individual had tapering fingers). GI problems were observed in 4/5. Two individuals had macrocephaly and one had microcephaly. There was no formal developmental assessment although ID might be implied in at least 3 individuals (p1: 20y - single words/regression in walking following a seizure episode, p2: 8y - first words at 5y, assistance to feed, dress and bathe, ASD, p4: 13y - regression, assistance to feed and dress). CSNK1G1 encodes the gamma-1 isoform of casein kinase 1, a protein involved in growth and cell morphogenesis. The gene has ubiquitous expression, incl. brain. As commented, in brain it regulates phosphorylation of NMDA receptors, playing a role in synaptic transmission (4 articles cited). One individual had a 1.2 kb deletion spanning exon 3 of CSNK1G1 [chr15:64550952-64552120 - GRCh37]. Parental samples were unavailable for this individual. Four individuals were found to harbor de novo CSNK1G1 variants [NM_022048.3: c.688C>T - p.(Arg230Trp) dn | c.1255C>T - p.(Gln419*) dn | c.1214+5G>A dn with in silico predictions in favor of splice disruption | c.419C>T - p.(Thr140Met) dn]. Arg230Trp is however present once in gnomAD. The stopgain variant is located in the last exon and predicted to skip NMD. There were no variant studies performed. The Drosophila gish gene encodes a CK1γ homolog with preferential expression in the mushroom body. Heterozygous and homozygous mutants exhibit impairment in memory retention, more severe in homozygous flies. gish was also identified as a seizure modifier in a fly epilepsy model (heterozygous para mt flies). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4874 | ITFG2 |
Zornitza Stark gene: ITFG2 was added gene: ITFG2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ITFG2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ITFG2 were set to 28397838; https://doi.org/10.1038/s41525-020-00150-z Phenotypes for gene: ITFG2 were set to Neurodevelopmental abnormality; Intellectual disability; Developmental regression; Ataxia Review for gene: ITFG2 was set to AMBER Added comment: ITFG2 was suggested to be a candidate gene for autosomal recessive ID in the study by Harripaul et al (2018 - PMID: 28397838). The authors performed microarray and exome sequencing in 192 consanguineous families and identified a homozygous ITGF2 stopgain variant (NM_018463.3:c.472G>T / p.Glu158*) along with 3 additional variants segregating with ID within an investigated family (PK51). Cheema et al (2020 - https://doi.org/10.1038/s41525-020-00150-z) report briefly on a male, born to consanguineous parents presenting with NDD, seizures, regression and ataxia. There was a similarly affected female sibling. Evaluation of ROH revealed a homozygous ITFG2 nonsense variant [NM_018463.3:c.361C>T / p.(Gln121*)]. Families in this study were investigated by trio WES or WGS. Evaluation of data of the same lab revealed 3 additional unrelated subjects with overlapping phenotypes, notably NDD and ataxia. These individuals were - each - homozygous for pLoF variants [NM_018463.3:c.848-1G>A; NM_018463.3:c.704dupC, p.(Ala236fs), NM_018463.3:c.1000_1001delAT, p.(Ile334fs)]. As discussed in OMIM, ITFG2 encodes a subunit of the KICSTOR protein complex, having a role in regulating nutrient sensing by MTOR complex-1 (Wolfson et al 2017 - PMID : 28199306). Rated Amber as Cheema et al report on diagnostic outcomes and multiple candidate genes as part of a heterogenous cohort and details are therefore limited. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4862 | VPS41 |
Zornitza Stark gene: VPS41 was added gene: VPS41 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: VPS41 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: VPS41 were set to 32808683 Phenotypes for gene: VPS41 were set to Dystonia; intellectual disability Review for gene: VPS41 was set to RED Added comment: Single individual reported with homozygous canonical splice site variant resulting in exon 7 skipping, and global developmental delay and generalized dystonia. He attained a few words and voluntary limb movements but never sat unsupported. He had pale optic discs and an axonal neuropathy. From 6 years of age, his condition began to deteriorate, with reduced motor abilities and alertness. An MRI of the brain showed atrophy of the superior cerebellar vermis and slimming of the posterior limb of the corpus callosum. VPS41 is component of the HOPS complex and other genes in the complex have been implicated in movement disorders. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4791 | AP1S1 |
Ee Ming Wong changed review comment from: - Established green gene in Ichthyosis, Palmoplantar Keratoderma and Erythrokeratoderma, ID and Hereditary Neuropathy (complex) panels associated with MEDNIK syndrome - PMID: 32306098 propose a clinical and genetic expansion for AP1S1-associated disease - 2 consanguineous families, each carrying a homozygous missense AP1S1 variant - AP1S1 knockout cell line demonstrated tight-junction and polarity abnormalities that were rescued by WT AP1S1, but not the AP1S1 missense mutants; to: - Established green gene in Ichthyosis, Palmoplantar Keratoderma and Erythrokeratoderma, ID and Hereditary Neuropathy (complex) panels associated with MEDNIK syndrome - PMID: 32306098 propose a clinical and genetic expansion for AP1S1-associated disease - 2 consanguineous families, each carrying a homozygous missense AP1S1 variant - AP1S1 knockout cell line demonstrated tight-junction and polarity abnormalities that were rescued by WT AP1S1, but not the AP1S1 missense mutants |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4791 | AP1S1 |
Ee Ming Wong changed review comment from: - 2 consanguineous families, each carrying a homozygous missense AP1S1 variant - AP1S1 knockout cell line demonstrated tight-junction and polarity abnormalities that were rescued by WT AP1S1, but not the AP1S1 missense mutants; to: - Established green gene in Ichthyosis, Palmoplantar Keratoderma and Erythrokeratoderma, ID and Hereditary Neuropathy (complex) panels associated with MEDNIK syndrome - PMID: 32306098 propose a clinical and genetic expansion for AP1S1-associated disease - 2 consanguineous families, each carrying a homozygous missense AP1S1 variant - AP1S1 knockout cell line demonstrated tight-junction and polarity abnormalities that were rescued by WT AP1S1, but not the AP1S1 missense mutants |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4724 | IGSF10 |
Bryony Thompson gene: IGSF10 was added gene: IGSF10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: IGSF10 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: IGSF10 were set to 27137492; 31042289 Phenotypes for gene: IGSF10 were set to delayed puberty; hypogonadotropic hypogonadism; primary ovary insufficiency Review for gene: IGSF10 was set to AMBER Added comment: PMID: 27137492 - 4 Finnish families segregating p.Glu161Lys, but Finnish MAF in ExAC is 2%. Another six additional families with a possible missense, but variants are seen in ExAC suggesting incomplete penetrance. Supporting in vitro functional assays and zebrafish model. PMID: 31042289 - 2 unrelated consanguineous families with homozygous variants and family with a heterozygous frameshift and apparent incomplete penetrance. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4668 | BLOC1S5 |
Zornitza Stark gene: BLOC1S5 was added gene: BLOC1S5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BLOC1S5 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BLOC1S5 were set to 32565547 Phenotypes for gene: BLOC1S5 were set to Hermansky–Pudlak syndrome Review for gene: BLOC1S5 was set to GREEN Added comment: 2 unrelated patients with mild oculocutaneous albinism, moderate bleeding diathesis, platelet aggregation deficit, and a dramatically decreased number of platelet dense granules, all signs compatible with HPS. Identified distinct homozygous variants in the BLOC1S5 gene (patient 1: deletion of exons 3 and 4, patient 2: 1-bp deletion in exon 4). Parental segregation confirmatory in patient 1, quantitative PCR analysis confirmatory in patient 2). Functional tests performed on platelets of one patient displayed an absence of the obligate multisubunit complex BLOC-1, showing that the variant disrupts BLOC1S5 function and impairs BLOC-1 assembly. Expression of the patient-derived BLOC1S5 deletion in nonpigmented murine Bloc1s5-/- melan-mu melanocytes failed to rescue pigmentation, the assembly of a functional BLOC-1 complex, and melanosome cargo trafficking, unlike the wild-type allele. Pathogenic variants in the genes encoding three other BLOC-1 subunits (DTNBP1, BLOC1S3, and BLOC1S6) underlie HPS types 7, 8, and 9 respectively. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4664 | FOXL2 |
Ain Roesley changed review comment from: PMID: 31077882; 19x probands reported, AD. PMID: 18642388; BPES type I : Mutations predicted to result in proteins with truncation before the poly-Ala tract BPES type II: poly-Ala expansions (WT poly-Ala is between aa 221-234) Exceptions: Truncated proteins with complete forkhead and poly-Ala domains, can be either Type I and II NOTE: only 1 family reported for AR (PMID: 17089161); to: PMID: 31077882; >100 probands reported, AD. PMID: 18642388; BPES type I : Mutations predicted to result in proteins with truncation before the poly-Ala tract BPES type II: poly-Ala expansions (WT poly-Ala is between aa 221-234) Exceptions: Truncated proteins with complete forkhead and poly-Ala domains, can be either Type I and II NOTE: only 1 family reported for AR (PMID: 17089161) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4625 | MIEF2 | Zornitza Stark Phenotypes for gene: MIEF2 were changed from Progressive muscle weakness; Exercise intolerance; Ragged red and COX negative fibres; Complex I and IV deficiency to Combined oxidative phosphorylation deficiency 49, MIM# 619024; Progressive muscle weakness; Exercise intolerance; Ragged red and COX negative fibres; Complex I and IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4623 | MIEF2 | Zornitza Stark edited their review of gene: MIEF2: Changed phenotypes: Combined oxidative phosphorylation deficiency 49, MIM# 619024, Progressive muscle weakness, Exercise intolerance, Ragged red and COX negative fibres, Complex I and IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4531 | IBA57 |
Zornitza Stark changed review comment from: More than 15 families reported with bi-allelic variants in this gene and a severe neurodegenerative disorder characterised by loss of previously acquired developmental milestones in the first months or years of life. Some affected individuals have normal development in early infancy before the onset of symptoms, whereas others show delays from birth. Features included loss of motor function, spasticity, pyramidal signs, loss of speech, and cognitive impairment. The disease course is highly variable: some individuals die of respiratory failure early in childhood, whereas some survive but may be bedridden with a feeding tube. Less commonly, some individuals may survive and have a stable course with motor deficits and mild or even absent cognitive impairment, although there may be fluctuating symptoms, often in response to infection. Other variable features include visual problems and seizures. Brain imaging shows diffuse leukodystrophy in the subcortical region, brainstem, cerebellum, and spinal cord. Laboratory studies tend to show increased lactate and CSF glycine, and decreased activity of mitochondrial complexes I and II, although these findings are also variable.; to: MMDS3: More than 15 families reported with bi-allelic variants in this gene and a severe neurodegenerative disorder characterised by loss of previously acquired developmental milestones in the first months or years of life. Some affected individuals have normal development in early infancy before the onset of symptoms, whereas others show delays from birth. Features included loss of motor function, spasticity, pyramidal signs, loss of speech, and cognitive impairment. The disease course is highly variable: some individuals die of respiratory failure early in childhood, whereas some survive but may be bedridden with a feeding tube. Less commonly, some individuals may survive and have a stable course with motor deficits and mild or even absent cognitive impairment, although there may be fluctuating symptoms, often in response to infection. Other variable features include visual problems and seizures. Brain imaging shows diffuse leukodystrophy in the subcortical region, brainstem, cerebellum, and spinal cord. Laboratory studies tend to show increased lactate and CSF glycine, and decreased activity of mitochondrial complexes I and II, although these findings are also variable. SPG74: Three families with spastic paraparesis as a feature of the condition. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4528 | NSUN3 | Zornitza Stark Phenotypes for gene: NSUN3 were changed from combined mitochondrial respiratory chain complex deficiency to Combined oxidative phosphorylation deficiency 48, MIM# 619012 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4520 | SLC12A2 |
Zornitza Stark edited their review of gene: SLC12A2: Added comment: Monoallelic : DD/ID was a feature in >= 6 individuals with monoallelic de novo SLC12A2. An individual with an exon 22 truncating variant was reported to have normal milestones and cognitive function. Exon 21 variants have been described in individuals with rather isolated hearing impairment (possibly some associated motor delay, but normal cognition). Hearing impairment was also reported in 2/6 patients with variants in other exons (1 missense / 1 frameshift). Biallelic : DD/ID was reported in at least 3 individuals in literature. Hearing impairment has been reported on 2 occasions (although this was not probably evaluated in all subjects). --- Monoallelic SLC12A2 mutations : ► Individuals with de novo mutations and developmental disorder were first identified by the DDD study (2017 - PMID: 28135719). 5 of them have been reported in detail by McNeill et al (below). ► McNeill et al (2020 - PMID: 32658972) report on 6 individuals with neurodevelopmental disorder due to de novo SLC12A2 mutation. All presented DD or ID ranging from mild to severe. ASD was reported in 3/6. Sensorineural hearing loss was a feature in 2/6 with the remaining having normal formal evaluations. Brain, cardiac and/or additional malformations were reported in a single individual. Following non-diagnostic prior work-up (CMA, FMR1 or other investigations) trio exome sequencing revealed missense (4/6) or truncating variants (2/6). Three additional individuals (incl. a father and his son) with missense variants in exon 21 (NM_001046.3 / p.Glu979Lys and p.Glu980Lys) presented with bilateral sensorineural hearing loss. Speech and/or motor delay reported in these cases were attributed to the hearing impairment/vestibular arreflexia (cognitive abilities not tested). SLC12A2 encodes sodium-potassium-chloride transporter 1 (also NKCC1). The GTEx project has identified 8 isoforms. In brain both exon 21-containing/deleted isoforms are expressed (cited Morita et al 2014 - PMID: 24695712). As the authors discuss, RNA-seq of the developing mouse cochlea suggests that the exon 21 containing isoform is the single transcript expressed. Evidence from RNA-seq data (BrainSpan project) and literature suggests that the significant amounts of exon 21 lacking isoforms in fetal brain compensate for the deleterious effects of exon 21 variants and explain the lack of NDD in relevant patients. Slc12a2 (NKCC1) null mouse model has demonstrated that the transporter plays a role in accumulation of the potassium rich endolymph in the inner ear, with NKCC1 absence causing sensorineural deafness and imbalance. Slc12a2 display cochlear malformations, loss of hair cells and hearing impairment (cited Delpire et al 1999 - PMID: 10369265). The brain phenotype has not been studied extensively, although loss of Slc12a2 has been shown to inhibit neurogenesis (cited: Magalhães and Rivera et al. - PMID: 27582690). Slc12a2 null zebrafish display a collapse of the otic vesicle and reduced endolymph (Abbas and Whitfield, 2009 - PMID: 19633174) relevant to the human hearing disorder. In vitro assessment of NKCC1 ion transporter function in Xenopus laevis, supported the deleterious effect of the identified variants (significant reduction in K+ influx). Using available single cell RNA-seq data the authors further demonstrated that SLC12A2 expressing cells display transcriptomic profiles reflective of active neurogenesis. ► Delpire et al (2016 - PMID: 27900370 - not reviewed in detail) described a 13 y.o. girl harboring a de novo 11-bp deletion in SLC12A2 exon 22. This individual reached developmental milestones on time and had a NORMAL cognitive function. Hearing was seemingly normal. Features included orthostatic intolerance, respiratory weakness, multiple endocrine abnormalities, pancreatic insufficiency and multiorgan failure incl. gut and bladder. Exome in the proband, parents and 3 unaffected sibs suggested SLC12A2 as the only candidate for her phenotype. Functional analyses in Xenopus laevis oocytes suggested that a non functional transporter was expressed and trafficked to the membrane as the wt. Detection of the truncated protein at higher molecular sizes suggested either enhanced dimerization or misfolded aggregate. There was no dominant-negative effect of mutant NKCC1. In patient fibroblasts a reduced total and NKCC1-mediated K+ influx. ► Mutai et al (2020 - PMID: 32294086) report on several individuals from 4 families, harboring variants within exon 21 or - in one case - at it's 3' splice-site (leading to skipping oe this exon at the mRNA level). All subjects were investigated for severe/profound hearing loss (in line with the role of exon 21-included isoforms in cochlea. The variant segregated with hearing impairment in 3 generations of a family while in all other subjects the variant had occured as de novo event. Despite motor delays (e.g. the subject from fam2 could not hold head or sit at the age of 10m / the proband in Fam3 was able to hold his head and walk at 6 and 20 m respectively) behavior and cognition were commented to be within normal range. ----- Biallelic SLC12A2 mutations: ► Anazi et al (2017 - PMID: 29288388) briefly reported on a 3 y.o. boy (17DG0776) with central hypotonia, neonatal respiratory distress, failure to thrive, global DD and microcephaly and a skeletal survey suggestive of osteopenia. After non-diagnostic prior investigations (CMA revealing a 1p duplication classified as VUS, extensive metabolic workup), WES revealed a homozygous SLC12A2 splicing variant [NM_001046.2:c.2617-2A>G]. ► Macnamara et al (2019 - PMID: 30740830) described a 5.5 y.o. male with sensorineural hearing loss, profound delays in all developmental areas among several other features (choanal atresia, failure to thrive, respiratory problems, absent sweat and tear production or salivation, GI abnormalities). Genetic testing for several disorders considered (cystic fibrosis, spinal muscular atrophy, sequencing and del/dup analysis of mtDNA) was normal. CMA revealed paternal uniparental isodisomy for chr. 5 and WGS a homozygous 22kb deletion in SLC12A2. This was followed by confirmation of homozygosity in the proband, heterozygosity of the unaffected father, delineation of breakpoints (chr5:127441491-127471419). mRNA studies in patient fibroblasts confirmed deletion of ex2-7, splicing of ex1 directly to ex8 and introduction of a premature stop codon in ex9. qRT-PCR confirmed that mRNA is likely subjected to NMD (expression ~80% of control). Western blot confirmed absence of the protein in the patient's fibroblasts. Again mouse models are thought to recapitulate the hearing defect but also the deficient saliva production (cited Evans et al 2000 - PMID: 10831596). Again the authors speculate a role of SLC12A2 in brain development based on evidence from murine models (migration, dendritic growth, increse in neuron density through regulation of GABAergic signalling (Young et al 2012 - PMID: 23015452). Hypotheses are also made on a regulatory relationship between NKCC1 and CFTR based on mRNA data from the ko mouse model. ► Stödberg et al (2020 - PMID: 32754646) reported 2 sibs with a complex neurodevelopmental disorder due to compound heterozygosity for a frameshift SLC12A2 variant and a splicing one (NM_001046:c.1431delT and c.2006-1G>A). Both presented hypotonia, neonatal S. aureus parotitis and respiratory problems (incl. apneas). While the older sib died at the age of 22 days, the younger one had persistent respiratory issues incl. a dry respiratory mucosa motivating metabolic, immunology investigations and testing for CF. She displayed microcephaly (OFC -2.5 SD, H was also -3.5SD), severe intellectual disability. MRI was suggestive of white matter and basal ganglia abnormalities. Other features incl. hearing impairment, and lack of tears,saliva and sweat, constipation and intestinal malrotation. There was facial dysmorphism. The variants were the only retained following WGS of the 2 affected sisters, parents and an unaffected brother. The splicing variant was shown to result in skipping of exon 13, while the indel in NMD. Again the authors discuss that the deficient saliva production, impaired hearing and GI problems are recapitulated in the mouse model (several refs provided).; Changed rating: GREEN; Changed publications: 28135719, 32658972, 27900370, 32294086, 29288388, 30740830, 32754646; Changed phenotypes: Kilquist syndrome, deafness, intellectual disability, dysmorphic features, absent salivation, ectodermal dysplasia, constipation, intestinal malrotation, multiple congenital anomalies; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4503 | ZMYM2 |
Zornitza Stark gene: ZMYM2 was added gene: ZMYM2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZMYM2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ZMYM2 were set to 32891193 Phenotypes for gene: ZMYM2 were set to Congenital anomalies of kidney and urinary tract; Neurodevelopmental disorder Review for gene: ZMYM2 was set to GREEN Added comment: Heterozygous pathogenic (pLoF) ZMYM2 variants have been reported in individuals with syndromic presentation including CAKUT (in several cases) and variable neurological manifestations among extra-renal features. -- Connaughton et al (2020 - PMID: 32891193) report on 19 individuals (from 15 unrelated families) with heterozygous pathogenic ZMYM2 variants. Affected individuals from 7 families presented with CAKUT while all of them displayed extra-renal features. Neurological manifestations were reported in 16 individuals from 14 families (data not available for 1 fam), among others hypotonia (3/14 fam), speech delay (4/14 fam), global DD (9/14 fam), ID (4/14 fam), microcephaly (4/14 fam). ASD was reported in 4 fam (4 indiv). Seizures were reported in 2 fam (2 indiv). Variable other features included cardiac defects, facial dysmorphisms, small hands and feet with dys-/hypo-plastic nails and clinodactyly. 14 pLoF variants were identified, in most cases as de novo events (8 fam). In 2 families the variant was inherited from an affected parent. Germline mosaicism occurred in 1 family. The human disease features were recapitulated in a X. tropicalis morpholino knockdown, with expression of truncating variants failing to rescue renal and craniofacial defects. Heterozygous Zmym2-deficient mice also recapitulated the features of CAKUT. ZMYM2 (previously ZNF198) encodes a nuclear zinc finger protein localizing to the nucleus (and PML nuclear body). It has previously been identified as transcriptional corepressor interacting with nuclear receptors and the LSD1-CoREST-HDAC1 complex. It has also been shown to interact with FOXP transcription factors. The authors provide evidence for loss of interaction of the truncated ZMYM2 with FOXP1 (mutations in the latter having recently been reported in syndromic CAKUT). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4483 | LMNB1 | Zornitza Stark Phenotypes for gene: LMNB1 were changed from to Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4482 | LMNB1 | Zornitza Stark reviewed gene: LMNB1: Rating: GREEN; Mode of pathogenicity: Other; Publications: 32910914, 16951681, 19151023; Phenotypes: Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis, Leukodystrophy, adult-onset, autosomal dominant, MIM#169500; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4449 | XRCC2 | Zornitza Stark Phenotypes for gene: XRCC2 were changed from to Fanconi anemia, complementation group U, MIM# 617247 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4445 | XRCC2 | Zornitza Stark reviewed gene: XRCC2: Rating: AMBER; Mode of pathogenicity: None; Publications: 27208205, 22232082, 11118202; Phenotypes: Fanconi anemia, complementation group U, MIM# 617247; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4392 | SLC25A46 |
Zornitza Stark changed review comment from: Age of onset is variable, but childhood onset described. Ataxia is a feature.; to: Hereditary motor and sensory neuropathy type VIB is an autosomal recessive complex progressive neurologic disorder characterized mainly by early-onset optic atrophy resulting in progressive visual loss and peripheral axonal sensorimotor neuropathy with highly variable age at onset and severity. Affected individuals also have cerebellar or pontocerebellar atrophy on brain imaging, and they show abnormal movements, such as ataxia, dysmetria, and myoclonus. At least 10 unrelated families reported, supportive functional data. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4309 | OCA2 |
Elena Savva changed review comment from: Single variant found causing AD OCA - p.G780S in two families (Lee, 2020) -> GOF suggested Complete penetrance for oculocutaneous albininism but variable expressivity (PMID: 24518832). No variable expressivity or incomplete penetrance reported in GeneReviews. Loss of function; to: Single variant found causing AD OCA - p.G780S in two families (Lee, 2020) -> GOF suggested Complete penetrance for oculocutaneous albininism but variable expressivity (PMID: 24518832). No variable expressivity or incomplete penetrance reported in GeneReviews. Loss of function 2.7kb deletion is very common in sub-Saharan African populations (GeneReviews) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4275 | SLC20A1 | Zornitza Stark Phenotypes for gene: SLC20A1 were changed from to Bladder-Exstrophy-Epispadias Complex (BEEC) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4272 | SLC20A1 | Zornitza Stark reviewed gene: SLC20A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 32850778, 27013921; Phenotypes: Bladder-Exstrophy-Epispadias Complex (BEEC); Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4256 | SVIL | Melanie Marty edited their review of gene: SVIL: Added comment: Four patients from two unrelated consanguineous families with a childhood/adolescence onset of a myopathy associated with homozygous loss-of-function mutations in SVIL. Wide neck, anteverted shoulders and prominent trapezius muscles together with variable contractures were characteristic features. Functional studies on muscle biopsies showed complete loss protein in muscle fibres by western blot.; Changed rating: AMBER | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4250 | SVIL |
Melanie Marty gene: SVIL was added gene: SVIL was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SVIL was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SVIL were set to 32779703 Phenotypes for gene: SVIL were set to myopathy Penetrance for gene: SVIL were set to unknown Review for gene: SVIL was set to GREEN Added comment: Four patients from two unrelated consanguineous families with a childhood/adolescence onset of a myopathy associated with homozygous loss-of-function mutations in SVIL. Wide neck, anteverted shoulders and prominent trapezius muscles together with variable contractures were characteristic features. Functional studies on muscle biopsies showed complete loss protein in muscle fibres by western blot. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4232 | NDUFB10 | Zornitza Stark Phenotypes for gene: NDUFB10 were changed from fatal infantile lactic acidosis; cardiomyopathy to fatal infantile lactic acidosis; cardiomyopathy; Mitochondrial complex I deficiency nuclear type 35 (MC1DN35), MIM#619003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4231 | NDUFB10 | Zornitza Stark edited their review of gene: NDUFB10: Changed phenotypes: fatal infantile lactic acidosis, cardiomyopathy, Mitochondrial complex I deficiency nuclear type 35 (MC1DN35), MIM#619003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4230 | MCM10 |
Zornitza Stark gene: MCM10 was added gene: MCM10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MCM10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MCM10 were set to 32865517 Phenotypes for gene: MCM10 were set to Susceptibility to CMV Review for gene: MCM10 was set to RED Added comment: Compound heterozygous variants in minichromosomal maintenance complex member 10 (MCM10) reported as a cause of NK-cell deficiency in a child with fatal susceptibility to CMV. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4121 | UFC1 |
Paul De Fazio gene: UFC1 was added gene: UFC1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UFC1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UFC1 were set to 29868776; 30552426 Phenotypes for gene: UFC1 were set to Neurodevelopmental disorder with spasticity and poor growth (MIM#618076) Review for gene: UFC1 was set to GREEN gene: UFC1 was marked as current diagnostic Added comment: PMID 29868776: 8 affected individuals from 4 families reported. 7 were described to be postnatally microcephalic (at or below 3rd percentile). One was -5.1SD and one was -3.6SD. SD values for the others weren't provided. The following head circumference measurements were provided for 6 of the affecteds: 51cm at 16yo; 50cm at 19yo; 42.5cm at 12mo, 45cm at 28mo, 45.2cm at 7yo; 45cm at 4yo. 3 of the families were consanguineous Saudi families with the same homozygous missense variant. In vitro functional expression studies showed that both mutations caused impaired thioester binding with UFM1. Patient cells also showed decreased UFC1 intermediate formation with UFM1. The decrease in function was consistent with a hypomorphic allele, and the authors suggested that complete loss of function would be embryonic lethal. PMID 30552426: 1 more individual with epileptic encephalopathy reported with a different homozygous missense variant in UFC1. The patient had microcephaly <3rd percentile. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4101 | TRPM7 | Zornitza Stark Phenotypes for gene: TRPM7 were changed from {Amyotrophic lateral sclerosis-parkinsonism/dementia complex, susceptibility to}, MIM# 105500 to {Amyotrophic lateral sclerosis-parkinsonism/dementia complex, susceptibility to}, MIM# 105500; Cardiac arrhythmia, stillbirth | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4097 | TRPM7 | Zornitza Stark edited their review of gene: TRPM7: Added comment: Ion channel expressed in the nervous and cardiac systems. The variant associated with ALS/dementia in the Guam population, p.Thr1482Ile is present in >23,000 hets in gnomad, which is out of keeping for a rare Mendelian disorder. Note recent publication associating missense variants with cardiac arrhythmia and stillbirth, with some functional data provided to substantiate effect of variant on protein function but not necessarily establish gene-disease association.; Changed rating: AMBER; Changed publications: 32503408, 31423533; Changed phenotypes: {Amyotrophic lateral sclerosis-parkinsonism/dementia complex, susceptibility to}, MIM# 105500, Cardiac arrhythmia, stillbirth; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4091 | ZFYVE19 |
Arina Puzriakova gene: ZFYVE19 was added gene: ZFYVE19 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZFYVE19 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ZFYVE19 were set to 32737136 Phenotypes for gene: ZFYVE19 were set to Cholestasis Review for gene: ZFYVE19 was set to GREEN Added comment: PMID: 32737136 (2020) - Nine Han Chinese children from seven families with biallelic, predicted complete LoF variants in ZFYVE19. All patients had high-GGT intrahepatic cholestasis, portal hypertension, and histopathological features of the ductal plate malformation/congenital hepatic fibrosis. ZFYVE19 depletion in cultured cells from one patient yielded centriolar and axonemal abnormalities, and immunostaining for two ciliary proteins DCDC2 and ACALT showed abnormal localisation in patient cholangiocytes, indicating this as a novel ciliopathy disorder. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3982 | KIF5C | Zornitza Stark Phenotypes for gene: KIF5C were changed from to Cortical dysplasia, complex, with other brain malformations 2, MIM# 615282 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3979 | KIF5C | Zornitza Stark reviewed gene: KIF5C: Rating: GREEN; Mode of pathogenicity: None; Publications: 23603762, 23033978, 32562872; Phenotypes: Cortical dysplasia, complex, with other brain malformations 2, MIM# 615282; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3979 | KIF2A | Zornitza Stark Phenotypes for gene: KIF2A were changed from to Cortical dysplasia, complex, with other brain malformations 3, MIM# 615411 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3976 | KIF2A | Zornitza Stark reviewed gene: KIF2A: Rating: GREEN; Mode of pathogenicity: None; Publications: 23603762, 27896282, 27747449, 29077851, 31919497; Phenotypes: Cortical dysplasia, complex, with other brain malformations 3, MIM# 615411; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3732 | FAM50A |
Zornitza Stark gene: FAM50A was added gene: FAM50A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FAM50A was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) Publications for gene: FAM50A were set to 32703943 Phenotypes for gene: FAM50A were set to Mental retardation syndrome, X-linked, Armfield type (MIM #300261) Review for gene: FAM50A was set to GREEN Added comment: Lee et al (2020 - PMID: 32703943) provide evidence that Armfield X-Linked intellectual disability syndrome is caused by monoallelic FAM50A pathogenic variants. The current review is based only on this reference. The authors provide clinical details on 6 affected individuals from 5 families. Features included postnatal growth delay, DD and ID (6/6 - also evident for those without formal IQ assesment), seizures (3/6 from 2 families), prominent forehead with presence of other facial features and variable head circumference (5th to >97th %le), ocular anomalies (5/6 - strabismus/nystagmus/Axenfeld-Rieger), cardiac (3/6 - ASD/Fallot) and genitourinary anomalies (3/6). In the first of these families (Armfield et al 1999 - PMID: 10398235), linkage analysis followed by additional studies (Sanger, NGS of 718 genes on chrX, X-exome NGS - several refs provided) allowed the identification of a FAM50A variant. Variants in other families were identified by singleton (1 fam) or trio-ES (3 fam). In affected individuals from 3 families, the variant had occurred de novo. Carrier females in the other families were unaffected (based on pedigrees and/or the original publication). XCI was rather biased in most obligate carrier females from the 1st family (although this ranged from 95:5 to 60:40). Missense variants were reported in all affected subjects incl. Trp206Gly, Asp255Gly, Asp255Asn (dn), Glu254Gly (dn), Arg273Trp (dn) (NM_004699.3). Previous studies have demonstrated that FAM50A has ubiquitous expression in human fetal and adult tissues (incl. brain in fetal ones). Immunostaining suggests a nuclear localization for the protein (NIH/3T3 cells). Comparison of protein levels in LCLs from affected males and controls did not demonstrate significant differences. Protein localization for 3 variants (transfection of COS-7 cells) was shown to be similar to wt. Complementation studies in zebrafish provided evidence that the identified variants confer partial loss of function (rescue of the morpholino phenotype with co-injection of wt but not mt mRNA). The zebrafish ko model seemed to recapitulate the abnormal development of cephalic structures and was indicative of diminished/defective neurogenesis. Transcriptional dysregulation was demonstrated in zebrafish (altered levels and mis-splicing). Upregulation of spliceosome effectors was demonstrated in ko zebrafish. Similarly, mRNA expression and splicing defects were demonstrated in LCLs from affected individuals. FAM50A pulldown followed by mass spectrometry in transfected HEK293T cells demonstrated enrichment of binding proteins involved in RNA processing and co-immunoprecipitation assays (transfected U-87 cells) suggested that FAM50A interacts with spliceosome U5 and C-complex proteins. Overall aberrant spliceosome C-complex function is suggested as the underlying pathogenetic mechanism. Several other neurodevelopmental syndromes are caused by variants in genes encoding C-complex affiliated proteins (incl. EFTUD2, EIF4A3, THOC2, etc.). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3698 | FANCD2 | Zornitza Stark Phenotypes for gene: FANCD2 were changed from to Fanconi anemia, complementation group D2, MIM#227646 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3696 | FANCD2 | Michelle Torres reviewed gene: FANCD2: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Fanconi anemia, complementation group D2, MIM#227646; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3668 | NDUFA8 |
Zornitza Stark gene: NDUFA8 was added gene: NDUFA8 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NDUFA8 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NDUFA8 were set to 32385911 Phenotypes for gene: NDUFA8 were set to NDUFA8-related mitochondrial disease; Developmental delay; microcehaly; seizures Review for gene: NDUFA8 was set to RED Added comment: Single individual reported with homozygous variant, fibroblasts showed apparent biochemical defects in mitochondrial complex I. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3653 | CRY1 |
Ee Ming Wong gene: CRY1 was added gene: CRY1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CRY1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CRY1 were set to PMID: 28388406; PMID: 32538895 Phenotypes for gene: CRY1 were set to Attention deficit/hyperactivity disorder (ADHD); Delayed sleep phase disorder (DSPD), Penetrance for gene: CRY1 were set to Incomplete Review for gene: CRY1 was set to GREEN gene: CRY1 was marked as current diagnostic Added comment: - Splice variants identified in 7 families with ADHD and DSPD - Gain of function suggested for CRY1Δ11 (PMID: 28388406) - Loss of function suggested for CRY1Δ6 (HEK293T cells transfected with a Per1::Luc reporter plasmid showed reduced repressor activity compared to WT and CRY1Δ11) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3614 | TUBB2A | Zornitza Stark Phenotypes for gene: TUBB2A were changed from to Cortical dysplasia, complex, with other brain malformations 5 MIM#615763 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3611 | TUBB2A | Zornitza Stark reviewed gene: TUBB2A: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Cortical dysplasia, complex, with other brain malformations 5, MIM# 615763; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3581 | MRPS23 | Zornitza Stark Phenotypes for gene: MRPS23 were changed from Hepatic disease; Combined respiratory chain complex deficienciesHepatic disease; Combined respiratory chain complex deficiencies; Cardiomyopathy; Tubulopathy; Lactic acidosis; Structural brain abnormalities to Hepatic disease; Combined respiratory chain complex deficiencies; Hepatic disease; Combined respiratory chain complex deficiencies; Cardiomyopathy; Tubulopathy; Lactic acidosis; Structural brain abnormalities; Combined oxidative phosphorylation deficiency 45, MIM#618951 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3580 | MRPS23 | Zornitza Stark edited their review of gene: MRPS23: Changed phenotypes: Hepatic disease, Combined respiratory chain complex deficiencies, Cardiomyopathy, Tubulopathy, Lactic acidosis, Structural brain abnormalities, Combined oxidative phosphorylation deficiency 45, MIM#618951 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3502 | MPL | Zornitza Stark Marked gene: MPL as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3502 | MPL | Zornitza Stark Gene: mpl has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3502 | MPL | Zornitza Stark Phenotypes for gene: MPL were changed from to Myelofibrosis with myeloid metaplasia, somatic, MIM#2544503; Thrombocythemia 2, MIM#601977, AD, SMu; Thrombocytopenia, congenital amegakaryocytic, MIM#604498, AR | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3501 | MPL | Zornitza Stark Publications for gene: MPL were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3500 | MPL | Zornitza Stark Mode of inheritance for gene: MPL was changed from Unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3496 | MPL | Chern Lim reviewed gene: MPL: Rating: GREEN; Mode of pathogenicity: None; Publications: 28955303, 26423830; Phenotypes: Myelofibrosis with myeloid metaplasia, somatic, MIM#2544503, Thrombocythemia 2, MIM#601977, AD, SMu, Thrombocytopenia, congenital amegakaryocytic, MIM#604498, AR; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3327 | KIF21B |
Zornitza Stark gene: KIF21B was added gene: KIF21B was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: KIF21B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KIF21B were set to 32415109 Phenotypes for gene: KIF21B were set to Global developmental delay; Intellectual disability; Abnormality of brain morphology; Microcephaly Mode of pathogenicity for gene: KIF21B was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments Review for gene: KIF21B was set to GREEN Added comment: Asselin et al (2020 - PMID: 32415109) report on 4 individuals with KIF21B pathogenic variants. DD/ID (borderline intellectual functioning to severe ID) was a feature in all. Variable other findings included brain malformations (CCA) and microcephaly. 3 missense variants and a 4-bp insertion were identified, in 3 cases as de novo events while in a single subject the variant was inherited from the father who was also affected. The authors provide evidence for a role of KIF21B in the regulation of processes involved in cortical development and deleterious effect of the missense variants impeding neuronal migration and kinesin autoinhibition. Phenotypes specific to variants (e.g. CCA or microcephaly) were recapitulated in animal models. Missense variants are thought to exert a gain-of-function effect. As commented on, the 4-bp duplication (/frameshift) variant might not be pathogenic. In blood sample from the respective individual, RT-qPCR analysis suggested that haploinsufficiency (NMD) applies. Although Kif21b haploinsufficiency in mice was shown to lead to impaired neuronal positioning, the gene might partially tolerate LoF variants as also suggested by 28 such variants in gnomAD. Homozygous Kif21b ko mice display severe morphological abnormalities, partial loss of commissural fibers, cognitive deficits and altered synaptic transmission (several refs to previous studies provided by the authors). Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3323 | EXOC2 |
Zornitza Stark gene: EXOC2 was added gene: EXOC2 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: EXOC2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EXOC2 were set to 32639540 Phenotypes for gene: EXOC2 were set to Global developmental delay; Intellectual disability; Abnormality of the face; Abnormality of brain morphology Review for gene: EXOC2 was set to AMBER Added comment: Van Bergen et al (2020 - PMID: 32639540) report on 3 individuals from 2 families, harboring biallelic EXOC2 mutations. Clinical presentation included DD, ID (severe in 2 subjects from fam1, borderline intellectual functioning in fam2), dysmorphic features and brain abnormalities. Cerebellar anomalies were common to all with a molar tooth sign observed in one (1/3). Other findings limited to subjects from one family included acquired microcephaly, congenital contractures, spastic quadriplegia (each observed 2/3). Previous investigations were in all cases non-diagnostic. WES identified biallelic EXOC2 mutations in all affected individuals. EXOC2 encodes an exocyst subunit. The latter is an octameric complex, component of the membrane transport machinery, required for tethering and fusion of vesicles at the plasma membrane. As discussed ,vesicle transport is important for the development of brain and the function of neurons and glia. Exocyst function is also important for delivery of Arl13b to the primary cilium (biallelic ARL13B mutations cause Joubert syndrome 8) and ciliogenesis. Affected subjects from a broader consanguineous family (fam1) were homozygous for a truncating variant. Fibroblast studies revealed mRNA levels compatible with NMD (further restored in presence of CHX) as well as reduced protein levels. The female belonging to the second non-consanguineous family was found to harbor 2 missense variants in trans configuration. An exocytosis defect was demonstrated in fibroblasts from individuals belonging to both families. Ciliogenesis appeared to be normal, however Arl13b localization/recruitment to the cilia was reduced compared with control cells with the defect rescued upon exogenous expression of wt EXOC2. Mutations in other genes encoding components of the exocyst complex have been previously reported in individuals with relevant phenotypes (e.g. EXOC8 in a boy with features of Joubert s. or EXOC4 in nephrotic syndrome). The authors discuss on the essential role of EXOC2 based on model organism studies (e.g. impaired neuronal membrane traffic, failure of neuronal polarization and neuromuscular junction expansion seen in Drosophila Sec5 (EXOC2) null mutants). Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3308 | SGMS2 |
Bryony Thompson gene: SGMS2 was added gene: SGMS2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: SGMS2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SGMS2 were set to 30779713; 32028018 Phenotypes for gene: SGMS2 were set to Calvarial doughnut lesions with bone fragility with or without spondylometaphyseal dysplasia MIM#126550 Review for gene: SGMS2 was set to GREEN Added comment: 12 patients from 6 unrelated families with the same stopgain variant (p.Arg50*), with osteoporosis that resembles osteogenesis imperfecta. In vitro over-expression assays of the variant demonstrate protein that was completely mislocalized in the cytosolic and nuclear compartments. 2 unrelated families were heterozygous for 2 missense (p.Ile62Ser, p.Met64Arg) with bone fragility and severe short stature, and spondylometaphyseal dysplasia. In vitro assays of each variant demonstrated an enhanced rate of de novo sphingomyelin production by blocking export of a functional enzyme from the endoplasmic reticulum. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3278 | PYCR1 |
Dean Phelan changed review comment from: Aortopathy/Connective tissue review Variants in this gene are associated with Cutis Laxa: Cutis laxa type 2 (ARCL2, [MIM 219200]) is an autosomal-recessive multisystem disorder with prominent connective-tissue features characterized by the appearance of premature aging, particularly wrinkled and lax skin with reduced elasticity. GEL PanelApp: Green in EDS panel - clinical features overlapping EDS Cutis laxa, autosomal recessive, type IIIB (ARCL3B) PMID: 19648921,4076251, 22052856 Cutis laxa, autosomal recessive, type IIB (ARCL2B) PMID: 19576563, 19648921, 9648921, 22052856, 28294978 AR PMID: 27756598: a homozygous mutation in PYCR1 segregating in the family with the affected individuals with complex connective tissue disorder and severe intellectual disability.; to: Aortopathy/Connective tissue review Variants in this gene are associated with Cutis Laxa: Cutis laxa type 2 (ARCL2, [MIM 219200]) is an autosomal-recessive multisystem disorder with prominent connective-tissue features characterized by the appearance of premature aging, particularly wrinkled and lax skin with reduced elasticity. GEL PanelApp: Green in EDS panel - clinical features overlapping EDS Cutis laxa, autosomal recessive, type IIIB (ARCL3B) PMID: 19648921,4076251, 22052856 Cutis laxa, autosomal recessive, type IIB (ARCL2B) PMID: 19576563, 19648921, 9648921, 22052856, 28294978 AR PMID: 27756598: a homozygous mutation in PYCR1 segregating in the family with the affected individuals with complex connective tissue disorder and severe intellectual disability. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3242 | SREBF1 |
Paul De Fazio gene: SREBF1 was added gene: SREBF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SREBF1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: SREBF1 were set to 32497488 Phenotypes for gene: SREBF1 were set to IFAP (ichthyosis follicularis, atrichia, and photophobia) syndrome Review for gene: SREBF1 was set to GREEN gene: SREBF1 was marked as current diagnostic Added comment: 11 unrelated, ethnically diverse individuals with autosomal-dominant IFAP syndrome. 3 different msisense variants identified affecting the same region (residues 527, 528, and 530). Functional studies support impaired function (impaired nuclear translocation of the transcriptionally active form of SREBP1 resulting in lower expression of the SREBP1 variants). Increased keratinocyte apoptosis was observed in patient scalp samples. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3241 | BTG4 |
Ain Roesley gene: BTG4 was added gene: BTG4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BTG4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BTG4 were set to PMID: 32502391 Phenotypes for gene: BTG4 were set to Zygotic cleavage failure (ZCF) Penetrance for gene: BTG4 were set to unknown Added comment: PMID: 32502391 - 4 affecteds from 4 families including 3 consanguineous families. 3 PTVs + 1 splice. - in vitro assays in HELA cells showed all PTVs had complete loss of protein. The missense variant had abolished interaction with CNOT7 - In vivo studies further demonstrated that the process of maternal mRNA decay was disrupted in the zygotes of the affected individuals, which provides a mechanistic explanation for the phenotype of ZCF Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3209 | PPP3R1 | Zornitza Stark Added comment: Comment when marking as ready: Currently just a locus; note multiple mouse models implicating a role for this gene in cardiovascular, renal and brain development. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3196 | EXOC7 |
Zornitza Stark gene: EXOC7 was added gene: EXOC7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EXOC7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EXOC7 were set to 32103185 Phenotypes for gene: EXOC7 were set to brain atrophy; seizures; developmental delay; microcephaly Review for gene: EXOC7 was set to GREEN Added comment: 4 families with 8 affected individuals with brain atrophy, seizures, and developmental delay, and in more severe cases microcephaly and infantile death. Four novel homozygous or comp.heterozygous variants found in EXOC7, which segregated with disease in the families. They showed that EXOC7, a member of the mammalian exocyst complex, is highly expressed in developing human cortex. In addition, a zebrafish model of Exoc7 deficiency recapitulates the human disorder with increased apoptosis and decreased progenitor cells during telencephalon development, suggesting that the brain atrophy in human cases reflects neuronal degeneration. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3185 | MYH8 | Zornitza Stark Phenotypes for gene: MYH8 were changed from to Trismus-pseudocamptodactyly syndrome MIM# 158300; Carney complex variant MIM# 608837 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3182 | MYH8 | Teresa Zhao reviewed gene: MYH8: Rating: GREEN; Mode of pathogenicity: Other; Publications: 28377322, 18049072, 17041932; Phenotypes: Trismus-pseudocamptodactyly syndrome MIM# 158300, Carney complex variant MIM# 608837; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3086 | ARL6IP1 |
Bryony Thompson gene: ARL6IP1 was added gene: ARL6IP1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: ARL6IP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ARL6IP1 were set to 24482476; 31272422; 30980493; 28471035 Phenotypes for gene: ARL6IP1 were set to Spastic paraplegia 61, autosomal recessive MIM#615685 Review for gene: ARL6IP1 was set to GREEN gene: ARL6IP1 was marked as current diagnostic Added comment: At least 4 families reported with paediatric onset complicated spastic paraplegia and neuropathy. Supporting zebrafish model. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3051 | TRIM69 |
Zornitza Stark gene: TRIM69 was added gene: TRIM69 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: TRIM69 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: TRIM69 were set to 22105173 Phenotypes for gene: TRIM69 were set to Susceptibility to herpes simplex encephalitis Review for gene: TRIM69 was set to RED Added comment: One individual with bi-allelic and one individual with mono-allelic variants in this gene described. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3040 | TRPM7 | Zornitza Stark Phenotypes for gene: TRPM7 were changed from to {Amyotrophic lateral sclerosis-parkinsonism/dementia complex, susceptibility to}, MIM# 105500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3038 | TRPM7 | Zornitza Stark reviewed gene: TRPM7: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: {Amyotrophic lateral sclerosis-parkinsonism/dementia complex, susceptibility to}, MIM# 105500; Mode of inheritance: None | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3013 | LEF1 |
Zornitza Stark gene: LEF1 was added gene: LEF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LEF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: LEF1 were set to 32022899 Phenotypes for gene: LEF1 were set to Ectodermal dysplasia, no OMIM# yet Review for gene: LEF1 was set to RED Added comment: In mice, targeted inactivation of the LEF1 gene results in a complete block of development of multiple ectodermal appendages. One report of two unrelated patients with 4q25 de novo deletion encompassing LEF1 , associated with severe oligodontia of primary and permanent dentition, hypotrichosis and hypohidrosis compatible with hypohidrotic ectodermal dysplasia. So far, no pathogenic variants or variations involving the LEF1 gene have been reported in human. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3010 | OTUD7A |
Zornitza Stark gene: OTUD7A was added gene: OTUD7A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: OTUD7A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: OTUD7A were set to 31997314 Phenotypes for gene: OTUD7A were set to Epileptic encephalopathy, no OMIM# yet Review for gene: OTUD7A was set to RED Added comment: One patient with severe global developmental delay, language impairment and epileptic encephalopathy. Homozygous OTUD7A missense variant (c.697C>T, p.Leu233Phe), predicted to alter an ultraconserved amino acid, lying within the OTU catalytic domain. Its subsequent segregation analysis revealed that the parents, presenting with learning disability, and brother were heterozygous carriers. Biochemical assays demonstrated that proteasome complex formation and function were significantly reduced in patient‐derived fibroblasts and in OTUD7A knockout HAP1 cell line. Gene lies in the chromosome 15q13.3 region. Heterozygous microdeletions of chromosome 15q13.3 show incomplete penetrance and are associated with a highly variable phenotype that may include intellectual disability, epilepsy, facial dysmorphism and digit anomalies. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2786 | TOMM70 |
Zornitza Stark gene: TOMM70 was added gene: TOMM70 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: TOMM70 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: TOMM70 were set to 31907385; 32356556 Phenotypes for gene: TOMM70 were set to Severe anaemia, lactic acidosis, developmental delay; White matter abnormalities, developmental delay, regression, movement disorder Review for gene: TOMM70 was set to AMBER Added comment: TOM70 is a member of the TOM complex that transports cytosolic proteins into mitochondria. Bi-allelic disease: one individual reported with compound heterozygous variants in TOMM70 [c.794C>T (p.T265M) and c.1745C>T (p.A582V)]. Clinical features included severe anaemia, lactic acidosis, and developmental delay. Some functional data: in vitro cell model compensatory experiments. Monoallelic disease: de novo mono allelic variants in the C-terminal region of TOMM70 reported in two individuals. While both individuals exhibited shared symptoms including hypotonia, hyperreflexia, ataxia, dystonia, and significant white matter abnormalities, there were differences between the two individuals, most prominently the age of symptom onset, with one experiencing episodes of regression. Some functional data. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2742 | CFAP43 |
Elena Savva gene: CFAP43 was added gene: CFAP43 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CFAP43 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: CFAP43 were set to PMID: 31884020; 28552195; 31004071; 29449551 Phenotypes for gene: CFAP43 were set to Hydrocephalus, normal pressure, 1 236690; Spermatogenic failure 19 617592 Added comment: aka WDR96 PMID: 31884020 - animal models (mouse, frog) demonstrate the protein localizes in ciliary axoneme and is involved in MOTILE cilia movement. LOF CFAP43 caused mucus acucmulation in airways, impaired spermatogenesis and hydrocephalus. PMID: 28552195 - 3x chet (bilallelic PTCs or chet PTC/missense) with abnormal sperm motility. Null mouse models were also infertile. PMID: 31004071 - one family with a heterozygous nonsense and AD inheritance of late onset hydrocephaly (checked in Mutalyzer, variant is NMD predicted). Abnormal cilia observed from mucosa sample. Null mice also show abnormal sperm and dilation of brain ventricles. PMID: 29449551 - reports an additional 10 patients with either homozygous PTCs or chet PTC/missense who were infertile with flagella defects Summary: single report of AD hydrocephaly Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2734 | TAPT1 | Zornitza Stark Phenotypes for gene: TAPT1 were changed from to Osteochondrodysplasia, complex lethal, Symoens-Barnes-Gistelinck type (MIM#616897) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2730 | TAPT1 | Zornitza Stark reviewed gene: TAPT1: Rating: AMBER; Mode of pathogenicity: None; Publications: 26365339; Phenotypes: Osteochondrodysplasia, complex lethal, Symoens-Barnes-Gistelinck type (MIM#616897); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2700 | ATP5E | Zornitza Stark Phenotypes for gene: ATP5E were changed from to Mitochondrial complex V (ATP synthase) deficiency, nuclear type 3 MIM#614053 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2696 | ATP5E | Zornitza Stark reviewed gene: ATP5E: Rating: AMBER; Mode of pathogenicity: None; Publications: 20566710, 27626380, 20026007; Phenotypes: Mitochondrial complex V (ATP synthase) deficiency, nuclear type 3 MIM#614053; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2696 | ATP5D | Zornitza Stark Phenotypes for gene: ATP5D were changed from to Mitochondrial complex V (ATP synthase) deficiency, MIM# 618120 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2693 | ATP5D | Zornitza Stark reviewed gene: ATP5D: Rating: GREEN; Mode of pathogenicity: None; Publications: 29478781; Phenotypes: Mitochondrial complex V (ATP synthase) deficiency, MIM# 618120; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2693 | ATP5A1 | Zornitza Stark Phenotypes for gene: ATP5A1 were changed from to Combined oxidative phosphorylation deficiency 22 616045; Mitochondrial complex V (ATP synthase) deficiency nuclear type 4, 615228 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2689 | ATP5A1 | Zornitza Stark reviewed gene: ATP5A1: Rating: AMBER; Mode of pathogenicity: None; Publications: 23599390; Phenotypes: Combined oxidative phosphorylation deficiency 22 616045, Mitochondrial complex V (ATP synthase) deficiency nuclear type 4, 615228; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2676 | PIK3CG |
Zornitza Stark gene: PIK3CG was added gene: PIK3CG was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PIK3CG was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PIK3CG were set to 32001535; 31554793 Phenotypes for gene: PIK3CG were set to Immune dysregulation; HLH-like; childhood-onset antibody defects; cytopenias; T lymphocytic pneumonitis and colitis Review for gene: PIK3CG was set to GREEN Added comment: Two individuals with complex immunological phenotypes reported and a mouse model. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2659 | SNORA31 |
Zornitza Stark gene: SNORA31 was added gene: SNORA31 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: SNORA31 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SNORA31 were set to 31806906 Phenotypes for gene: SNORA31 were set to Susceptibility to HSV1 encephalitis Review for gene: SNORA31 was set to GREEN Added comment: Five unrelated individuals reported with rare missense variants in this gene, functional data to support susceptibility to herpes simplex encephalitis. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2611 | TBL1Y |
Paul De Fazio changed review comment from: 9 affected males in a single 5-generation pedigree described with Y-linked inheritance pattern. Functional studies show the missense variant causes reduced protein stability. The gene has restricted expression in the cochlea and prostate. Sources: Literature; to: Y-linked inheritance pattern. Complete segregation of a missense variant demonstrated in 9 affected males in a 5-generation pedigree. Functional studies show the missense variant causes reduced protein stability. The gene has restricted expression in the cochlea and prostate. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2607 | FOXF2 |
Hazel Phillimore changed review comment from: Homozygous missense, NM_001452.1: c.325A>T (p.I109F), in a 10 year old girl (consanguineous, parents were first cousins) with profound sensorineural hearing loss (SNHL) associated with incomplete partition type I anomaly of the cochlea. This variant is absent in the gnomAD v2.1.1. In vitro studies indicated instability, shorter half-life of the protein compared to wildtype. Embryonic knockout mouse showed shortened and malformed cochleae, in addition to altered shape of hair cells with innervation and planar cell polarity defects. Homozygous knockout mice do not survive. (Bademci, G. et al. (2019); PMID: 30561639). This gene has also been reported in association with other anomalies including cleft lip, cleft palate, brain anomalies, intestine anomalies, and eye anomalies. Eye anomalies include anterior segment dysgenesis, as shown in mice with variant, W174R, affecting the Fox domain. Homozygote mice do not survive. (McKeone, R. et al. (2011); PMID: 22022403). Sources: Literature; to: Homozygous missense, NM_001452.1: c.325A>T (p.I109F), in a 10 year old girl (consanguineous, parents were first cousins) with profound sensorineural hearing loss (SNHL) associated with incomplete partition type I anomaly of the cochlea. This variant is absent in the gnomAD v2.1.1. In vitro studies indicated instability, shorter half-life of the protein compared to wildtype. Embryonic knockout mouse showed shortened and malformed cochleae, in addition to altered shape of hair cells with innervation and planar cell polarity defects. Homozygous knockout mice do not survive. (Bademci, G. et al. (2019); PMID: 30561639). This gene has also been reported in association with other anomalies including cleft lip, cleft palate, brain anomalies, intestine anomalies, and eye anomalies. Eye anomalies include anterior segment dysgenesis, as shown in mice with variant, W174R, affecting the Fox domain. Homozygote mice do not survive. (McKeone, R. et al. (2011); PMID: 22022403). Previous names for FOXF2 include FKHL6 and FREAC2. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2607 | FOXF2 |
Hazel Phillimore gene: FOXF2 was added gene: FOXF2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FOXF2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FOXF2 were set to PMID: 30561639; 22022403 Phenotypes for gene: FOXF2 were set to profound sensorineural hearing loss (SNHL); cochlea malformations; incomplete partition type I anomaly of the cochlea Review for gene: FOXF2 was set to AMBER Added comment: Homozygous missense, NM_001452.1: c.325A>T (p.I109F), in a 10 year old girl (consanguineous, parents were first cousins) with profound sensorineural hearing loss (SNHL) associated with incomplete partition type I anomaly of the cochlea. This variant is absent in the gnomAD v2.1.1. In vitro studies indicated instability, shorter half-life of the protein compared to wildtype. Embryonic knockout mouse showed shortened and malformed cochleae, in addition to altered shape of hair cells with innervation and planar cell polarity defects. Homozygous knockout mice do not survive. (Bademci, G. et al. (2019); PMID: 30561639). This gene has also been reported in association with other anomalies including cleft lip, cleft palate, brain anomalies, intestine anomalies, and eye anomalies. Eye anomalies include anterior segment dysgenesis, as shown in mice with variant, W174R, affecting the Fox domain. Homozygote mice do not survive. (McKeone, R. et al. (2011); PMID: 22022403). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2458 | KLHL24 | Zornitza Stark Phenotypes for gene: KLHL24 were changed from Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy to Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy; Hypertrophic cardiomyopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2440 | REC114 |
Michelle Torres gene: REC114 was added gene: REC114 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: REC114 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: REC114 were set to 30388401; 31704776 Phenotypes for gene: REC114 were set to Female infertility Review for gene: REC114 was set to GREEN Added comment: Three variants reported are either within or flanking exon 4. - One hom patient (splice) had a miscarriage, 2 spontaneous complete hydatidiform moles, and 1 complete hydatidiform mole following intrauterine sperm injection (PMID: 30388401) - Two hom unrelated patients from consanguineous families with abnormal pronuclear formation during fertilisation and subsequent early embrionic arrest resulting in female infertility. Both variants (1 missense and 1 splice) were shown to result in LoF (PMID: 31704776) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2392 | SOD2 | Zornitza Stark Phenotypes for gene: SOD2 were changed from {Microvascular complications of diabetes 6} 612634 to {Microvascular complications of diabetes 6} 612634; Lethal neonatal dilated cardiomyopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2364 | CFAP65 |
Daniel Flanagan gene: CFAP65 was added gene: CFAP65 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CFAP65 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CFAP65 were set to 31501240; 31413122 Phenotypes for gene: CFAP65 were set to Spermatogenic failure 40 618664 Penetrance for gene: CFAP65 were set to unknown Review for gene: CFAP65 was set to GREEN gene: CFAP65 was marked as current diagnostic Added comment: 9 patients with multiple morphological abnormalities of the sperm flagella (MMAF) or completely immotile spermatozoa, in which, homozygous or compound heterozygous truncating CFAP65 variants were identified. Cfap65-mutated male mice displayed typical MMAF phenotypes with severe morphological abnormalities of the sperm flagella (PMID: 31501240, 31413122). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2360 | BAZ2B |
Zornitza Stark gene: BAZ2B was added gene: BAZ2B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BAZ2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: BAZ2B were set to 31999386; 28135719; 25363768 Phenotypes for gene: BAZ2B were set to Intellectual disability; autism Review for gene: BAZ2B was set to GREEN Added comment: Postulated as a candidate gene for ID/ASD by large-scale studies. Case series reports two individuals with small CNVs and and six with SNVs, mostly LoF type variants. Although the gene is generally intolerant of LoF, some LoF variants present in gnomad ?incomplete penetrance. Additional reported features were inconsistent Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2279 | SLC18A2 |
Zornitza Stark gene: SLC18A2 was added gene: SLC18A2 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: SLC18A2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC18A2 were set to 23363473; 31240161; 26497564 Phenotypes for gene: SLC18A2 were set to Parkinsonism-dystonia, infantile, 2, MIM# 618049 Review for gene: SLC18A2 was set to GREEN Added comment: At least three unrelated families reported, potential treatment implications Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2259 | MARS2 | Zornitza Stark changed review comment from: 1 family with 2 sibs with combined oxidative phosphorylation deficiency-25 (with ID) with compound heterozygous mutations in the MARS2 gene. Patient fibroblasts showed decreased activities of mitochondrial complexes I and IV, consistent with a mitochondrial translation defect. Immunoblot analysis showed reduced MARS2 protein levels as well as reduced levels of selected subunits of complexes I and IV.; to: 1 family with 2 sibs with combined oxidative phosphorylation deficiency-25 (with ID) with compound heterozygous mutations in the MARS2 gene. Patient fibroblasts showed decreased activities of mitochondrial complexes I and IV, consistent with a mitochondrial translation defect. Immunoblot analysis showed reduced MARS2 protein levels as well as reduced levels of selected subunits of complexes I and IV. Spastic ataxia association: note complex chromosomal rearrangements rather than SNVs reported in group of 54 French Canadians. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2204 | PET117 |
Zornitza Stark gene: PET117 was added gene: PET117 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: PET117 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PET117 were set to 28386624 Phenotypes for gene: PET117 were set to Developmental delay; Regression; Complex IV deficiency Review for gene: PET117 was set to RED Added comment: Two siblings reported, some functional data. PET117 postulated to be a Complex IV assembly factor. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2176 | MRPS23 | Zornitza Stark Phenotypes for gene: MRPS23 were changed from Hepatic disease; Combined respiratory chain complex deficiencies to Hepatic disease; Combined respiratory chain complex deficienciesHepatic disease; Combined respiratory chain complex deficiencies; Cardiomyopathy; Tubulopathy; Lactic acidosis; Structural brain abnormalities | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2173 | MRPS23 | Zornitza Stark edited their review of gene: MRPS23: Added comment: Four families reported.; Changed rating: GREEN; Changed publications: 26741492, 17873122, 25663021, 28752220; Changed phenotypes: Hepatic disease, Combined respiratory chain complex deficiencies, Cardiomyopathy, Tubulopathy, Lactic acidosis, Structural brain abnormalities | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2173 | MIEF2 |
Zornitza Stark gene: MIEF2 was added gene: MIEF2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: MIEF2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MIEF2 were set to 29361167 Phenotypes for gene: MIEF2 were set to Progressive muscle weakness; Exercise intolerance; Ragged red and COX negative fibres; Complex I and IV deficiency Review for gene: MIEF2 was set to RED Added comment: Single individual reported. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2170 | COX5A |
Zornitza Stark gene: COX5A was added gene: COX5A was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: COX5A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COX5A were set to 2824752 Phenotypes for gene: COX5A were set to pulmonary arterial hypertension; lactic acidemia; failure to thrive; isolated complex IV deficiency Review for gene: COX5A was set to RED Added comment: Single family reported. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2070 | CFHR2 | Zornitza Stark Phenotypes for gene: CFHR2 were changed from to C3 glomerulopathy; C3G; Immune complex MPGN; IC-MPGN | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2067 | CFHR2 | Zornitza Stark reviewed gene: CFHR2: Rating: GREEN; Mode of pathogenicity: None; Publications: 24334459, 23728178, 20800271; Phenotypes: C3 glomerulopathy, C3G, Immune complex MPGN, IC-MPGN; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2067 | CFB | Zornitza Stark Phenotypes for gene: CFB were changed from Complement factor B deficiency, MIM# 615561 to Complement factor B deficiency, MIM# 615561; {Hemolytic uremic syndrome, atypical, susceptibility to, 4} 612924 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2063 | CFB | Zornitza Stark changed review comment from: Single individual reported, supportive immunophenotyping data.; to: Single individual reported with bi-allelic variants and complement deficiency, supportive immunophenotyping data. Mono-allelic variants linked to susceptibility to aHUS. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2063 | CFB | Zornitza Stark edited their review of gene: CFB: Changed rating: GREEN; Changed publications: 24152280, 17182750; Changed phenotypes: Complement factor B deficiency, MIM# 615561, {Hemolytic uremic syndrome, atypical, susceptibility to, 4} 612924; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2063 | CFB | Zornitza Stark Phenotypes for gene: CFB were changed from to Complement factor B deficiency, MIM# 615561 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2059 | CFB | Zornitza Stark reviewed gene: CFB: Rating: AMBER; Mode of pathogenicity: None; Publications: 24152280; Phenotypes: Complement factor B deficiency, MIM# 615561; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2013 | IL6ST |
Zornitza Stark changed review comment from: Also known as gp130. Two families with bi-allelic missense variants and immunological phenotype described initially. More recently, five individuals from three families reported with a more complex Stuve-Wiedemann-like phenotype reported, including skeletal dysplasia and neonatal lung dysfunction with additional features such as congenital thrombocytopenia, eczematoid dermatitis, renal abnormalities, and defective acute-phase response. These three families had bi-allelic LoF variants (nonsense and canonical splice site). Several mouse models support gene-disease association. Sources: Expert list; to: Also known as gp130. Two families with bi-allelic missense variants and immunological phenotype described initially. More recently, five individuals from three families reported with a more complex Stuve-Wiedemann-like phenotype reported, including skeletal dysplasia and neonatal lung dysfunction with additional features such as congenital thrombocytopenia, eczematoid dermatitis, renal abnormalities, and defective acute-phase response. These three families had bi-allelic LoF variants (nonsense and canonical splice site). Several mouse models support gene-disease association. 2020: 12 individuals from 8 unrelated families with seven different mono-allelic truncating variants, dominant negative effect proposed. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2009 | RFWD3 | Zornitza Stark Phenotypes for gene: RFWD3 were changed from to Fanconi anemia, complementation group W, MIM# 617784 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2005 | RFWD3 | Zornitza Stark reviewed gene: RFWD3: Rating: RED; Mode of pathogenicity: None; Publications: 28691929; Phenotypes: Fanconi anemia, complementation group W, MIM# 617784; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2005 | MAD2L2 |
Zornitza Stark gene: MAD2L2 was added gene: MAD2L2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: MAD2L2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MAD2L2 were set to 27500492 Phenotypes for gene: MAD2L2 were set to Fanconi anemia, complementation group V, MIM# 617243 Review for gene: MAD2L2 was set to RED Added comment: Single family reported. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2004 | UBE2T | Zornitza Stark Phenotypes for gene: UBE2T were changed from to Fanconi anemia, complementation group T, MIM# 616435 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2000 | UBE2T | Zornitza Stark reviewed gene: UBE2T: Rating: AMBER; Mode of pathogenicity: None; Publications: 26046368; Phenotypes: Fanconi anemia, complementation group T, MIM# 616435; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1923 | IL6ST |
Zornitza Stark gene: IL6ST was added gene: IL6ST was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: IL6ST was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: IL6ST were set to 28747427; 30309848; 12370259; 16041381; 31914175 Phenotypes for gene: IL6ST were set to Hyper-IgE recurrent infection syndrome 4, autosomal recessive, MIM# 618523; Stuve-Wiedemann-like syndrome: skeletal dysplasia, neonatal lung dysfunction, thrombocytopenia, dermatitis, defective acute-phase response. Review for gene: IL6ST was set to GREEN Added comment: Also known as gp130. Two families with bi-allelic missense variants and immunological phenotype described initially. More recently, five individuals from three families reported with a more complex Stuve-Wiedemann-like phenotype reported, including skeletal dysplasia and neonatal lung dysfunction with additional features such as congenital thrombocytopenia, eczematoid dermatitis, renal abnormalities, and defective acute-phase response. These three families had bi-allelic LoF variants (nonsense and canonical splice site). Several mouse models support gene-disease association. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1900 | NSMCE2 |
Tiong Tan gene: NSMCE2 was added gene: NSMCE2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NSMCE2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NSMCE2 were set to 25105364 Phenotypes for gene: NSMCE2 were set to SECKEL SYNDROME 10 Penetrance for gene: NSMCE2 were set to Complete Review for gene: NSMCE2 was set to AMBER Added comment: Biallelic hypomorphic variants in two unrelated women with microcephalic primordial dwarfism, insulin-resistant diabetes, fatty liver, and hypertriglyceridemia developing in childhood; and primary gonadal failure. Good quality functional evidence. No additional confirmatory cases since 2014 publication Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1896 | PLEKHA5 |
Tiong Tan gene: PLEKHA5 was added gene: PLEKHA5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLEKHA5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PLEKHA5 were set to 29805042 Phenotypes for gene: PLEKHA5 were set to cleft lip; cleft palate Penetrance for gene: PLEKHA5 were set to Complete Review for gene: PLEKHA5 was set to GREEN Added comment: Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1845 | AGTPBP1 |
Zornitza Stark gene: AGTPBP1 was added gene: AGTPBP1 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: AGTPBP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: AGTPBP1 were set to 30420557 Phenotypes for gene: AGTPBP1 were set to Early onset cerebellar atrophy, developmental delay, and feeding and respiratory difficulties, severe motor neuronopathy; Neurodegeneration, childhood-onset, with cerebellar atrophy, 618276 Review for gene: AGTPBP1 was set to GREEN Added comment: Thirteen individuals with bi-allelic variants in this gene, complex neurological phenotype of dev delay/ID, cerebellar atrophy and neuropathy, severe progressive course in six. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1842 | ADGRG6 | Zornitza Stark edited their review of gene: ADGRG6: Added comment: Three families reported originally with severe prenatal-onset arthrogryposis (PMID: 26004201), one family with more complex neurological phenotype (PMID:30549416).; Changed rating: GREEN; Changed publications: 30549416, 26004201; Changed phenotypes: Lethal congenital contracture syndrome 9, OMIM #616503; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1841 | EIF2AK2 |
Zornitza Stark gene: EIF2AK2 was added gene: EIF2AK2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EIF2AK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: EIF2AK2 were set to 32197074 Phenotypes for gene: EIF2AK2 were set to Intellectual disability; white matter abnormalities; ataxia; regression with febrile illness Review for gene: EIF2AK2 was set to GREEN Added comment: Eight individuals with de novo variants and complex neurodevelopmental phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1836 | GNB2 |
Sue White gene: GNB2 was added gene: GNB2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GNB2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: GNB2 were set to 31698099 Phenotypes for gene: GNB2 were set to intellectual disability; dysmorphic features Penetrance for gene: GNB2 were set to Complete Review for gene: GNB2 was set to AMBER Added comment: single report of patient with de novo missense variant in GNB2 and intellectual disability. Emerging evidence of other de no missense variants in GNB2 and ID Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1834 | NRROS |
Sue White gene: NRROS was added gene: NRROS was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NRROS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NRROS were set to 32100099; 32197075 Phenotypes for gene: NRROS were set to neurodegeneration; intracranial calcification; epilepsy Penetrance for gene: NRROS were set to Complete Review for gene: NRROS was set to GREEN Added comment: normal development or mild developmental delay until onset of regression around age of 1 concurrent with epilepsy biallelic LOF mutations with functional evidence of pathogenicity Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1821 | SLC25A10 |
Zornitza Stark gene: SLC25A10 was added gene: SLC25A10 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: SLC25A10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC25A10 were set to 29211846 Phenotypes for gene: SLC25A10 were set to Intractable epileptic encephalopathy Review for gene: SLC25A10 was set to AMBER Added comment: One case with intractable epileptic encephalopathy with complex I deficiency, with biallelic variants. Yeast SLC25A10 ortholog lack-of-function causes impairment in mitochondrial respiration, reduced mtDNA copy number and oxidative stress vulnerability. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1815 | PTCD3 |
Zornitza Stark gene: PTCD3 was added gene: PTCD3 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: PTCD3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PTCD3 were set to 30607703; 19427859 Phenotypes for gene: PTCD3 were set to Intellectual disability; optic atrophy; Leigh-like syndrome Review for gene: PTCD3 was set to AMBER Added comment: One compound heterozygote case and functional assays. Essential subunit of oxidative phosphorylation (OXPHOS) complexes. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1809 | OXA1L |
Zornitza Stark gene: OXA1L was added gene: OXA1L was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: OXA1L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: OXA1L were set to 30201738; 16435202 Phenotypes for gene: OXA1L were set to Encephalopathy; hypotonia; developmental delay Review for gene: OXA1L was set to AMBER Added comment: Single family reported with biochemical and molecular analyses of patient skeletal muscle and fibroblasts. In vitro functional assays in human cell lines, Drosophila model, and yeast-based assays. Loss of function affects oxidative phosphorylation complexes IV and V. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1807 | NSUN3 |
Zornitza Stark gene: NSUN3 was added gene: NSUN3 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: NSUN3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NSUN3 were set to 27356879 Phenotypes for gene: NSUN3 were set to combined mitochondrial respiratory chain complex deficiency Review for gene: NSUN3 was set to AMBER Added comment: A single compound heterozygous case. Patient-derived fibroblasts exhibited severe defects in mitochondrial translation that can be rescued by exogenous expression of NSun3. In vitro functional assays also conducted. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1805 | NDUFB10 |
Zornitza Stark gene: NDUFB10 was added gene: NDUFB10 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: NDUFB10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NDUFB10 were set to 28040730; 32025618 Phenotypes for gene: NDUFB10 were set to fatal infantile lactic acidosis; cardiomyopathy Review for gene: NDUFB10 was set to AMBER Added comment: Single compound heterozygote case and mitochondrial phenotype. Assays of respiratory chain enzyme activities and functions in patient tissues/fibroblasts and in vitro functional assays. Plant model system supporting mitochondrial complex I dysfunction. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1803 | NDUFA4 | Zornitza Stark changed review comment from: Single family and a lot of functional data. Encodes a complex IV subunit.; to: Single family and a lot of functional data. Unpublished data on another family. Encodes a complex IV subunit. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1777 | TIMMDC1 |
Zornitza Stark gene: TIMMDC1 was added gene: TIMMDC1 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: TIMMDC1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TIMMDC1 were set to 28604674; 30981218 Phenotypes for gene: TIMMDC1 were set to Mitochondrial complex I deficiency, nuclear type 31 MIM#618251 Review for gene: TIMMDC1 was set to AMBER Added comment: A deep intronic variant (c.597-1340A>G, only detectable by WGS) that causes a splicing aberration was identified in a homozygous state in 3 unrelated cases from different ethnic backgrounds. A patient with Leigh-like syndrome had a homozygous stopgain variant in PDHX and a homozygous stopgain variant in TIMMDC1 (p.Arg225*). The TIMMDC1 mutant protein could still rescue complex I assembly in TIMMDC1 knockout cells and the patient’s clinical phenotype was not clearly distinct from that of other patients with the same PDHX defect. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1771 | COX6A2 |
Zornitza Stark gene: COX6A2 was added gene: COX6A2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: COX6A2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COX6A2 were set to 31155743; 23460811 Phenotypes for gene: COX6A2 were set to Mitochondrial complex IV deficiency, MIM# 220110 Review for gene: COX6A2 was set to GREEN Added comment: Two unrelated families and two mouse models. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1765 | UQCRQ | Zornitza Stark Phenotypes for gene: UQCRQ were changed from to Mitochondrial complex III deficiency, nuclear type 4, MIM# 615159 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1761 | UQCRQ | Zornitza Stark reviewed gene: UQCRQ: Rating: AMBER; Mode of pathogenicity: None; Publications: 18439546; Phenotypes: Mitochondrial complex III deficiency, nuclear type 4, MIM# 615159; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1761 | UQCRC2 | Zornitza Stark Phenotypes for gene: UQCRC2 were changed from to Mitochondrial complex III deficiency, nuclear type 5, MIM# 615160 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1757 | UQCRC2 | Zornitza Stark reviewed gene: UQCRC2: Rating: AMBER; Mode of pathogenicity: None; Publications: 28275242, 23281071; Phenotypes: Mitochondrial complex III deficiency, nuclear type 5, MIM# 615160; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1757 | UQCC3 | Zornitza Stark Phenotypes for gene: UQCC3 were changed from to Mitochondrial complex III deficiency, nuclear type 9, MIM# 616111 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1753 | UQCC3 | Zornitza Stark reviewed gene: UQCC3: Rating: AMBER; Mode of pathogenicity: None; Publications: 25008109, 28804536; Phenotypes: Mitochondrial complex III deficiency, nuclear type 9, MIM# 616111; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1744 | SLC25A32 |
Zornitza Stark gene: SLC25A32 was added gene: SLC25A32 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: SLC25A32 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC25A32 were set to 26933868; 28443623 Phenotypes for gene: SLC25A32 were set to Exercise intolerance, riboflavin-responsive, MIM# 616839 Review for gene: SLC25A32 was set to GREEN Added comment: Two unrelated families reported with functional data. Muscle biopsy showed ragged-red fibers and lipid storage mainly in type I oxidative fibers, small type II fibers, and poor immunostaining for succinate dehydrogenase (FAD-dependent mitochondrial respiratory chain complex II). Oral supplementation with riboflavin led to dramatic improvement in the clinical and biologic abnormalities. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1743 | NFS1 | Zornitza Stark Phenotypes for gene: NFS1 were changed from to Complex II/III deficiency; multisystem organ failure | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1739 | NFS1 | Zornitza Stark reviewed gene: NFS1: Rating: RED; Mode of pathogenicity: None; Publications: 24498631; Phenotypes: Complex II/III deficiency, multisystem organ failure; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1739 | NDUFA6 | Zornitza Stark Phenotypes for gene: NDUFA6 were changed from to Mitochondrial complex I deficiency, nuclear type 33, MIM# 618253 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1736 | NDUFA6 | Zornitza Stark reviewed gene: NDUFA6: Rating: GREEN; Mode of pathogenicity: None; Publications: 30245030; Phenotypes: Mitochondrial complex I deficiency, nuclear type 33, MIM# 618253; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1736 | NDUFA4 | Zornitza Stark Phenotypes for gene: NDUFA4 were changed from to Leigh syndrome; Complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1732 | NDUFA4 | Zornitza Stark reviewed gene: NDUFA4: Rating: AMBER; Mode of pathogenicity: None; Publications: 30361421, 28988874, 23746447; Phenotypes: Leigh syndrome, Complex IV deficiency; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1732 | NDUFA13 | Zornitza Stark Phenotypes for gene: NDUFA13 were changed from to Mitochondrial complex I deficiency, nuclear type 28, MIM# 618249 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1728 | NDUFA13 | Zornitza Stark reviewed gene: NDUFA13: Rating: RED; Mode of pathogenicity: None; Publications: 25901006; Phenotypes: Mitochondrial complex I deficiency, nuclear type 28, MIM# 618249; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1583 | TUBA8 | Zornitza Stark Phenotypes for gene: TUBA8 were changed from to Cortical dysplasia, complex, with other brain malformations 8, MIM# 613180 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1579 | TUBA8 | Zornitza Stark reviewed gene: TUBA8: Rating: RED; Mode of pathogenicity: None; Publications: 19896110, 31481326, 28388629; Phenotypes: Cortical dysplasia, complex, with other brain malformations 8, MIM# 613180; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1473 | CEP135 |
Elena Savva changed review comment from: Microcephalic primordial dwarfism - single case Incomplete NMD shown, LOF mechanism; to: Microcephalic primordial dwarfism - single case Incomplete NMD shown, LOF mechanism |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1418 | PNPT1 | Zornitza Stark Added comment: Comment when marking as ready: Those initially presenting with deafness may be at risk of progressive complex neurological course. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1352 | KRT14 | Zornitza Stark Phenotypes for gene: KRT14 were changed from to Epidermolysis bullosa simplex, recessive 1, 601001; Dermatopathia pigmentosa reticularis, 125595; Epidermolysis bullosa simplex, Dowling-Meara type, 131760; Epidermolysis bullosa simplex, Koebner type, 131900; Epidermolysis bullosa simplex, Weber-Cockayne type, 131800; Naegeli-Franceschetti-Jadassohn syndrome, 161000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1348 | KRT14 | Zornitza Stark reviewed gene: KRT14: Rating: GREEN; Mode of pathogenicity: None; Publications: 16960809, 18049449; Phenotypes: Epidermolysis bullosa simplex, recessive 1, 601001, Dermatopathia pigmentosa reticularis, 125595, Epidermolysis bullosa simplex, Dowling-Meara type, 131760, Epidermolysis bullosa simplex, Koebner type, 131900, Epidermolysis bullosa simplex, Weber-Cockayne type, 131800, Naegeli-Franceschetti-Jadassohn syndrome, 161000; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1292 | PLEC | Zornitza Stark Phenotypes for gene: PLEC were changed from to ?Epidermolysis bullosa simplex with nail dystrophy, MIM# 616487; Epidermolysis bullosa simplex with muscular dystrophy, MIM# 226670; Epidermolysis bullosa simplex with pyloric atresia, MIM# 612138; Epidermolysis bullosa simplex, Ogna type MIM#131950; Muscular dystrophy, limb-girdle, autosomal recessive 17, MIM# 613723 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1289 | PLEC | Elena Savva reviewed gene: PLEC: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 22144912; Phenotypes: ?Epidermolysis bullosa simplex with nail dystrophy, Epidermolysis bullosa simplex with muscular dystrophy, Epidermolysis bullosa simplex with pyloric atresia, Epidermolysis bullosa simplex, Ogna type, Muscular dystrophy, limb-girdle; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1220 | NDUFA12 | Zornitza Stark Phenotypes for gene: NDUFA12 were changed from to Mitochondrial complex I deficiency, nuclear type 23 618244 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1216 | NDUFA12 | Zornitza Stark reviewed gene: NDUFA12: Rating: RED; Mode of pathogenicity: None; Publications: 21617257; Phenotypes: Mitochondrial complex I deficiency, nuclear type 23 618244; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1212 | MRPS23 | Zornitza Stark Phenotypes for gene: MRPS23 were changed from to Hepatic disease; Combined respiratory chain complex deficiencies | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1208 | MRPS23 | Zornitza Stark reviewed gene: MRPS23: Rating: RED; Mode of pathogenicity: None; Publications: 26741492; Phenotypes: Hepatic disease, Combined respiratory chain complex deficiencies; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1200 | COX8A | Zornitza Stark Phenotypes for gene: COX8A were changed from to Mitochondrial complex IV deficiency, MIM# 220110 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1196 | COX8A | Zornitza Stark reviewed gene: COX8A: Rating: RED; Mode of pathogenicity: None; Publications: 26685157; Phenotypes: Mitochondrial complex IV deficiency, MIM# 220110; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1164 | SOD2 | Zornitza Stark Phenotypes for gene: SOD2 were changed from to {Microvascular complications of diabetes 6} 612634 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1161 | SOD2 | Zornitza Stark reviewed gene: SOD2: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: {Microvascular complications of diabetes 6} 612634; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1141 | COA3 | Zornitza Stark Phenotypes for gene: COA3 were changed from to Mitochondrial complex IV deficiency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1137 | COA3 | Zornitza Stark reviewed gene: COA3: Rating: RED; Mode of pathogenicity: None; Publications: 25604084; Phenotypes: Mitochondrial complex IV deficiency; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1016 | MAB21L1 |
Sue White gene: MAB21L1 was added gene: MAB21L1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MAB21L1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MAB21L1 were set to 30487245 Phenotypes for gene: MAB21L1 were set to Cerebellar, ocular, craniofacial, and genital syndrome #MIM 618479 Penetrance for gene: MAB21L1 were set to Complete Review for gene: MAB21L1 was set to GREEN Added comment: Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.949 | MACF1 |
Zornitza Stark gene: MACF1 was added gene: MACF1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: MACF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MACF1 were set to 30471716 Phenotypes for gene: MACF1 were set to Lissencephaly 9 with complex brainstem malformation, MIM# 618325 Mode of pathogenicity for gene: MACF1 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments Review for gene: MACF1 was set to GREEN Added comment: Nine individuals (including a pair of twins) reported with de novo variants in this gene. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.924 | CEP89 | Zornitza Stark Phenotypes for gene: CEP89 were changed from to Mitochondrial complex IV deficiency, MIM#220110 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.788 | TDP2 |
Zornitza Stark gene: TDP2 was added gene: TDP2 was added to Mendeliome_VCGS. Sources: Expert list Mode of inheritance for gene: TDP2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TDP2 were set to 31410782; 30109272; 24658003 Phenotypes for gene: TDP2 were set to Spinocerebellar ataxia, autosomal recessive 23; OMIM #616949 Review for gene: TDP2 was set to GREEN Added comment: ID is part of the phenotype: 4 families with 6 affected patients, with functional evidence. 1 family with 3 affected sibs with homozygous splice site mutation in the TDP2 gene. Patient cell extracts showed absence of the full-length TDP2 protein and absence of 5-prime TDP activity, consistent with a loss of function, although 3-prime TDP activity, conferred by TDP1, was normal. In addition, patient lymphoblastoid cells were hypersensitive to the TOP2 poison etoposide. The findings indicated impaired capacity for double-strand break repair. 1 unrelated Egyptian patient with a similar disorder was homozygous for a truncating mutation in the TDP2 gene 1 unrelated Caucasian patient with same homozygous splice site mutation in the TDP2 gene. Western blot analysis did not detect TDP2 protein in patient primary skin fibroblasts. Patient fibroblasts showed an inability to rapidly repair topoisomerase-induced DNA double-strand breaks in the nucleus and also showed a profound hypersensitivity to this type of DNA damage. Complementation of patient cells with recombinant human TDP2 restored normal rates of nuclear DSB repair. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.765 | AGMO |
Sue White gene: AGMO was added gene: AGMO was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: AGMO was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: AGMO were set to 31555905 Phenotypes for gene: AGMO were set to microcephaly; intellectual disability; epilepsy Penetrance for gene: AGMO were set to Complete Review for gene: AGMO was set to GREEN Added comment: biallelic LOF and missense reported Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.709 | NUP214 |
Sue White gene: NUP214 was added gene: NUP214 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: NUP214 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NUP214 were set to 31178128 Phenotypes for gene: NUP214 were set to epileptic encephalopathy; developmental regression; microcephaly Penetrance for gene: NUP214 were set to Complete Review for gene: NUP214 was set to GREEN gene: NUP214 was marked as current diagnostic Added comment: Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.697 | RHOA |
Sue White gene: RHOA was added gene: RHOA was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: RHOA was set to Other Publications for gene: RHOA were set to 31570889 Phenotypes for gene: RHOA were set to normal cognition; leukoencephalopathy; micro-ophthalmia; strabismus; linear hypopigmentation; malar hypoplasia; downslanting palpebral fissures; microstomia Penetrance for gene: RHOA were set to Complete Review for gene: RHOA was set to GREEN gene: RHOA was marked as current diagnostic Added comment: mosaic heterozygous missense variants cause linear hypopigmentation, brain MRI changes with normal cognition, ocular and acral changes Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.684 | TRIM28 |
Zornitza Stark gene: TRIM28 was added gene: TRIM28 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: TRIM28 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TRIM28 were set to 30694527 Phenotypes for gene: TRIM28 were set to Wilm's tumour Review for gene: TRIM28 was set to GREEN Added comment: Eleven individuals with germline variants identified; plus one somatic. Exome sequencing on eight tumor DNA samples from six individuals showed loss-of-heterozygosity (LOH) of the TRIM28-locus by mitotic recombination in seven tumors, suggesting that TRIM28 functions as a tumor suppressor gene in Wilms tumor development. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.649 | ROBO4 |
Zornitza Stark gene: ROBO4 was added gene: ROBO4 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: ROBO4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ROBO4 were set to 30455415 Phenotypes for gene: ROBO4 were set to bicuspid aortic valve; ascending aortic aneurysm; ascending aorta dilatation Review for gene: ROBO4 was set to GREEN Added comment: Two families, functional data, incomplete penetrance. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.536 | UQCRFS1 |
Zornitza Stark gene: UQCRFS1 was added gene: UQCRFS1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: UQCRFS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UQCRFS1 were set to 31883641 Phenotypes for gene: UQCRFS1 were set to Mitochondrial Complex III deficiency; lactic acidosis; fetal bradycardia; hypertrophic cardiomyopathy; alopecia totalis Review for gene: UQCRFS1 was set to GREEN Added comment: Two unrelated families reported plus functional evidence. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.415 | EEF1B2 |
Zornitza Stark gene: EEF1B2 was added gene: EEF1B2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: EEF1B2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EEF1B2 were set to 31845318; 21937992 Phenotypes for gene: EEF1B2 were set to Intellectual disability Review for gene: EEF1B2 was set to AMBER Added comment: 5 individuals from two unrelated families described in the literature so far, no functional data but gene belongs to a family implicated in neurodevelopmental disorders. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.372 | KANK4 |
Zornitza Stark gene: KANK4 was added gene: KANK4 was added to Mendeliome_VCGS. Sources: Expert list Mode of inheritance for gene: KANK4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: KANK4 were set to 25961457 Phenotypes for gene: KANK4 were set to Nephrotic syndrome Review for gene: KANK4 was set to AMBER Added comment: Two individuals from a single family reported; gene belongs to a family implicated in nephrotic syndrome. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.359 | MICB |
Sebastian Lunke changed review comment from: This gene is included in a large number of publications as it plays an central role immunity (MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I CHAIN-RELATED GENE B). However beyond a number of susceptibility associations, it does not appear to have been firmly associated with disease in patients.; to: This gene is included in a large number of publications as it plays an central role immunity (MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I CHAIN-RELATED GENE B). However beyond a number of susceptibility associations, it does not appear to have been firmly associated with disease in patients. https://ghr.nlm.nih.gov/gene/MICB#resources |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.351 | KLHL24 | Tiong Tan Phenotypes for gene: KLHL24 were changed from Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy to Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.350 | KLHL24 | Tiong Tan Phenotypes for gene: KLHL24 were changed from to Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294; dilated cardiomyopathy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.347 | KLHL24 | Tiong Tan reviewed gene: KLHL24: Rating: GREEN; Mode of pathogenicity: None; Publications: 29779254, 30120936; Phenotypes: Epidermolysis bullosa simplex, generalized, with scarring and hair loss OMIM#617294, dilated cardiomyopathy; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.342 | DST | Zornitza Stark Phenotypes for gene: DST were changed from to Neuropathy, hereditary sensory and autonomic, type VI, MIM#614653; Epidermolysis bullosa simplex, autosomal recessive 2, MIM#615425 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.339 | DST | Zornitza Stark reviewed gene: DST: Rating: GREEN; Mode of pathogenicity: None; Publications: 22522446, 30371979, 28468842; Phenotypes: Neuropathy, hereditary sensory and autonomic, type VI, MIM#614653, Epidermolysis bullosa simplex, autosomal recessive 2, MIM#615425; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.324 | TANC2 |
Zornitza Stark gene: TANC2 was added gene: TANC2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: TANC2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TANC2 were set to 31616000 Phenotypes for gene: TANC2 were set to Intellectual disability; autism; epilepsy; dysmorphism Review for gene: TANC2 was set to GREEN Added comment: 19 families with potentially disruptive heterozygous TANC2 variants, including 16 likely gene-disrupting mutations and three intragenic microdeletions. Patients presented with autism, intellectual disability, delayed language and motor development, epilepsy, facial dysmorphism, with complex psychiatric dysfunction or behavioral problems in adult probands or carrier parents. No functional evidence of specific variants, but they show TANC2 is expressed broadly in the human developing brain, especially in excitatory neurons and glial cells, and shows a more restricted pattern in Drosophila glial cells where its disruption affects behavioral outcomes. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.311 | PPP2CA |
Zornitza Stark gene: PPP2CA was added gene: PPP2CA was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: PPP2CA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PPP2CA were set to 30595372 Phenotypes for gene: PPP2CA were set to Neurodevelopmental disorder and language delay with or without structural brain abnormalities; OMIM #618354 Review for gene: PPP2CA was set to GREEN Added comment: 15 unrelated patients with a neurodevelopmental disorder with de novo heterozygous PPP2CA mutations, and 1 with partial deletion of PPP2CA. Functional studies showed complete PP2A dysfunction in 4 individuals with seemingly milder ID, hinting at haploinsufficiency. Ten other individuals showed mutation-specific biochemical distortions, including poor expression, altered binding to the A subunit and specific B-type subunits, and impaired phosphatase activity and C-terminal methylation. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.279 | GRIA2 |
Zornitza Stark gene: GRIA2 was added gene: GRIA2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: GRIA2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: GRIA2 were set to 31300657 Phenotypes for gene: GRIA2 were set to Intellectual disability; autism; Rett-like features; epileptic encephalopathy Review for gene: GRIA2 was set to GREEN Added comment: 28 unrelated patients with ID, ASD, Rett-like features, seizures/EE, and de novo heterozygous GRIA2 mutations. In functional expression studies, mutations led to a decrease in agonist-evoked current mediated by mutant subunits compared to wild-type channels. When GluA2 subunits are co-expressed with GluA1, most GRIA2 mutations cause a decreased current amplitude and some also affect voltage rectification. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.224 | APC2 |
Zornitza Stark gene: APC2 was added gene: APC2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: APC2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: APC2 were set to 31585108 Phenotypes for gene: APC2 were set to Cortical dysplasia, complex, with other brain malformations 10, MIM#618677 Review for gene: APC2 was set to GREEN Added comment: 12 individuals from 8 unrelated families; intellectual disability, seizures, cortical dysplasia including posterior to anterior predominant pattern of lissencephaly, heterotopias, paucity of white matter, thin corpus callosum. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.186 | NDUFB9 | Zornitza Stark Phenotypes for gene: NDUFB9 were changed from to Mitochondrial complex I deficiency, nuclear type 24, MIM#618245 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.182 | NDUFB9 | Zornitza Stark reviewed gene: NDUFB9: Rating: AMBER; Mode of pathogenicity: None; Publications: 22200994; Phenotypes: Mitochondrial complex I deficiency, nuclear type 24, MIM#618245; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.123 | CTNNA2 | Zornitza Stark Phenotypes for gene: CTNNA2 were changed from to Cortical dysplasia, complex, with other brain malformations 9, MIM#618174 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.109 | COX14 | Zornitza Stark Phenotypes for gene: COX14 were changed from to Mitochondrial complex IV deficiency, MIM#220110 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.0 | MPLKIP |
Zornitza Stark gene: MPLKIP was added gene: MPLKIP was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: MPLKIP was set to Unknown |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.0 | MPL |
Zornitza Stark gene: MPL was added gene: MPL was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: MPL was set to Unknown |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||