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Mendeliome v0.8745 TMEM222 Zornitza Stark Phenotypes for gene: TMEM222 were changed from Intellectual disability; Epilepsy; Microcephaly to Neurodevelopmental disorder with motor and speech delay and behavioural abnormalities, MIM# 619470; Intellectual disability; Epilepsy; Microcephaly
Mendeliome v0.8744 TMEM222 Zornitza Stark edited their review of gene: TMEM222: Changed phenotypes: Neurodevelopmental disorder with motor and speech delay and behavioural abnormalities, MIM# 619470, Intellectual disability, Epilepsy, Microcephaly
Mendeliome v0.7550 TMEM222 Zornitza Stark Marked gene: TMEM222 as ready
Mendeliome v0.7550 TMEM222 Zornitza Stark Gene: tmem222 has been classified as Green List (High Evidence).
Mendeliome v0.7550 TMEM222 Zornitza Stark Classified gene: TMEM222 as Green List (high evidence)
Mendeliome v0.7550 TMEM222 Zornitza Stark Gene: tmem222 has been classified as Green List (High Evidence).
Mendeliome v0.7549 TMEM222 Zornitza Stark gene: TMEM222 was added
gene: TMEM222 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TMEM222 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM222 were set to 33824500
Phenotypes for gene: TMEM222 were set to Intellectual disability; Epilepsy; Microcephaly
Review for gene: TMEM222 was set to GREEN
Added comment: Polla et al (2021 - PMID: 33824500) report 17 individuals from 9 unrelated families, with biallelic TMEM222 pathogenic variants. The phenotype included motor, speech delay and moderate to severe ID (as universal features). Other manifestations included hypotonia (10/15), broad gait (5/12), seizures (7/17 - belonging to 6/9 families), MRI abnormalities (5/8). Variable behavioral abnormalities were observed (aggressive behavior, shy character, stereotypic movements etc). Abnormal OFC was a feature in several with microcephaly in 7 subjects from 4 families (measurements not available for all 17). Nonspecific facial features were reported in 10/17.
Sources: Literature