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Ataxia - adult onset v1.4 SCA27B Bryony Thompson Marked STR: SCA27B as ready
Ataxia - adult onset v1.4 SCA27B Bryony Thompson Str: sca27b has been classified as Green List (High Evidence).
Ataxia - adult onset v1.4 SCA27B Bryony Thompson Classified STR: SCA27B as Green List (high evidence)
Ataxia - adult onset v1.4 SCA27B Bryony Thompson Str: sca27b has been classified as Green List (High Evidence).
Ataxia - adult onset v1.3 SCA27B Bryony Thompson STR: SCA27B was added
STR: SCA27B was added to Ataxia - adult onset. Sources: Literature
Mode of inheritance for STR: SCA27B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for STR: SCA27B were set to 37165652; 36516086; 36493768
Phenotypes for STR: SCA27B were set to Spinocerebellar ataxia type 27B MONDO:0012247; Spinocerebellar ataxia 50; late-onset cerebellar ataxias (LOCAs)
Review for STR: SCA27B was set to GREEN
STR: SCA27B was marked as clinically relevant
Added comment: NM_175929.3(FGF14):c.208+239747CTT[X]
Expansions of 250 or more GAA repeat units were associated with late-onset cerebellar ataxia in a French-Canadian (OR: 105.60 [95% CI=31.09-334.20], p<0.001) and a German (OR: 8.76 [95% CI=3.45-20.84], p<0.001) case-control series. Additionally, expanded alleles greater than (GAA)332 are pathogenic and fully penetrant in a combined Australian and German dataset (p = 6.0 × 10−8, OR = 72 [95% CI = 4.3–1,227]). Whereas, alleles in the range of (GAA)250-334 are likely to be pathogenic with reduced penetrance (p = 0.0015, OR = 3.6 [95% CI = 1.6–7.9]).
250-300 repeats in the incompletely penetrant range
>300 is fully penetrant for ataxia
Sources: Literature