ClinVar Miner

Submissions for variant NM_006946.4(SPTBN2):c.1309C>T (p.Arg437Trp)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV001193661 SCV001362640 likely pathogenic Spinocerebellar ataxia type 5 2019-11-26 criteria provided, single submitter clinical testing Variant summary: SPTBN2 c.1309C>T (p.Arg437Trp) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant was absent in 249430 control chromosomes (gnomAD). c.1309C>T has been reported in the literature as a de novo occurrence in an individual affected with cerebellar ataxia (Nicita_2019). A different variant affecting the same codon (c.1309C>G, p.R437G) has been reported in several patients with Spinocerebellar ataxia type 5 (e.g. PMID: 31617442, 30898343). These data indicate that the variant may be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as likely pathogenic.

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