ClinVar Miner

Submissions for variant NM_005267.5(GJA8):c.135G>T (p.Trp45Cys)

dbSNP: rs983216627
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001940220 SCV002182728 pathogenic Cataract 1 multiple types 2022-03-03 criteria provided, single submitter clinical testing This sequence change replaces tryptophan, which is neutral and slightly polar, with cysteine, which is neutral and slightly polar, at codon 45 of the GJA8 protein (p.Trp45Cys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with autosomal dominant congenital cataract (Invitae). In at least one individual the variant was observed to be de novo. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. This variant disrupts the p.Trp45 amino acid residue in GJA8. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 18334946, 21228318, 28392901, 29464339). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic.
Juno Genomics, Hangzhou Juno Genomics, Inc RCV001940220 SCV005871447 likely pathogenic Cataract 1 multiple types criteria provided, single submitter clinical testing PM2_Supporting+PM5_Strong+PP3_Strong

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