ClinVar Miner

Submissions for variant NM_005267.5(GJA8):c.473A>G (p.Lys158Arg)

dbSNP: rs2149015799
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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 RCV002014390 SCV002300006 uncertain significance Cataract 1 multiple types 2021-09-01 criteria provided, single submitter clinical testing In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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 has not been reported in the literature in individuals affected with GJA8-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces lysine with arginine at codon 158 of the GJA8 protein (p.Lys158Arg). The lysine residue is highly conserved and there is a small physicochemical difference between lysine and arginine.
GeneDx RCV002473350 SCV002770134 uncertain significance not provided 2022-12-20 criteria provided, single submitter clinical testing Not observed in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

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