ClinVar Miner

Submissions for variant NM_000083.3(CLCN1):c.277G>A (p.Glu93Lys)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV003083732 SCV003465863 uncertain significance Congenital myotonia, autosomal recessive form; Congenital myotonia, autosomal dominant form 2022-09-22 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 disrupt the consensus 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 tolerated. This variant has not been reported in the literature in individuals affected with CLCN1-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.006%). This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 93 of the CLCN1 protein (p.Glu93Lys).

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