ClinVar Miner

Submissions for variant NM_001077365.2(POMT1):c.418A>G (p.Met140Val)

dbSNP: rs2131607251
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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 RCV001898363 SCV002161754 uncertain significance Autosomal recessive limb-girdle muscular dystrophy type 2K; Muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B1; Walker-Warburg congenital muscular dystrophy 2021-10-07 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 missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with POMT1-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces methionine with valine at codon 140 of the POMT1 protein (p.Met140Val). The methionine residue is moderately conserved and there is a small physicochemical difference between methionine and valine.

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