ClinVar Miner

Submissions for variant NM_002439.5(MSH3):c.2785A>G (p.Ile929Val)

dbSNP: rs759266003
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000812973 SCV000953303 uncertain significance not provided 2025-02-04 criteria provided, single submitter clinical testing This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 929 of the MSH3 protein (p.Ile929Val). This variant is present in population databases (rs759266003, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with MSH3-related conditions. ClinVar contains an entry for this variant (Variation ID: 656531). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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.
Ambry Genetics RCV001016602 SCV001177568 uncertain significance Hereditary cancer-predisposing syndrome 2023-09-26 criteria provided, single submitter clinical testing The p.I929V variant (also known as c.2785A>G), located in coding exon 20 of the MSH3 gene, results from an A to G substitution at nucleotide position 2785. The isoleucine at codon 929 is replaced by valine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
GeneDx RCV000812973 SCV005874831 uncertain significance not provided 2024-08-25 criteria provided, single submitter clinical testing Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates 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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