ClinVar Miner

Submissions for variant NM_000251.2(MSH2):c.2504A>G (p.Asn835Ser) (rs779729016)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000550167 SCV000625381 uncertain significance Hereditary nonpolyposis colon cancer 2017-06-16 criteria provided, single submitter clinical testing This sequence change replaces asparagine with serine at codon 835 of the MSH2 protein (p.Asn835Ser). The asparagine residue is weakly conserved and there is a small physicochemical difference between asparagine and serine. This variant is present in population databases (rs779729016, ExAC 0.02%). This variant has not been reported in the literature in individuals with a MSH2-related disease. 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 serine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, this variant has uncertain impact on MSH2 function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
Ambry Genetics RCV000567964 SCV000676346 uncertain significance Hereditary cancer-predisposing syndrome 2017-09-12 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Insufficient evidence

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