ClinVar Miner

Submissions for variant NM_032578.4(MYPN):c.3763G>A (p.Val1255Met) (rs750655311)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicine RCV000222515 SCV000272187 uncertain significance not specified 2016-03-18 criteria provided, single submitter clinical testing The p.Val1255Met variant in MYPN has not been previously reported in individuals with cardiomyopathy, but has been identified in 2/11564 of Latino chromosomes b y the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs750655311). Computational prediction tools and conservation analysis do not pr ovide strong support for or against an impact to the protein. In summary, the cl inical significance of the p.Val1255Met variant is uncertain.
Invitae RCV000463619 SCV000553461 uncertain significance Dilated cardiomyopathy 1KK 2019-11-13 criteria provided, single submitter clinical testing This sequence change replaces valine with methionine at codon 1255 of the MYPN protein (p.Val1255Met). The valine residue is moderately conserved and there is a small physicochemical difference between valine and methionine. This variant is present in population databases (rs750655311, ExAC 0.02%) but has not been reported in the literature in individuals with a MYPN-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, this variant is a rare missense change with uncertain impact on protein function. There is no indication that it causes disease, but the available evidence is currently insufficient to prove that conclusively. Therefore, it has been classified as a Variant of Uncertain Significance.
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease,Montreal Heart Institute RCV001256744 SCV001433151 uncertain significance Dilated cardiomyopathy 1A 2019-03-15 criteria provided, single submitter clinical testing

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