ClinVar Miner

Submissions for variant NM_000256.3(MYBPC3):c.3274G>A (p.Val1092Ile)

dbSNP: rs778853122
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001058600 SCV001223184 uncertain significance Hypertrophic cardiomyopathy 2019-02-19 criteria provided, single submitter clinical testing This sequence change replaces valine with isoleucine at codon 1092 of the MYBPC3 protein (p.Val1092Ile). The valine residue is weakly conserved and there is a small physicochemical difference between valine and isoleucine. This variant is present in population databases (rs778853122, ExAC 0.04%). This variant has not been reported in the literature in individuals with MYBPC3-related conditions. 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, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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.
Color Diagnostics, LLC DBA Color Health RCV001182394 SCV001347829 uncertain significance Cardiomyopathy 2022-12-06 criteria provided, single submitter clinical testing This missense variant replaces valine with isoleucine at codon 1092 of the MYBPC3 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with hypertrophic cardiomyopathy (PMID: 32841044). This variant has been identified in 9/202588 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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