ClinVar Miner

Submissions for variant NM_000256.3(MYBPC3):c.1652T>A (p.Ile551Asn)

gnomAD frequency: 0.00001  dbSNP: rs1047978195
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001178240 SCV001342630 uncertain significance Cardiomyopathy 2023-12-05 criteria provided, single submitter clinical testing This missense variant replaces isoleucine with asparagine at codon 551 of the MYBPC3 protein. Computational prediction tools and conservation analyses suggest that this variant may have deleterious impact on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant nor has this variant been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/31394 chromosomes in the general population by the Genome Aggregation Database (gnomAD). 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.
Invitae RCV001875884 SCV002241746 uncertain significance Hypertrophic cardiomyopathy 2021-07-21 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 (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 919830). This variant has not been reported in the literature in individuals affected with MYBPC3-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces isoleucine with asparagine at codon 551 of the MYBPC3 protein (p.Ile551Asn). The isoleucine residue is highly conserved and there is a large physicochemical difference between isoleucine and asparagine.

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