ClinVar Miner

Submissions for variant NM_000256.3(MYBPC3):c.1864G>A (p.Ala622Thr)

dbSNP: rs1489679460
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000628949 SCV000749857 uncertain significance Hypertrophic cardiomyopathy 2023-12-09 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 622 of the MYBPC3 protein (p.Ala622Thr). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MYBPC3-related conditions. ClinVar contains an entry for this variant (Variation ID: 524998). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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.
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario RCV003486901 SCV004239347 uncertain significance Cardiomyopathy 2022-11-30 criteria provided, single submitter clinical testing
Color Diagnostics, LLC DBA Color Health RCV003486901 SCV004358708 uncertain significance Cardiomyopathy 2023-05-03 criteria provided, single submitter clinical testing This missense variant replaces alanine with threonine at codon 622 of the MYBPC3 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with MYBPC3-related disorders in the literature. This variant has not been identified 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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