ClinVar Miner

Submissions for variant NM_005159.5(ACTC1):c.700T>C (p.Ser234Pro)

dbSNP: rs730880397
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000157787 SCV000207717 uncertain significance not provided 2014-03-15 criteria provided, single submitter clinical testing p.Ser234Pro (TCT>CCT): c.700 T>C in exon 5 of the ACTC1 gene (NM_005159.4). A variant of unknown significance has been identified in the ACTC1 gene. To our knowledge, the S234P variant has not been published as a mutation or as a benign polymorphism. The S234P variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The S234P variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. This substitution occurs at a position that is well conserved across species. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. A missense mutation in a nearby residue (A232V) has been reported in association with hypertrophic cardiomyopathy supporting the functional importance of this region of the protein.Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic mutation or a rare benign variant. The variant is found in HCM panel(s).

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