ClinVar Miner

Submissions for variant NM_000257.4(MYH7):c.789A>G (p.Ile263Met) (rs730880855)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Blueprint Genetics RCV000208372 SCV000264076 likely pathogenic Primary familial hypertrophic cardiomyopathy 2015-11-06 criteria provided, single submitter clinical testing
Stanford Center for Inherited Cardiovascular Disease, Stanford University RCV000223688 SCV000280381 uncertain significance not specified 2015-08-26 no assertion criteria provided clinical testing Note this variant was found in clinical genetic testing performed by one or more labs who may also submit to ClinVar. Thus any internal case data may overlap with the internal case data of other labs. The interpretation reviewed below is that of the Stanford Center for Inherited Cardiovascular Disease. MYH7 p.Ile263Met (c.789A>G) The variant has been seen in at least one case. This variant was reported for by van Driest et al (2004) in a patient from their American HCM cohort. We could find no other reports. There is no segregation or functional data available on the variant. In silico analysis with PolyPhen-2 predicts the variant to be probably damaging. The isoleucine at codon 263 is conserved across species, as are neighboring amino acids. Other variants have been reported in association with disease at this codon (p.Ile263Thr, which we consider likely disease causing) and a nearby codon (p.Gly256Glu). In total the variant has not been seen in ~5600 published controls and publicly available population datsets. There is no variation at codon 263 listed in the NHLBI Exome Sequencing Project dataset, which currently includes variant calls on ~5500 Caucasian and African American individuals (as of 1/16/2012). There is also no variation at this codon listed in dbSNP or 1000 genomes (as of 1/16/2012). The variant was not observed in the following published control samples: 200 (van Driest et al 2004).

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