ClinVar Miner

Submissions for variant NM_172056.2(KCNH2):c.2551A>G (p.Ser851Gly) (rs794728345)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000181732 SCV000234035 uncertain significance not provided 2016-12-19 criteria provided, single submitter clinical testing A variant of uncertain significance has been identified in an alternate transcript of the KCNH2 gene. The S851G variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. This variant was not observed in approximately 3,400 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 S851G 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. However, this substitution occurs at a position that is not conserved across species, and Glycine is the wild-type amino acid at this location in at least two species. Additionally, 2/3 in silico algorithms predict this variant likely does not alter the protein structure/function. Finally, no missense variants in this transcript have been reported in the Human Gene Mutation Database (Stenson et al., 2014).Therefore, based on the currently available information, it is unclear whether this variant is pathogenic or benign.

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