ClinVar Miner

Submissions for variant NM_001035.3(RYR2):c.13516G>C (p.Ala4506Pro) (rs794728829)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000182892 SCV000235281 uncertain significance not provided 2017-05-30 criteria provided, single submitter clinical testing The Ala4506Pro variant in the RYR2 gene has not been previously reported as a pathogenic variant or as a benign polymorphism, to our knowledge. Ala4506Pro results in a semi-conservative amino acid substitution change, resulting in the gain of a sterically constrained Proline at a position that is conserved throughout evolution. In addition, Ala4506Pro is located in a hot spot within the channel region of the RYR2 gene (Medeiros-Domingo A et al., 2009). Variants in nearby codons (Met4504Ile, Ala4510Thr) have been reported in association with polymorphic ventricular tachycardia, further supporting the functional importance of this region of the protein. Furthermore, in silico analysis predicts this variant to be damaging to the protein structure/function (Adzhubei IA et al., 2010; Schwarz JM et al., 2011). The Ala4506Pro variant was not observed in 538 control alleles from mixed ethnic backgrounds tested at GeneDx, indicating it is not a common benign variant. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant.

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