ClinVar Miner

Submissions for variant NM_004006.2(DMD):c.9958C>A (p.Pro3320Thr) (rs1131691677)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000493318 SCV000582613 likely pathogenic not provided 2015-11-19 criteria provided, single submitter clinical testing The P3320T variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. However, P3320S and P3320R have been reported previously in association with dystrophiopathies (Flanigan et al., 2009; Juan-Mateu et al., 2013). The P3320T 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. P3320T 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 conserved, and in silico analysis predicts this variant is probably damaging to the protein structure/function. Additionally, several missense variants in nearby residues have been reported in the Human Gene Mutation Database in association with dystrophinopathies (Stenson et al., 2014), supporting the functional importance of this region of the protein. Therefore, this variant is a strong candidate for a pathogenic variant, however the possibility that it is a benign variant cannot be excluded.

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