ClinVar Miner

Submissions for variant NM_000059.3(BRCA2):c.8393C>G (p.Pro2798Arg) (rs276174906)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000218832 SCV000279407 uncertain significance not provided 2016-02-24 criteria provided, single submitter clinical testing This variant is denoted BRCA2 c.8393C>G at the cDNA level, p.Pro2798Arg (P2798R) at the protein level, and results in the change of a Proline to an Arginine (CCT>CGT). Using alternate nomenclature, this variant would be defined as BRCA2 8621C>G. This variant has not, to our knowledge, been published in the literature as pathogenic or benign. BRCA2 Pro2798Arg was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, suggesting it is not a common benign variant in these populations. Since Proline and Arginine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. BRCA2 Pro2798Arg occurs at a position that is conserved across species and is located in the DSS1 contacting residue and SHFM1 binding domain (Marston 1999, Yang 2002). In silico analyses predict that this variant is probably damaging to protein structure and function. Based on currently available evidence, it is unclear whether BRCA2 Pro2798Arg is a pathogenic or benign variant. We consider it to be a variant of uncertain significance.

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