ClinVar Miner

Submissions for variant NM_000059.3(BRCA2):c.2187A>G (p.Ile729Met) (rs397507620)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000326298 SCV000329133 uncertain significance not provided 2016-09-28 criteria provided, single submitter clinical testing This variant is denoted BRCA2 c.2187A>G at the cDNA level, p.Ile729Met (I729M) at the protein level, and results in the change of an Isoleucine to a Methionine (ATA>ATG). Using alternate nomenclature, this variant has been previously published as BRCA2 2415A>G. This variant was observed in a woman with breast cancer without a family history of breast or ovarian cancer (Plaschke 2000). BRCA2 Ile729Met 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 Isoleucine and Methionine share similar properties, this is considered a conservative amino acid substitution. BRCA2 Ile729Met occurs at a position that is not conserved and is not located in a known functional domain (UniProt). In silico analyses are inconsistent regarding the effect this variant may have on protein structure and function. Based on currently available evidence, it is unclear whether BRCA2 Ile729Met is a pathogenic or benign variant. We consider it to be a variant of uncertain significance.

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