ClinVar Miner

Submissions for variant NM_000059.3(BRCA2):c.83G>A (p.Ser28Asn) (rs1064793060)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000571400 SCV000661419 uncertain significance Hereditary cancer-predisposing syndrome 2017-03-29 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Insufficient evidence
GeneDx RCV000478054 SCV000564757 uncertain significance not provided 2015-02-05 criteria provided, single submitter clinical testing This variant is denoted BRCA2 c.83G>A at the cDNA level, p.Ser28Asn (S28N) at the protein level, and results in the change of a Serine to an Asparagine (AGT>AAT). Using alternate nomenclature, this variant would be defined as BRCA2 311G>A. This variant has not, to our knowledge, been published in the literature as pathogenic or benign. BRCA2 Ser28Asn 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. Since Serine and Asparagine share similar properties, this is considered a conservative amino acid substitution. BRCA2 Ser28Asn occurs at a position that is fully conserved across species and is located within the region that interacts with PALB2 (Roy 2012). In silico analyses predict that this variant is probably damaging to protein structure and function. Based on currently available information, it is unclear whether BRCA2 Ser28Asn is pathogenic or benign. We consider it to be a variant of uncertain significance.

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