ClinVar Miner

Submissions for variant NM_000059.4(BRCA2):c.4405G>A (p.Asp1469Asn)

dbSNP: rs1555283770
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000569976 SCV000668757 uncertain significance Hereditary cancer-predisposing syndrome 2017-02-07 criteria provided, single submitter clinical testing The p.D1469N variant (also known as c.4405G>A), located in coding exon 10 of the BRCA2 gene, results from a G to A substitution at nucleotide position 4405. The aspartic acid at codon 1469 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Labcorp Genetics (formerly Invitae), Labcorp RCV001867882 SCV002253529 uncertain significance Hereditary breast ovarian cancer syndrome 2021-08-31 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid with asparagine at codon 1469 of the BRCA2 protein (p.Asp1469Asn). The aspartic acid residue is weakly conserved and there is a small physicochemical difference between aspartic acid and asparagine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with BRCA2-related conditions. ClinVar contains an entry for this variant (Variation ID: 483077). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt BRCA2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
University of Washington Department of Laboratory Medicine, University of Washington RCV000569976 SCV003850484 likely benign Hereditary cancer-predisposing syndrome 2023-03-23 criteria provided, single submitter curation Missense variant in a coldspot region where missense variants are very unlikely to be pathogenic (PMID:31911673).

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