Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Labcorp Genetics |
RCV001317159 | SCV001507808 | uncertain significance | Hereditary breast ovarian cancer syndrome | 2020-08-20 | criteria provided, single submitter | clinical testing | 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. 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. This variant has not been reported in the literature in individuals with BRCA2-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces serine with asparagine at codon 2976 of the BRCA2 protein (p.Ser2976Asn). The serine residue is weakly conserved and there is a small physicochemical difference between serine and asparagine. |
| Ambry Genetics | RCV002375405 | SCV002687359 | uncertain significance | Hereditary cancer-predisposing syndrome | 2022-10-13 | criteria provided, single submitter | clinical testing | The p.S2976N variant (also known as c.8927G>A), located in coding exon 21 of the BRCA2 gene, results from a G to A substitution at nucleotide position 8927. The serine at codon 2976 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is not well 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. |