Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV000216286 | SCV000273673 | uncertain significance | Hereditary cancer-predisposing syndrome | 2015-01-28 | criteria provided, single submitter | clinical testing | The p.S3070C variant (also known as c.9209C>G or 9437C>G), located in coding exon 23 of the BRCA2 gene, results from a C to G substitution at nucleotide position 9209. The serine at codon 3070 is replaced by cysteine, an amino acid with dissimilar properties. This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. In the ESP, this variant was not observed in 6503 samples (13006 alleles) with coverage at this position. To date, this alteration has been detected with an allele frequency of approximately 0.001% (greater than 105,000 alleles tested) in our clinical cohort. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be benign by PolyPhen but deleterious by SIFT in silico analyses, respectively. Since supporting evidence is limited at this time, the clinical significance of p.S3070C remains unclear. |
| Labcorp Genetics |
RCV003644933 | SCV004429241 | uncertain significance | Hereditary breast ovarian cancer syndrome | 2023-04-22 | 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. ClinVar contains an entry for this variant (Variation ID: 230213). This variant has not been reported in the literature in individuals affected with BRCA2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 3070 of the BRCA2 protein (p.Ser3070Cys). |