Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV001019942 | SCV001181361 | uncertain significance | Hereditary cancer-predisposing syndrome | 2018-06-15 | criteria provided, single submitter | clinical testing | The p.D332N variant (also known as c.994G>A), located in coding exon 8 of the POLD1 gene, results from a G to A substitution at nucleotide position 994. The aspartic acid at codon 332 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is highly 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. |
| Invitae | RCV001327316 | SCV001518384 | uncertain significance | Colorectal cancer, susceptibility to, 10 | 2020-08-11 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with POLD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 823580). This variant is not present in population databases (ExAC no frequency). This sequence change replaces aspartic acid with asparagine at codon 332 of the POLD1 protein (p.Asp332Asn). The aspartic acid residue is highly conserved and there is a small physicochemical difference between aspartic acid and asparagine. |