Total submissions: 3
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV001015296 | SCV001176116 | uncertain significance | Hereditary cancer-predisposing syndrome | 2024-10-08 | criteria provided, single submitter | clinical testing | The p.M789V variant (also known as c.2365A>G), located in coding exon 14 of the PMS2 gene, results from an A to G substitution at nucleotide position 2365. The methionine at codon 789 is replaced by valine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. |
| Labcorp Genetics |
RCV001313049 | SCV001503525 | uncertain significance | Hereditary nonpolyposis colorectal neoplasms | 2023-02-08 | criteria provided, single submitter | clinical testing | This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 789 of the PMS2 protein (p.Met789Val). 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 expected to disrupt PMS2 protein function. ClinVar contains an entry for this variant (Variation ID: 821157). This variant has not been reported in the literature in individuals affected with PMS2-related conditions. The frequency data for this variant in the population databases (gnomAD) is considered unreliable due to the presence of homologous sequence, such as pseudogenes or paralogs, in the genome. |
| Baylor Genetics | RCV003461348 | SCV004207910 | uncertain significance | Lynch syndrome 4 | 2022-02-04 | criteria provided, single submitter | clinical testing |