ClinVar Miner

Submissions for variant NM_000535.7(PMS2):c.1433G>A (p.Ser478Asn)

gnomAD frequency: 0.00001  dbSNP: rs748643694
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001186638 SCV001353131 uncertain significance Hereditary cancer-predisposing syndrome 2023-08-17 criteria provided, single submitter clinical testing This missense variant replaces serine with asparagine at codon 478 of the PMS2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with PMS2-related disorders in the literature. This variant has been identified in 2/251490 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Ambry Genetics RCV001186638 SCV002702820 uncertain significance Hereditary cancer-predisposing syndrome 2018-10-30 criteria provided, single submitter clinical testing The p.S478N variant (also known as c.1433G>A), located in coding exon 11 of the PMS2 gene, results from a G to A substitution at nucleotide position 1433. The serine at codon 478 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.

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