Submissions for variant NM_000179.3(MSH6):c.210G>T (p.Lys70Asn)

Total submissions: 2

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Ambry Genetics	RCV002417457	SCV002725957	uncertain significance	Hereditary cancer-predisposing syndrome	2021-04-26	criteria provided, single submitter	clinical testing	The p.K70N variant (also known as c.210G>T), located in coding exon 1 of the MSH6 gene, results from a G to T substitution at nucleotide position 210. The lysine at codon 70 is replaced by asparagine, an amino acid with 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.
All of Us Research Program, National Institutes of Health	RCV004007398	SCV004835657	uncertain significance	Lynch syndrome	2023-11-20	criteria provided, single submitter	clinical testing	This missense variant replaces lysine with asparagine at codon 70 of the MSH6 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 MSH6-related disorders in the literature. This variant has not been identified 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.