ClinVar Miner

Submissions for variant NM_000179.3(MSH6):c.4067_4068del (p.Leu1356fs)

dbSNP: rs2104584777
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
All of Us Research Program, National Institutes of Health RCV004806834 SCV005429784 uncertain significance Lynch syndrome 2024-07-29 criteria provided, single submitter clinical testing This variant deletes 2 nucleotides in exon 10 of the MSH6 gene, creating a frameshift and a premature translation stop signal in the last coding exon. This mutant transcript is predicted to escape nonsense-mediated decay and be expressed as a truncated protein impacting the last 5 amino acids. To our knowledge, 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). While loss of MSH6 function is a known mechanism of disease (clinicalgenome.org), this truncating variant occurs in the last exon of the MSH6 gene with unknown functional consequence. The available evidence is insufficient to determine the role of this C-terminal truncation variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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