ClinVar Miner

Submissions for variant NM_000179.2(MSH6):c.3436C>T (p.Gln1146Ter) (rs63750356)

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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
International Society for Gastrointestinal Hereditary Tumours (InSiGHT) RCV000074849 SCV000108061 pathogenic Lynch syndrome 2013-09-05 reviewed by expert panel research Coding sequence variation resulting in a stop codon
Ambry Genetics RCV000561009 SCV000673950 pathogenic Hereditary cancer-predisposing syndrome 2018-05-24 criteria provided, single submitter clinical testing Alterations resulting in premature truncation (e.g.reading frame shift, nonsense)
Invitae RCV000629768 SCV000750724 pathogenic Hereditary nonpolyposis colon cancer 2017-12-05 criteria provided, single submitter clinical testing This sequence change creates a premature translational stop signal (p.Gln1146*) in the MSH6 gene. It is expected to result in an absent or disrupted protein product. This variant is not present in population databases (ExAC no frequency). This variant has been reported in an individual with suspected Lynch syndrome (PMID: 17199584). ClinVar contains an entry for this variant (Variation ID: 89382). Loss-of-function variants in MSH6 are known to be pathogenic (PMID: 18269114, 24362816). For these reasons, this variant has been classified as Pathogenic.
GeneDx RCV000657654 SCV000779402 pathogenic not provided 2017-06-14 criteria provided, single submitter clinical testing This variant is denoted MSH6 c.3436C>T at the cDNA level and p.Gln1146Ter (Q1146X) at the protein level. The substitution creates a nonsense variant, which changes a Glutamine to a premature stop codon (CAG>TAG), and is predicted to cause loss of normal protein function through either protein truncation or nonsense-mediated mRNA decay. This variant has been reported in at least two individuals with colorectal cancer, one of whom also had a sebaceous neoplasm, and is considered pathogenic (Mangold 2007, Steinke 2008).

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