ClinVar Miner

Submissions for variant NM_000179.3(MSH6):c.1901_1902del (p.Thr633_Leu634insTer)

dbSNP: rs267608082
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Total submissions: 8
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
International Society for Gastrointestinal Hereditary Tumours (InSiGHT) RCV000074696 SCV000107901 pathogenic Lynch syndrome 2013-09-05 reviewed by expert panel research Coding sequence variation resulting in a stop codon
Invitae RCV000524125 SCV000551072 pathogenic Hereditary nonpolyposis colorectal neoplasms 2023-11-28 criteria provided, single submitter clinical testing This sequence change creates a premature translational stop signal (p.Leu634*) in the MSH6 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in MSH6 are known to be pathogenic (PMID: 18269114, 24362816). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with endometrial cancer and other Lynch syndrome-associated cancers (PMID: 12732731, 15098177). ClinVar contains an entry for this variant (Variation ID: 89232). For these reasons, this variant has been classified as Pathogenic.
Ambry Genetics RCV001013617 SCV001174225 pathogenic Hereditary cancer-predisposing syndrome 2024-02-01 criteria provided, single submitter clinical testing The c.1901_1902delTG pathogenic mutation, located in coding exon 4 of the MSH6 gene, results from a deletion of two nucleotides at nucleotide positions 1901 to 1902, causing a translational frameshift with a predicted alternate stop codon (p.L634*). This mutation has been reported in a proband with MSI-high endometrial cancer diagnosed at age 58 (Goodfellow PJ et al. Proc. Natl. Acad. Sci. U.S.A., 2003 May;100:5908-13). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation.
Quest Diagnostics Nichols Institute San Juan Capistrano RCV001284179 SCV001469820 pathogenic not provided 2020-01-03 criteria provided, single submitter clinical testing The variant creates a premature stop codon, and is therefore predicted to result in the loss of a functional protein. Found in at least one patient with expected phenotype for this gene, and not found in general population data. Segregation with disease in affected individuals from a single family.
GeneDx RCV001284179 SCV001778281 pathogenic not provided 2020-11-10 criteria provided, single submitter clinical testing Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Not observed in large population cohorts (Lek et al., 2016); Truncating variants in this gene are considered pathogenic by a well-established clinical consortium and/or database; Observed in patients with Lynch-related cancers (Goodfellow 2003); This variant is associated with the following publications: (PMID: 12732731)
Myriad Genetics, Inc. RCV003450935 SCV004185580 pathogenic Lynch syndrome 5 2023-08-16 criteria provided, single submitter clinical testing This variant is considered pathogenic. This variant creates a termination codon and is predicted to result in premature protein truncation.
Baylor Genetics RCV003466937 SCV004195830 likely pathogenic Endometrial carcinoma 2023-02-22 criteria provided, single submitter clinical testing
Department of Pathology and Laboratory Medicine, Sinai Health System RCV001284179 SCV001549372 uncertain significance not provided no assertion criteria provided clinical testing

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