ClinVar Miner

Submissions for variant NM_000179.3(MSH6):c.354A>G (p.Thr118=)

gnomAD frequency: 0.00002  dbSNP: rs558590898
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Total submissions: 9
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001089387 SCV000253109 likely benign Hereditary nonpolyposis colorectal neoplasms 2023-11-30 criteria provided, single submitter clinical testing
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine RCV000455691 SCV000539700 likely benign not specified 2016-10-26 criteria provided, single submitter clinical testing Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Silent variant. MaxMAF = 0.012% in ExAC. Classified in ClinVar as Likely Benign by Invitae (1 star).
Ambry Genetics RCV000575136 SCV000662436 likely benign Hereditary cancer-predisposing syndrome 2016-06-29 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Color Diagnostics, LLC DBA Color Health RCV000575136 SCV000690364 likely benign Hereditary cancer-predisposing syndrome 2016-04-28 criteria provided, single submitter clinical testing
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories RCV000756350 SCV000884136 likely benign not provided 2017-06-23 criteria provided, single submitter clinical testing
Quest Diagnostics Nichols Institute San Juan Capistrano RCV000756350 SCV000888278 likely benign not provided 2018-04-13 criteria provided, single submitter clinical testing
GeneDx RCV000756350 SCV001943381 likely benign not provided 2018-07-09 criteria provided, single submitter clinical testing
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario RCV001798667 SCV002042053 likely benign Breast and/or ovarian cancer 2020-01-03 criteria provided, single submitter clinical testing
Department of Pathology and Laboratory Medicine, Sinai Health System RCV001355723 SCV001550681 likely benign Carcinoma of colon no assertion criteria provided clinical testing The MSH6 p.Thr118= variant was not identified in the literature nor was it identified in the COGR, Cosmic, MutDB, UMD-LSDB, Insight Colon Cancer Gene Variant Database, Zhejiang Colon Cancer Database, Mismatch Repair Genes Variant Database, or Insight Hereditary Tumors databases. The variant was identified in dbSNP (ID: rs558590898) as “With Likely benign allele”, ClinVar (as likely benign by Invitae, Partners HealthCare Personalized Medicine, Ambry Genetics, and Color), and Clinvitae (3x). The variant was identified in control databases in 4 of 246272 chromosomes at a frequency of 0.00002 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 1 of 15304 chromosomes (freq: 0.00007), European (Non-Finnish) in 2 of 111720 chromosomes (freq: 0.00002), and East Asian in 1 of 17248 chromosomes (freq: 0.000058); it was not observed in the Other, Latino, Ashkenazi Jewish, Finnish, and South Asian populations. The p.Thr118= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign.

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