rs747771350
Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7
The NM_000179.3(MSH6):c.3426G>A(p.Thr1142=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,614,048 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T1142T) has been classified as Likely benign.
Frequency
Consequence
NM_000179.3 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -11 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MSH6 | NM_000179.3 | c.3426G>A | p.Thr1142= | synonymous_variant | 5/10 | ENST00000234420.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MSH6 | ENST00000234420.11 | c.3426G>A | p.Thr1142= | synonymous_variant | 5/10 | 1 | NM_000179.3 | P4 |
Frequencies
GnomAD3 genomes ? AF: 0.0000263 AC: 4AN: 152162Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251326Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135842
GnomAD4 exome AF: 0.0000150 AC: 22AN: 1461886Hom.: 0 Cov.: 33 AF XY: 0.0000151 AC XY: 11AN XY: 727244
GnomAD4 genome ? AF: 0.0000263 AC: 4AN: 152162Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74344
ClinVar
Submissions by phenotype
Lynch syndrome 5 Benign:3
Benign, criteria provided, single submitter | clinical testing | Myriad Genetics, Inc. | Mar 27, 2023 | This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. - |
Likely benign, criteria provided, single submitter | clinical testing | Counsyl | Jul 14, 2016 | - - |
Likely benign, criteria provided, single submitter | clinical testing | KCCC/NGS Laboratory, Kuwait Cancer Control Center | Jul 07, 2023 | - - |
Lynch syndrome Benign:3
Likely benign, no assertion criteria provided | clinical testing | Department of Pathology and Laboratory Medicine, Sinai Health System | - | MSH6, EXON5, c.3426G>A, p.Thr1142=, Heterozygous, Likely BenignrnThe MSH6 p.Thr1142= variant was not identified in the literature nor was it identified in the UMD-LSDB database. The variant was identified in dbSNP (ID: rs747771350) as “With Uncertain significance allele” and ClinVar (classified as likely benign by Invitae, Ambry Genetics and 3 other submitters; and as uncertain significance by Integrated Genetics/Laboratory Corporation of America). The variant was identified in control databases in 5 of 277126 chromosomes at a frequency of 0.00002 (Genome Aggregation Database Feb 27, 2017). It was observed in the following populations: Other in 2 of 6464 chromosomes (freq: 0.0003), European Non-Finnish in 1 of 126640 chromosomes (freq: 0.000008), East Asian in 1 of 18870 chromosomes (freq: 0.00005), and South Asian in 1 of 30778 chromosomes (freq: 0.00003); it was not observed in the African, Latino, Ashkenazi Jewish, or European Finnish populations. The variant was identified by our laboratory in a patient with pancreatic cancer, as co-occurring with a pathogenic MSH6 variant (c.3940C>T, p.Gln1314*), increasing the likelihood the variant does not have clinical significance. The p.Thr1142= 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) 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.rnAssessment Date: 2019/07/15 - |
Likely benign, criteria provided, single submitter | clinical testing | University of Washington Department of Laboratory Medicine, University of Washington | May 01, 2018 | MSH6 NM_000179.2:c.3426G>A has a 0.9% probability of pathogenicity based on combining prior probability from public data with a likelihood ratio of 0.16 to 1, generated from evidence of seeing this as a somatic mutation in a tumor with loss of heterozygosity at the MSH6 locus. See Shirts et al 2018, PMID 29887214. - |
Likely benign, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Dec 01, 2023 | - - |
Hereditary cancer-predisposing syndrome Benign:3
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Nov 28, 2014 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, 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. - |
Likely benign, criteria provided, single submitter | curation | Sema4, Sema4 | Sep 10, 2020 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Apr 13, 2015 | - - |
not specified Benign:2
Likely benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Aug 29, 2019 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Apr 26, 2021 | - - |
MSH6-related disorder Benign:1
Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | May 02, 2022 | This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
not provided Benign:1
Benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 03, 2015 | - - |
Hereditary nonpolyposis colorectal neoplasms Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Jan 21, 2024 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at