2-47476399-C-T

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000251.3(MSH2):​c.2038C>T​(p.Arg680Ter) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000137 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MSH2
NM_000251.3 stop_gained

Scores

5
1
1

Clinical Significance

Pathogenic reviewed by expert panel P:20U:1

Conservation

PhyloP100: 5.72
Variant links:
Genes affected
MSH2 (HGNC:7325): (mutS homolog 2) This locus is frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). When cloned, it was discovered to be a human homolog of the E. coli mismatch repair gene mutS, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in HNPCC. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 2-47476399-C-T is Pathogenic according to our data. Variant chr2-47476399-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 36572.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr2-47476399-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MSH2NM_000251.3 linkuse as main transcriptc.2038C>T p.Arg680Ter stop_gained 13/16 ENST00000233146.7 NP_000242.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MSH2ENST00000233146.7 linkuse as main transcriptc.2038C>T p.Arg680Ter stop_gained 13/161 NM_000251.3 ENSP00000233146 P1P43246-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251446
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:20Uncertain:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Pathogenic:7Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-- -
Pathogenic, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoApr 03, 2020This nonsense variant causes the premature termination of MSH2 protein synthesis. The frequency of this variant in the general population, 0.0000088 (1/113738 chromosomes, http://gnomad.broadinstitute.org), is consistent with pathogenicity. In the published literature, the variant has been reported in individuals with Lynch syndrome (PMIDs: 20215533 (2010), 21598002 (2011), 23047549 (2012)). Based on the available information, this variant is classified as pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesSep 08, 2017The MSH2 c.2038C>T, p.Arg680Ter variant (rs63749932) is a recurrent alteration in families with Lynch syndrome (Brieger 2011, Wijnen 1997, InSiGHT LOVD database). It is listed as pathogenic in ClinVar (Variation ID: 36572) by the International Society for Gastrointestinal Hereditary Tumours (Thompson 2014), and observed once in the Genome Aggregation Database general population database (1/246216 alleles). The variant introduces a premature termination codon, and predicted to result in a truncated protein or an absent transcript. Based on the above information, the variant is classified as pathogenic. References InSiGHT LOVD database: http://chromium.lovd.nl/LOVD2/colon_cancer/variants.php?action=search_unique Brieger A et al. Malignant fibrous histiocytoma is a rare Lynch syndrome-associated tumor in two German families. Fam Cancer. 2011; 10(3):591-5. Thompson B et al. Application of a 5-tiered scheme for standardized classification of 2,360 unique mismatch repair gene variants in the InSiGHT locus-specific database. Nat Genet. 2014; 46(2):107-15. Wijnen J et al. Hereditary nonpolyposis colorectal cancer families not complying with the Amsterdam criteria show extremely low frequency of mismatch-repair-gene mutations. Am J Hum Genet. 1997; 61(2):329-35. -
Pathogenic, no assertion criteria providedclinical testingMayo Clinic Laboratories, Mayo Clinic-- -
Pathogenic, criteria provided, single submitterclinical testingClinical Genetics and Genomics, Karolinska University HospitalMar 30, 2017- -
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenDec 01, 2023MSH2: PVS1, PM2, PS4:Moderate, PP4, PS3:Supporting -
Pathogenic, criteria provided, single submitterclinical testingRevvity Omics, RevvityFeb 22, 2022- -
Pathogenic, criteria provided, single submitterclinical testingGeneDxJun 01, 2023Nonsense 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 at significant frequency in large population cohorts (gnomAD); Truncating variants in this gene are considered pathogenic by a well-established clinical consortium and/or database; This variant is associated with the following publications: (PMID: 20215533, 12547705, 15713769, 25648859, 20587412, 24344984, 32549215, 31830689, 29922827, 28888541, 34761457, 31615790, 9311737, 21598002, 23047549, 12414824, 16807412, 18809606, 9718327, 11524701, 11854906, 11208710, 27318266, 18270343, 27013479, 16616355, 15345113, 15849733, 20233461, 19723918, 17312306, 15926618, 12658575, 12112654, 18566915, 27601186, 25980754, 25430799, 26681312, 28176205, 28944238, 29489754, 28874130, 30521064, 30322717, 31939059, 29625052, 31447099, 34178123, 30217226, 32719484, 30787465, 30998989) -
Lynch syndrome 1 Pathogenic:4
Pathogenic, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 31, 2024This sequence change creates a premature translational stop signal (p.Arg680*) in the MSH2 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in MSH2 are known to be pathogenic (PMID: 15849733, 24362816). This variant is present in population databases (rs63749932, gnomAD 0.0009%). This premature translational stop signal has been observed in individual(s) with Lynch syndrome (PMID: 20215533, 12547705, 15713769, 25648859, 20587412, 24344984, 32549215, 31830689, 29922827, 28888541, 34761457, 31615790, 9311737, 21598002, 23047549, 12414824, 16807412, 18809606, 9718327, 11524701, 11854906, 11208710, 27318266, 18270343, 27013479, 16616355, 15345113, 15849733, 20233461, 19723918, 17312306, 15926618, 12658575, 12112654, 18566915, 27601186, 25980754, 25430799, 26681312, 28176205, 28944238, 29489754, 28874130, 30521064, 30322717, 31939059, 29625052, 31447099, 34178123, 30217226, 32719484, 30787465, 30998989) . ClinVar contains an entry for this variant (Variation ID: 36572). 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. For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 21, 2024- -
Pathogenic, criteria provided, single submitterclinical testingCounsylMay 02, 2017- -
Pathogenic, criteria provided, single submitterclinical testingMyriad Genetics, Inc.Mar 24, 2023This variant is considered pathogenic. This variant creates a termination codon and is predicted to result in premature protein truncation. -
Lynch syndrome Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testing;curationWomen's Health and Genetics/Laboratory Corporation of America, LabCorpAug 18, 2011- -
Pathogenic, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMar 20, 2017The p.Arg680X variant in MSH2 has been reported in at least 5 individuals with L ynch syndrome-associated cancers (Hendriks 2003, Walsh 2010, Sjursen 2010, Pal 2 012, Dominguez-Valentin 2016). In addition, tumors sampled from 3 individuals sh owed microsatellite instability and lacked MSH2 and MSH6 expression. This varian t has also been identified in 1/66702 of European chromosomes by the Exome Aggre gation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs63749932). This nonsense variant leads to a premature termination codon at position 680, which is predicted to lead to a truncated or absent protein. Heterozygous loss of func tion of the MSH2 gene is an established disease mechanism in individuals with Ly nch Syndrome. Furthermore, the p.Arg680X variant has been classified as pathogen ic on by the ClinGen-approved InSiGHT expert panel (ClinVar SCV000107394.2). In summary, this variant meets criteria to be classified as pathogenic for Lynch S yndrome in an autosomal dominant manner based upon the predicted impact to the p rotein. -
Pathogenic, reviewed by expert panelresearchInternational Society for Gastrointestinal Hereditary Tumours (InSiGHT)Sep 05, 2013Coding sequence variation introducing premature termination codon -
Hereditary cancer-predisposing syndrome Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthOct 11, 2023This variant changes 1 nucleotide in exon 13 of the MSH2 gene, creating a premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals and families affected with Lynch syndrome and/or Lynch syndrome-associated disease (PMID: 12547705, 20587412, 21879275, 23047549, 24344984, 25430799, 27013479, 27601186), as well as in individuals affected with breast cancer or prostate cancer whose tumors displayed abnormal MSH2/MSH6 protein via immunohistochemistry (PMID: 19723918, 20215533). This variant has been identified in 1/251446 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of MSH2 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingAmbry GeneticsMar 09, 2022The p.R680* pathogenic mutation (also known as c.2038C>T), located in coding exon 13 of the MSH2 gene, results from a C to T substitution at nucleotide position 2038. This changes the amino acid from an arginine to a stop codon within coding exon 13. This mutation has been identified in multiple individuals/families with HNPCC/Lynch syndrome (Jenkins MA et al. Clin. Gastroenterol. Hepatol. 2006 Apr;4:489-98; Levi Z et al. Am. J. Transplant. 2007 Feb;7:476-9; Brieger A et al. Fam. Cancer. 2011 Sep;10:591-5; Pal T et al. Br. J. Cancer. 2012 Nov;107:1783-90; Goldberg Y et al. Clin. Genet. 2015 Jun;87:549-53; Susswein LR et al. Genet. Med. 2016 Aug;18:823-32; DeRycke MS et al. Mol. Genet. Genomic Med. 2017 Jul;5:553-569; Rossi BM et al. BMC Cancer. 2017 Sep;17:623). 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. -
Lynch-like syndrome Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingConstitutional Genetics Lab, Leon Berard Cancer CenterJul 01, 2019- -
Malignant tumor of ascending colon Pathogenic:1
Pathogenic, no assertion criteria providedclinical testing3DMed Clinical Laboratory IncJan 04, 2018- -
Hereditary nonpolyposis colorectal neoplasms Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024This sequence change creates a premature translational stop signal (p.Arg680*) in the MSH2 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in MSH2 are known to be pathogenic (PMID: 15849733, 24362816). This variant is present in population databases (rs63749932, gnomAD 0.0009%). This premature translational stop signal has been observed in individual(s) with Lynch syndrome (PMID: 9311737, 15849733, 18270343, 20215533, 20233461, 20587412, 21598002, 23047549). ClinVar contains an entry for this variant (Variation ID: 36572). For these reasons, this variant has been classified as Pathogenic. -
Lynch syndrome 4 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingClinical Genomics Laboratory, Washington University in St. LouisJan 03, 2024The MSH2 c.2038C>T (p.Arg680Ter) variant has been reported in many individuals affected with Lynch syndrome (Álvarez K et al., PMID: 32549215; Goldberg Y et al., PMID: 25430799; Jiang W et al., PMID: 30521064; Lagerstedt-Robinson K et al., PMID: 27601186; Zhang J et al., PMID: 35939113). This variant has been reported in the ClinVar database as a germline pathogenic variant by 16 submitters, including an expert panel. This variant is only observed on 1/251,446 alleles in the general population (gnomAD v.2.1.1), indicating it is not a common variant. This variant causes a premature termination codon, which is predicted to lead to nonsense mediated decay. Based on available information and the ACMG/AMP guidelines for variant interpretation (Richards S et al., PMID: 25741868), this variant is classified as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.66
CADD
Pathogenic
54
DANN
Uncertain
1.0
Eigen
Pathogenic
0.95
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.98
D
MutationTaster
Benign
1.0
A;A;A
Vest4
0.96
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs63749932; hg19: chr2-47703538; COSMIC: COSV51875657; COSMIC: COSV51875657; API