2-47403189-G-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The ENST00000233146.7(MSH2):​c.-3G>C variant causes a 5 prime UTR change. The variant allele was found at a frequency of 0.0000257 in 1,592,618 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

MSH2
ENST00000233146.7 5_prime_UTR

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:2

Conservation

PhyloP100: 4.19
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 Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.35).
BP6
Variant 2-47403189-G-C is Benign according to our data. Variant chr2-47403189-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 127624.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=8}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MSH2NM_000251.3 linkuse as main transcriptc.-3G>C 5_prime_UTR_variant 1/16 ENST00000233146.7 NP_000242.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MSH2ENST00000233146.7 linkuse as main transcriptc.-3G>C 5_prime_UTR_variant 1/161 NM_000251.3 ENSP00000233146 P1P43246-1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152254
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000410
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000188
AC:
4
AN:
212752
Hom.:
0
AF XY:
0.0000173
AC XY:
2
AN XY:
115598
show subpopulations
Gnomad AFR exome
AF:
0.000236
Gnomad AMR exome
AF:
0.0000329
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000160
AC:
23
AN:
1440364
Hom.:
0
Cov.:
31
AF XY:
0.0000154
AC XY:
11
AN XY:
714588
show subpopulations
Gnomad4 AFR exome
AF:
0.000301
Gnomad4 AMR exome
AF:
0.0000486
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:
0.00000544
Gnomad4 OTH exome
AF:
0.0000838
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152254
Hom.:
0
Cov.:
33
AF XY:
0.000121
AC XY:
9
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.000410
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.000140

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:10Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoOct 11, 2017- -
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpApr 17, 2024Variant summary: MSH2 c.-3G>C is located in the untranslated mRNA region upstream of the initiation codon. The variant allele was found at a frequency of 1.9e-05 in 212752 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.-3G>C has been reported in the literature in individuals affected with Colorectal Cancer (Yurgelun_2017). These report(s) do not provide unequivocal conclusions about association of the variant with Hereditary Nonpolyposis Colorectal Cancer. Co-occurrences with other pathogenic variant(s) have been reported (MLH1 c.2070_2071insTT, p.I691Lfs), providing supporting evidence for a benign role (Yurgelun_2017). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 28135145). ClinVar contains an entry for this variant (Variation ID: 127624). Based on the evidence outlined above, the variant was classified as uncertain significance. -
Lynch syndrome Uncertain:2
Uncertain significance, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The MSH2 c.-3G>C variant was not identified in the literature nor was it identified in the COGR, Cosmic, UMD-LSDB, Zhejiang University Database, Mismatch Repair Genes Variant Database, or InSiGHT Hereditary Tumors databases. The variant was identified in dbSNP (ID: rs587779960 as "With Uncertain significance allele") and ClinVar (5x as uncertain significance by GeneDx, Ambry Genetics, Counsyl, Color Genomics, and Integrated Genetics/Laboratory Corporation of America). The variant was identified in control databases in 8 of 238158 chromosomes at a frequency of 0.00003 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 7 of 20486 chromosomes (freq: 0.0003) and Latino in 1 of 30410 chromosomes (freq: 0.00003); it was not observed in the Other, European, Ashkenazi Jewish, East Asian, Finnish, or South Asian populations. The c.-3G>C variant is located in the kozak consensus sequence and typically a purine (adenine or guanine) is always observed at this position, increasing the likelihood this variant may have clinical significance. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
Uncertain significance, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthJan 11, 2024This variant is located in the 5' untranslated region of the MSH2 gene. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with MSH2-related disorders in the literature. This variant has been identified in 7/244138 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthApr 17, 2023This variant is located in the 5' untranslated region of the MSH2 gene. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with MSH2-related disorders in the literature. This variant has been identified in 7/244138 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 13, 2023The c.-3G>C variant is located in the 5' untranslated region (5’ UTR) of the MSH2 gene. This variant results from a G to C substitution 3 bases upstream from the first translated codon. This nucleotide position is not well conserved in available vertebrate species. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Lynch syndrome 1 Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingMyriad Genetics, Inc.May 08, 2023This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -
Uncertain significance, criteria provided, single submitterclinical testingCounsylMar 29, 2016- -
not provided Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoJan 14, 2023The frequency of this variant in the general population, 0.00028 (6/21394 chromosomes, http://gnomad.broadinstitute.org), is uninformative in assessment of its pathogenicity. To the best of our knowledge, it has not been reported in individuals with an MSH2 related cancer. However, this variant has been described in the Exome Aggregation Consortium (ExAC) in publication (PMID: 26888055 (2016)) Based on the available information, we are unable to determine the clinical significance of this variant. -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2021Nucleotide substitution has no predicted effect on splicing and is not conserved across species; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 27535533) -
MSH2-related disorder Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJun 10, 2024The MSH2 c.-3G>C variant is located in the 5' untranslated region. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.028% of alleles in individuals of African descent in gnomAD and has conflicting interpretations of likely benign and uncertain significance in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/127624/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Hereditary nonpolyposis colorectal neoplasms Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024This variant occurs in a non-coding region of the MSH2 gene. It does not change the encoded amino acid sequence of the MSH2 protein. This variant is present in population databases (rs587779960, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with MSH2-related conditions. ClinVar contains an entry for this variant (Variation ID: 127624). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.35
CADD
Benign
18
DANN
Benign
0.83
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs587779960; hg19: chr2-47630328; API