2-47410139-A-T
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The ENST00000233146.7(MSH2):c.412A>T(p.Asn138Tyr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N138S) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 31)
Consequence
MSH2
ENST00000233146.7 missense
ENST00000233146.7 missense
Scores
6
7
6
Clinical Significance
Conservation
PhyloP100: 4.24
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MSH2 | NM_000251.3 | c.412A>T | p.Asn138Tyr | missense_variant | 3/16 | ENST00000233146.7 | NP_000242.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MSH2 | ENST00000233146.7 | c.412A>T | p.Asn138Tyr | missense_variant | 3/16 | 1 | NM_000251.3 | ENSP00000233146 | P1 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD3 genomes
Cov.:
31
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome Cov.: 31
GnomAD4 genome
Cov.:
31
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hereditary nonpolyposis colorectal neoplasms Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 01, 2020 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with MSH2-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces asparagine with tyrosine at codon 138 of the MSH2 protein (p.Asn138Tyr). The asparagine residue is highly conserved and there is a large physicochemical difference between asparagine and tyrosine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Pathogenic
D;T;.;.;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D;D;D
M_CAP
Uncertain
D
MetaRNN
Uncertain
D;D;D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
M;.;.;.;.
MutationTaster
Benign
D;D;D
PrimateAI
Benign
T
PROVEAN
Pathogenic
D;D;D;.;D
REVEL
Pathogenic
Sift
Benign
D;D;D;.;D
Sift4G
Uncertain
D;D;D;.;T
Polyphen
D;.;.;.;P
Vest4
MutPred
Loss of sheet (P = 0.0817);.;.;Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.