chr2-47783309-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The ENST00000234420.11(MSH6):​c.76A>T​(p.Arg26Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R26G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MSH6
ENST00000234420.11 missense

Scores

2
6
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.176
Variant links:
Genes affected
MSH6 (HGNC:7329): (mutS homolog 6) This gene encodes a member of the DNA mismatch repair MutS family. In E. coli, the MutS protein helps in the recognition of mismatched nucleotides prior to their repair. A highly conserved region of approximately 150 aa, called the Walker-A adenine nucleotide binding motif, exists in MutS homologs. The encoded protein heterodimerizes with MSH2 to form a mismatch recognition complex that functions as a bidirectional molecular switch that exchanges ADP and ATP as DNA mismatches are bound and dissociated. Mutations in this gene may be associated with hereditary nonpolyposis colon cancer, colorectal cancer, and endometrial cancer. Transcripts variants encoding different isoforms have been described. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3696852).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MSH6NM_000179.3 linkuse as main transcriptc.76A>T p.Arg26Trp missense_variant 1/10 ENST00000234420.11 NP_000170.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MSH6ENST00000234420.11 linkuse as main transcriptc.76A>T p.Arg26Trp missense_variant 1/101 NM_000179.3 ENSP00000234420 P4P52701-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000414
AC:
1
AN:
241694
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
132666
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:
0.00000932
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
6.85e-7
AC:
1
AN:
1459656
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726170
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000833
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Uncertain
0.012
T
BayesDel_noAF
Benign
-0.22
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
.;T;T
Eigen
Benign
-0.82
Eigen_PC
Benign
-0.94
FATHMM_MKL
Benign
0.037
N
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Pathogenic
0.98
D
MetaRNN
Benign
0.37
T;T;T
MetaSVM
Benign
-0.49
T
MutationAssessor
Benign
0.69
N;N;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-1.1
N;N;.
REVEL
Uncertain
0.34
Sift
Uncertain
0.024
D;D;.
Sift4G
Uncertain
0.020
D;D;D
Polyphen
0.89
.;P;.
Vest4
0.41
MutPred
0.31
Loss of methylation at R26 (P = 0.0391);Loss of methylation at R26 (P = 0.0391);Loss of methylation at R26 (P = 0.0391);
MVP
0.68
ClinPred
0.16
T
GERP RS
0.73
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.1
Varity_R
0.091
gMVP
0.52

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: rs757622849; hg19: chr2-48010448; API