chr2-47783343-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_000179.3(MSH6):​c.110C>T​(p.Ala37Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,609,686 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MSH6
NM_000179.3 missense

Scores

1
1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.374
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 Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08436978).
BP6
Variant 2-47783343-C-T is Benign according to our data. Variant chr2-47783343-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 455114.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MSH6NM_000179.3 linkuse as main transcriptc.110C>T p.Ala37Val 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.110C>T p.Ala37Val missense_variant 1/101 NM_000179.3 ENSP00000234420 P4P52701-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152194
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000128
AC:
3
AN:
233764
Hom.:
0
AF XY:
0.0000155
AC XY:
2
AN XY:
128868
show subpopulations
Gnomad AFR exome
AF:
0.0000745
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000574
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000974
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1457376
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
724926
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:
9.01e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152310
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.0000653
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:
0.0000313
Hom.:
0
ExAC
AF:
0.0000169
AC:
2

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsFeb 07, 2023This 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. -
Uncertain significance, criteria provided, single submittercurationSema4, Sema4Jan 04, 2022- -
Hereditary nonpolyposis colorectal neoplasms Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
8.7
DANN
Benign
0.90
DEOGEN2
Benign
0.28
.;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.0067
N
LIST_S2
Benign
0.58
T;T
M_CAP
Pathogenic
0.83
D
MetaRNN
Benign
0.084
T;T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
0.81
L;L
MutationTaster
Benign
1.0
N;N
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-0.19
N;N
REVEL
Benign
0.20
Sift
Benign
0.41
T;T
Sift4G
Benign
0.29
T;T
Polyphen
0.0070
.;B
Vest4
0.14
MutPred
0.23
Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);
MVP
0.44
ClinPred
0.019
T
GERP RS
-4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.035
gMVP
0.33

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: rs763104308; hg19: chr2-48010482; COSMIC: COSV99316759; COSMIC: COSV99316759; API