NM_000251.3:c.287G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP6_Very_Strong

The NM_000251.3(MSH2):c.287G>A(p.Arg96His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,611,882 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R96C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

MSH2
NM_000251.3 missense

Scores

Clinical Significance

Likely benign reviewed by expert panel B:10

Conservation

PhyloP100: 8.66

Publications

14 publications found

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]

MSH2 Gene-Disease associations (from GenCC):

Lynch syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet
Lynch syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
Muir-Torre syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, G2P
mismatch repair cancer syndrome 1
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
mismatch repair cancer syndrome 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
ovarian cancer
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
malignant pancreatic neoplasm
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
prostate cancer
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
rhabdomyosarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
breast cancer
Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
hereditary breast carcinoma
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

MSH2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP6

Variant 2-47408476-G-A is Benign according to our data. Variant chr2-47408476-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 91053.Status of the report is reviewed_by_expert_panel, 3 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSH2	NM_000251.3 link	c.287G>A	p.Arg96His	missense_variant	Exon 2 of 16	ENST00000233146.7	NP_000242.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSH2	ENST00000233146.7 link	c.287G>A	p.Arg96His	missense_variant	Exon 2 of 16	1	NM_000251.3	ENSP00000233146.2

Frequencies

GnomAD3 genomes

AF:

0.0000330

AC:

AN:

151646

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000955

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000199

AC:

AN:

251288

AF XY:

0.00000736

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000281

AC:

AN:

1460236

Hom.:

Cov.:

AF XY:

0.0000317

AC XY:

AN XY:

726488

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39658

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86158

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000342

AC:

AN:

1110648

Other (OTH)

AF:

0.0000166

AC:

AN:

60328

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.453

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000330

AC:

AN:

151646

Hom.:

Cov.:

AF XY:

0.0000405

AC XY:

AN XY:

74016

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41242

American (AMR)

AF:

0.00

AC:

AN:

15178

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4806

European-Finnish (FIN)

AF:

0.0000955

AC:

AN:

10468

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000589

AC:

AN:

67962

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.445

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000529

Hom.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:10

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Lynch syndrome 1

Benign:3

Dec 03, 2024

Myriad Genetics, Inc.

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This 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: 27363726]. -

May 28, 2019

Mendelics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 23, 2017

Counsyl

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Hereditary cancer-predisposing syndrome

Benign:2

Feb 01, 2019

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This 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. -

Nov 25, 2015

Color Diagnostics, LLC DBA Color Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Mar 30, 2020

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: MSH2 c.287G>A (p.Arg96His) results in a non-conservative amino acid change located in the N-terminal domain (IPR007695) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 2e-05 in 251288 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.287G>A has been reported in the literature together with an MSH2 frameshift variant in a family affected with Lynch Syndrome, authors noted that the variant of interest did not segregate with the disease (Wijnen_1995). In addition, a co-occurrence with a (likely) pathogenic variant has also been reported (RAD51C c.1026+5_1026+7delGTA; in an LCA internal sample), providing supporting evidence for a benign role. Publications also reported experimental evidence evaluating an impact on protein function, and demonstrated no effect on MMR activity for this variant (Martinez_2010, Houlleberghs_2016). Six submitters, including an expert panel (InSiGHT), have provided clinical-significance assessments for this variant in ClinVar without evidence for independent evaluation, and all of them classified the variant as likely benign. Based on the evidence outlined above, the variant was classified as likely benign. -

Lynch syndrome

Benign:1

Sep 05, 2013

International Society for Gastrointestinal Hereditary Tumours (InSiGHT)

Significance:Likely benign

Review Status:reviewed by expert panel

Collection Method:research

Multifactorial likelihood analysis posterior probability 0.001-0.049 -

Muir-Torré syndrome

Benign:1

Mar 06, 2023

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Jun 01, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 9311737, 18547406, 12547705, 12414824, 15340264, 22949387, 17074586, 7726159, 20176959, 22045683, 27266541) -

Hereditary nonpolyposis colorectal neoplasms

Benign:1

Dec 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.18

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.72

D;D;.;.;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

D;D;D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.59

D;D;D;D;D

MetaSVM

Pathogenic

0.83

MutationAssessor

Uncertain

2.1

M;.;.;.;.

PhyloP100

8.7

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-3.4

D;D;D;.;D

REVEL

Pathogenic

0.73

Sift

Benign

0.090

T;T;T;.;T

Sift4G

Benign

0.12

T;D;T;.;T

Polyphen

0.99

D;.;.;.;D

Vest4

0.68

MutPred

0.36

Loss of MoRF binding (P = 0.013);.;.;Loss of MoRF binding (P = 0.013);Loss of MoRF binding (P = 0.013);

MVP

0.89

MPC

0.032

ClinPred

0.46

GERP RS

5.3

Varity_R

0.32

gMVP

0.59

Mutation Taster

=58/42

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over