rs3771274

Variant names:

• chr2-47436706-G-A
• rs3771274
• NM_000251.3:c.1276+6765G>A

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_000251.3(MSH2):​c.1276+6765G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.53 in 151,988 control chromosomes in the GnomAD database, including 23,555 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).

• Frequency: Genomes: 𝑓 0.53 (23555 hom., cov: 31)
• Consequence: MSH2 NM_000251.3 intron
• Clinical Significance: Benign reviewed by expert panel B:1
• Conservation: PhyloP100: -1.86
• Publications: 6 publications found

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

ACMG classification

Our verdict: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant 2-47436706-G-A is Benign according to our data. Variant chr2-47436706-G-A is described in ClinVar as Benign. ClinVar VariationId is 90598.Status of the report is reviewed_by_expert_panel, 3 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.775 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSH2	NM_000251.3	c.1276+6765G>A		intron_variant	Intron 7 of 15	ENST00000233146.7	NP_000242.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSH2	ENST00000233146.7	c.1276+6765G>A		intron_variant	Intron 7 of 15	1	NM_000251.3	ENSP00000233146.2

Frequencies

GnomAD3 genomes AF: 0.529 AC: 80397 AN: 151868 Hom.: 23510 Cov.: 31

Gnomad AFR AF: 0.782

Gnomad AMI AF: 0.535

Gnomad AMR AF: 0.419

Gnomad ASJ AF: 0.370

Gnomad EAS AF: 0.677

Gnomad SAS AF: 0.474

Gnomad FIN AF: 0.532

Gnomad MID AF: 0.411

Gnomad NFE AF: 0.402

Gnomad OTH AF: 0.487

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.530 AC: 80499 AN: 151988 Hom.: 23555 Cov.: 31 AF XY: 0.532 AC XY: 39546 AN XY: 74268

African (AFR) AF: 0.782 AC: 32467 AN: 41500

American (AMR) AF: 0.419 AC: 6397 AN: 15268

Ashkenazi Jewish (ASJ) AF: 0.370 AC: 1280 AN: 3464

East Asian (EAS) AF: 0.676 AC: 3493 AN: 5168

South Asian (SAS) AF: 0.475 AC: 2288 AN: 4816

European-Finnish (FIN) AF: 0.532 AC: 5607 AN: 10532

Middle Eastern (MID) AF: 0.408 AC: 120 AN: 294

European-Non Finnish (NFE) AF: 0.402 AC: 27336 AN: 67930

Other (OTH) AF: 0.486 AC: 1024 AN: 2106

Alfa AF: 0.493 Hom.: 3302

Bravo AF: 0.530

Asia WGS AF: 0.579 AC: 2016 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: reviewed by expert panel

Submissions by phenotype

Lynch syndrome Benign:1

Sep 05, 2013

International Society for Gastrointestinal Hereditary Tumours (InSiGHT)

Significance: Benign

Review Status: reviewed by expert panel

Collection Method: research

MAF >1% -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.51
DANN	Benign	0.74
PhyloP100		-1.9
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs3771274; hg19: chr2-47663845;