rs3771273

Variant names:

• chr2-47431335-A-T
• rs3771273
• NM_000251.3:c.1276+1394A>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000251.3(MSH2):​c.1276+1394A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.533 in 151,924 control chromosomes in the GnomAD database, including 23,653 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.53 (23653 hom., cov: 32)
• Consequence: MSH2 NM_000251.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.57
• 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 -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.0).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.769 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSH2	NM_000251.3	c.1276+1394A>T		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+1394A>T		intron_variant	Intron 7 of 15	1	NM_000251.3	ENSP00000233146.2

Frequencies

GnomAD3 genomes AF: 0.532 AC: 80812 AN: 151806 Hom.: 23606 Cov.: 32

Gnomad AFR AF: 0.776

Gnomad AMI AF: 0.541

Gnomad AMR AF: 0.420

Gnomad ASJ AF: 0.391

Gnomad EAS AF: 0.678

Gnomad SAS AF: 0.478

Gnomad FIN AF: 0.533

Gnomad MID AF: 0.443

Gnomad NFE AF: 0.411

Gnomad OTH AF: 0.493

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

GnomAD4 genome AF: 0.533 AC: 80918 AN: 151924 Hom.: 23653 Cov.: 32 AF XY: 0.535 AC XY: 39698 AN XY: 74238

African (AFR) AF: 0.776 AC: 32182 AN: 41454

American (AMR) AF: 0.419 AC: 6399 AN: 15260

Ashkenazi Jewish (ASJ) AF: 0.391 AC: 1356 AN: 3468

East Asian (EAS) AF: 0.677 AC: 3499 AN: 5166

South Asian (SAS) AF: 0.480 AC: 2309 AN: 4814

European-Finnish (FIN) AF: 0.533 AC: 5606 AN: 10508

Middle Eastern (MID) AF: 0.442 AC: 130 AN: 294

European-Non Finnish (NFE) AF: 0.411 AC: 27908 AN: 67944

Other (OTH) AF: 0.492 AC: 1039 AN: 2110

Alfa AF: 0.490 Hom.: 2435

Bravo AF: 0.533

Asia WGS AF: 0.581 AC: 2003 AN: 3446

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.17
DANN	Benign	0.094
PhyloP100		-1.6
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: rs3771273; hg19: chr2-47658474;