rs3771274

chr2-47436706-G-A

Variant summary

Our verdict is Benign. Variant got -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

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]

ACMG classification

Verdict is Benign. Variant got -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 id is 90598.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr2-47436706-G-A is described in Lovd as [Benign].
• 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/exons	MANE	UniProt
MSH2	NM_000251.3	c.1276+6765G>A		intron_variant		ENST00000233146.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MSH2	ENST00000233146.7	c.1276+6765G>A		intron_variant		1	NM_000251.3	P1

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

Gnomad4 AFR AF: 0.782

Gnomad4 AMR AF: 0.419

Gnomad4 ASJ AF: 0.370

Gnomad4 EAS AF: 0.676

Gnomad4 SAS AF: 0.475

Gnomad4 FIN AF: 0.532

Gnomad4 NFE AF: 0.402

Gnomad4 OTH AF: 0.486

Alfa AF: 0.485 Hom.: 3089

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

Benign, reviewed by expert panel

research

International Society for Gastrointestinal Hereditary Tumours (InSiGHT)

Sep 05, 2013

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

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

Other links and lift over

dbSNP: rs3771274; hg19: chr2-47663845;