rs1254906246

chr2-47414322-T-Achr2-47414322-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000251.3(MSH2):c.846T>A(p.Asp282Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D282G) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 29)
• Consequence: MSH2 NM_000251.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0240

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 Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MSH2	NM_000251.3	c.846T>A	p.Asp282Glu	missense_variant	5/16	ENST00000233146.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MSH2	ENST00000233146.7	c.846T>A	p.Asp282Glu	missense_variant	5/16	1	NM_000251.3	P1

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.23
Cadd	Benign	21
Dann	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	D;.;.;.
Eigen	Uncertain	0.27
Eigen_PC	Benign	0.20
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.92	D;D;D;D
M_CAP	Uncertain	0.14	D
MetaRNN	Uncertain	0.61	D;D;D;D
MetaSVM	Uncertain	0.35	D
MutationAssessor	Uncertain	2.0	M;.;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.70	T
PROVEAN	Uncertain	-3.2	D;D;.;D
REVEL	Pathogenic	0.75
Sift	Uncertain	0.0020	D;D;.;D
Sift4G	Uncertain	0.0050	D;D;.;T
Polyphen		0.98	D;.;.;D
Vest4		0.78
MutPred		0.37		Gain of disorder (P = 0.1327);.;Gain of disorder (P = 0.1327);Gain of disorder (P = 0.1327);
MVP		0.98
MPC		0.034
ClinPred		0.97	D
GERP RS		2.6
Varity_R		0.83
gMVP		0.33

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-47641461;