rs587781627

Variant names:

• chr2-47445631-A-C
• rs587781627
• NM_000251.3:c.1360A>C

Your query was ambiguous. Multiple possible variants found:

• chr2-47445631-A-C
• chr2-47445631-A-G
• chr2-47445631-A-T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1 PM2 PM5

The NM_000251.3(MSH2):​c.1360A>C​(p.Ile454Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I454R) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: MSH2 NM_000251.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:4
• Conservation: PhyloP100: 6.72
• Publications: 0 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), Ambry Genetics, Genomics England PanelApp
• Muir-Torre syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Genomics England PanelApp
• mismatch repair cancer syndrome 1

  Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• mismatch repair cancer syndrome 2

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• 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: Likely_pathogenic. The variant received 6 ACMG points.

• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 19 benign, 37 uncertain in NM_000251.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr2-47445632-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 495768.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000251.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MSH2	NM_000251.3	MANE Select	c.1360A>C	p.Ile454Leu	missense	Exon 8 of 16	NP_000242.1	P43246-1
	MSH2	NM_001406674.1		c.1360A>C	p.Ile454Leu	missense	Exon 8 of 18	NP_001393603.1
	MSH2	NM_001406631.1		c.1360A>C	p.Ile454Leu	missense	Exon 8 of 18	NP_001393560.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MSH2	ENST00000233146.7	TSL:1 MANE Select	c.1360A>C	p.Ile454Leu	missense	Exon 8 of 16	ENSP00000233146.2	P43246-1
	MSH2	ENST00000406134.5	TSL:1	c.1360A>C	p.Ile454Leu	missense	Exon 8 of 16	ENSP00000384199.1	E9PHA6
	MSH2	ENST00000918107.1		c.1411A>C	p.Ile471Leu	missense	Exon 9 of 17	ENSP00000588166.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	not provided (2)
-	1	-	Hereditary cancer-predisposing syndrome (1)
-	1	-	Hereditary nonpolyposis colorectal neoplasms (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.62	D
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Benign	0.053	D
MetaRNN	Uncertain	0.66	D
MetaSVM	Uncertain	0.38	D
MutationAssessor	Benign	2.0	M
PhyloP100		6.7
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	-1.7	N
REVEL	Uncertain	0.63
Sift	Benign	0.050	D
Sift4G	Benign	0.073	T
Polyphen		0.22	B
Vest4		0.61
MutPred		0.64		Gain of disorder (P = 0.0468)
MVP		0.93
MPC		0.0071
ClinPred		0.87	D
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.78
gMVP		0.53
Mutation Taster		=66/34	polymorphism

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: rs587781627; hg19: chr2-47672770;