2-47403078-G-C

Variant names:

• chr2-47403078-G-C
• rs786203146
• NM_001258281.1:c.-128G>C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001258281.1(MSH2):​c.-128G>C variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 33)
• Consequence: MSH2 NM_001258281.1 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.463

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.36).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSH2	NM_001258281.1	c.-128G>C		5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 17		NP_001245210.1
MSH2	NM_001258281.1	c.-128G>C		5_prime_UTR_variant	Exon 1 of 17		NP_001245210.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSH2	ENST00000543555	c.-128G>C		5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 17	2		ENSP00000442697.1
MSH2	ENST00000543555	c.-128G>C		5_prime_UTR_variant	Exon 1 of 17	2		ENSP00000442697.1
MSH2	ENST00000645506.1	c.-114G>C		upstream_gene_variant				ENSP00000495455.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 12

GnomAD4 genome Cov.: 33

Bravo AF: 0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.36
CADD	Benign	12
DANN	Benign	0.82

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: rs786203146; hg19: chr2-47630217;