Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_000251.3(MSH2):c.2006-1G>A variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
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
Our verdict: Pathogenic. The variant received 18 ACMG points.
PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 2-47476366-G-A is Pathogenic according to our data. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-47476366-G-A is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 1784319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
This variant is considered likely pathogenic. This variant occurs within a consensus splice junction and is predicted to result in abnormal mRNA splicing of either an out-of-frame exon or an in-frame exon necessary for protein stability and/or normal function. -
The c.2006-1G>A intronic pathogenic mutation results from a G to A substitution one nucleotide upstream from coding exon 13 of the MSH2 gene. This variant was not reported in population-based cohorts in the Genome Aggregation Database (gnomAD). In addition, alterations that disrupt the canonical splice site are expected to cause aberrant splicing, resulting in an abnormal protein or a transcript that is subject to nonsense-mediated mRNA decay. As such, this alteration is classified as a disease-causing mutation. -