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| Gene | MSH6 |
| Variant | I1109fs |
| Impact List | frameshift |
| Protein Effect | unknown |
| Gene Variant Descriptions | MSH6 I1109fs results in a change in the amino acid sequence of the Msh6 protein beginning at aa 1109 of 1360, likely resulting in premature truncation of the functional protein (UniProt.org). I1109fs (reported as I1109fs*3) is associated with a loss of Msh6 protein expression and increased microsatellite instability in tumor samples (PMID: 14974087), but has not been fully biochemically characterized and therefore, its effect on Msh6 protein function is unknown. |
| Associated Drug Resistance | |
| Category Variants Paths |
MSH6 mutant MSH6 I1109fs |
| Transcript | NM_000179.3 |
| gDNA | chr2:g.(47803571_47803572) |
| cDNA | c.(3325_3324) |
| Protein | p.I1109fs |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_001281492.2 | chr2:g.(47806271_47806272) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_001406796.1 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_001406800.1 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| XM_024452819.1 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_001281492 | chr2:g.(47806271_47806272) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_000179.3 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_001406808.1 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_001281492.1 | chr2:g.(47806271_47806272) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| XM_024452820.1 | chr2:g.(47804978_47804979) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| XM_011532798 | chr2:g.(47804978_47804979) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_000179.2 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_001406809.1 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| NM_000179 | chr2:g.(47803571_47803572) | c.(3325_3324) | p.I1109fs | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| MSH6 mutant | colorectal cancer | not applicable | N/A | Clinical Study | Diagnostic | Germline mutations in MSH6 are associated with microsatellite instability in colorectal cancer (CRC), and are diagnostic for Lynch syndrome (hereditary nonpolyposis colorectal cancer) in colorectal cancer patients (PMID: 26582061; PMID: 19125127). | 26582061 19125127 |
| MSH6 mutant | colon cancer | not applicable | N/A | Guideline | Risk Factor | Lynch syndrome results from germline mutations in DNA mismatch repair genes including MLH1, MSH2, MSH6, and PMS2, and is associated with increased risk of developing colon cancer (NCCN.org). | detail... |
| MSH6 mutant | rectum cancer | not applicable | N/A | Guideline | Risk Factor | Lynch syndrome results from germline mutations in DNA mismatch repair genes including MLH1, MSH2, MSH6, and PMS2, and is associated with increased risk of developing colorectal cancer (NCCN.org). | detail... |
| MSH6 mutant | stomach cancer | not applicable | N/A | Guideline | Risk Factor | Germline mutations in MSH6 result in Lynch syndrome, which is associated with increased risk of developing pancreatic cancer (NCCN.org). | detail... |
| MSH6 mutant | ovarian cancer | not applicable | N/A | Guideline | Risk Factor | Germline mutations in MSH6 result in Lynch syndrome, which is associated with increased risk of ovarian cancer (NCCN.org). | detail... |
| MSH6 mutant | small intestine adenocarcinoma | not applicable | N/A | Guideline | Risk Factor | Lynch syndrome results from germline mutations in DNA mismatch repair genes including MLH1, MSH2, MSH6, and PMS2, and is associated with increased risk of developing small bowel adenocarcinoma (NCCN.org). | detail... |
| MSH6 mutant | adrenocortical carcinoma | not applicable | N/A | Guideline | Risk Factor | Lynch syndrome results from germline mutations in DNA mismatch repair genes including MLH1, MSH2, MSH6, and PMS2, and is associated with increased risk of developing adrenocortical carcinoma (NCCN.org). | detail... |
| MSH6 mutant | pancreatic cancer | not applicable | N/A | Guideline | Risk Factor | Germline mutations in MSH6 result in Lynch syndrome, which is associated with increased risk of developing pancreatic cancer (NCCN.org). | detail... |
| MSH6 mutant | endometrial carcinoma | not applicable | N/A | Guideline | Risk Factor | Germline mutations in MSH6 result in Lynch syndrome, which is associated with increased risk of developing endometrial carcinoma (NCCN.org). | detail... |