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| Gene | MLH1 |
| Variant | I219L |
| Impact List | missense |
| Protein Effect | no effect |
| Gene Variant Descriptions | MLH1 I219L lies within the ATPase domain of the Mlh1 protein (PMID: 22753075). I219L is a common polymorphism (PMID: 8872463, PMID: 16982745) with activity comparable to wild-type Mlh1, as demonstrated by binding to Pms2 and Exo1 comparable to wild-type in a yeast two hybrid assay (PMID: 12810663), interaction with Pms2 similar to wild-type in culture, sufficient mismatch repair (MMR) activity to provide methylation sensitivity in culture (PMID: 16982745), and MMR activity comparable to wild-type in yeast assays and in an in vitro assay (PMID: 17510385). |
| Associated Drug Resistance | |
| Category Variants Paths |
MLH1 mutant MLH1 I219L |
| Transcript | NM_000249.4 |
| gDNA | chr3:g.37012077A>C |
| cDNA | c.655A>C |
| Protein | p.I219L |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_000249.4 | chr3:g.37012077A>C | c.655A>C | p.I219L | RefSeq | GRCh38/hg38 |
| XM_005265161.3 | chr3:g.37012077A>C | c.655A>C | p.I219L | RefSeq | GRCh38/hg38 |
| NM_001354630.2 | chr3:g.37012077A>C | c.655A>C | p.I219L | RefSeq | GRCh38/hg38 |
| NM_001354628.2 | chr3:g.37012077A>C | c.655A>C | p.I219L | RefSeq | GRCh38/hg38 |
| NM_001258271.2 | chr3:g.37012077A>C | c.655A>C | p.I219L | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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