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| Gene | MAP2K1 |
| Variant | F53I |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | MAP2K1 F53I lies within the negative regulatory region of the Map2k1 protein (PMID: 24241536). F53I results in prolferation in low serum conditions similar to wild-type Map2k1 in a competition assay (PMID: 36442478), but confers a gain of function to Map2k1 as demonstrated by increased Erk phosphorylation in cultured cells (PMID: 32641410), increased proliferation in a competition assay in normal serum conditions, and increased transformation activity in cultured cells (PMID: 36442478). |
| Associated Drug Resistance | |
| Category Variants Paths |
MAP2K1 mutant MAP2K1 act mut MAP2K1 F53I |
| Transcript | NM_002755.4 |
| gDNA | chr15:g.66435103T>A |
| cDNA | c.157T>A |
| Protein | p.F53I |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_002755 | chr15:g.66435103T>A | c.157T>A | p.F53I | RefSeq | GRCh38/hg38 |
| NM_002755.4 | chr15:g.66435103T>A | c.157T>A | p.F53I | RefSeq | GRCh38/hg38 |
| NM_002755.3 | chr15:g.66435103T>A | c.157T>A | p.F53I | RefSeq | GRCh38/hg38 |
| XM_017022411.3 | chr15:g.66435103T>A | c.157T>A | p.F53I | RefSeq | GRCh38/hg38 |
| XM_017022411 | chr15:g.66435103T>A | c.157T>A | p.F53I | RefSeq | GRCh38/hg38 |
| XM_017022411.2 | chr15:g.66435103T>A | c.157T>A | p.F53I | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| MAP2K1 F53I | Advanced Solid Tumor | sensitive | Trametinib | Preclinical - Cell culture | Actionable | In a preclinical study, Mekinist (trametinib) inhibited viability of a transformed cell line expressing MAP2K1 F53I in culture (PMID: 36442478). | 36442478 |