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| Gene | FLT3 |
| Variant | F691L |
| Impact List | missense |
| Protein Effect | no effect - predicted |
| Gene Variant Descriptions | FLT3 F691L lies within the protein kinase domain of the Flt3 protein (PMID: 23430109). F691L has been demonstrated to promote secondary drug resistance in the context of FLT3 internal tandem duplication (FLT3-ITD) mutations (PMID: 23430109, PMID: 19318574, PMID: 22504184, PMID: 29187377), but is not transforming in cell culture (PMID: 30651561), and therefore, is predicted to have no effect on Flt3 protein function. |
| Associated Drug Resistance | Y |
| Category Variants Paths |
FLT3 mutant FLT3 exon17 FLT3 F691L |
| Transcript | NM_004119.3 |
| gDNA | chr13:g.28027224A>G |
| cDNA | c.2071T>C |
| Protein | p.F691L |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_004119.2 | chr13:g.28027224A>G | c.2071T>C | p.F691L | RefSeq | GRCh38/hg38 |
| NM_004119.3 | chr13:g.28027224A>G | c.2071T>C | p.F691L | RefSeq | GRCh38/hg38 |
| NM_004119 | chr13:g.28027224A>G | c.2071T>C | p.F691L | RefSeq | GRCh38/hg38 |
| XM_011535015 | chr13:g.28027167A>G | c.2071T>C | p.F691L | RefSeq | GRCh38/hg38 |
| XM_011535015.2 | chr13:g.28027167A>G | c.2071T>C | p.F691L | RefSeq | GRCh38/hg38 |
| XM_011535015.3 | chr13:g.28027167A>G | c.2071T>C | p.F691L | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| FLT3 F691L | hematologic cancer | sensitive | Narazaciclib | Preclinical - Cell culture | Actionable | In a preclinical study, Narazaciclib (ON123300) inhibited proliferation of cells expressing FLT3 F691L in culture (PMID: 38641704). | 38641704 |