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| Gene | FLT3 |
| Variant | N841I |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | FLT3 N841I lies within the protein kinase domain of the Flt3 protein (UniProt.org). N841I results in constitutive phosphorylation of Flt3, activation of Stat5 and Erk, and transformation in culture (PMID: 15178581). |
| Associated Drug Resistance | |
| Category Variants Paths |
FLT3 mutant FLT3 act mut FLT3 N841I FLT3 mutant FLT3 exon20 FLT3 N841I |
| Transcript | NM_004119.3 |
| gDNA | chr13:g.28018486T>A |
| cDNA | c.2522A>T |
| Protein | p.N841I |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_004119 | chr13:g.28018486T>A | c.2522A>T | p.N841I | RefSeq | GRCh38/hg38 |
| NM_004119.3 | chr13:g.28018486T>A | c.2522A>T | p.N841I | RefSeq | GRCh38/hg38 |
| NM_004119.2 | chr13:g.28018486T>A | c.2522A>T | p.N841I | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| FLT3 N841I | hematologic cancer | sensitive | Gilteritinib | Preclinical - Cell culture | Actionable | In a preclinical study, Xospata (gilteritinib) resulted in reduced cell viability in transformed cells expressing FLT3 N841I in culture (PMID: 32040554). | 32040554 |
| FLT3 N841I | hematologic cancer | sensitive | Gilteritinib | Preclinical - Cell culture | Actionable | In a preclinical study, Xospata (gilteritinib) treatment decreased viability in a cell line expressing FLT3 N841I in culture (PMID: 40196870). | 40196870 |
| FLT3 N841I | hematologic cancer | sensitive | Quizartinib | Preclinical - Cell culture | Actionable | In a preclinical study, Vanflyta (quizartinib) treatment decreased viability in a cell line expressing FLT3 N841I in culture (PMID: 40196870). | 40196870 |
| FLT3 N841I | hematologic cancer | sensitive | Midostaurin | Preclinical - Cell culture | Actionable | In a preclinical study, Rydapt (midostaurin) treatment decreased viability in a cell line expressing FLT3 N841I in culture (PMID: 40196870). | 40196870 |