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Gene FLT3
Variant D835Y
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions FLT3 D835Y lies within the protein kinase domain activation loop of the Flt3 protein (UniProt.org, PMID: 11290608). D835Y results in constitutive phosphorylation of Flt3 and activation of Stat5, Erk signaling, leading to transformation of cultured cells (PMID: 15256420, PMID: 30651561), and has been demonstrated to promote secondary drug resistance in the context of FLT3 internal tandem duplication (FLT3-ITD) mutations (PMID: 22504184, PMID: 29187377).
Associated Drug Resistance Y
Category Variants Paths

FLT3 mutant FLT3 act mut FLT3 D835Y

FLT3 mutant FLT3 exon20 FLT3 D835X FLT3 D835Y

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Transcript NM_004119.2
gDNA chr13:g.28018505C>A
cDNA c.2503G>T
Protein p.D835Y
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_004119 chr13:g.28018505C>A c.2503G>T p.D835Y RefSeq GRCh38/hg38
NM_004119.2 chr13:g.28018505C>A c.2503G>T p.D835Y RefSeq GRCh38/hg38

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  • Simple literal full or partial string matches
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  • Use quotes to match a longer phrase which contains spaces "mtor c1483f"

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
FLT3 exon 14 ins FLT3 D835Y Advanced Solid Tumor resistant Pexidartinib Preclinical Actionable In a preclinical study, FLT3 D835Y conferred resistance to PLX3397 when expressed in a compound mutation with FLT3-ITD in cell culture (PMID: 25847190). 25847190
FLT3 exon 14 ins FLT3 D835Y leukemia predicted - resistant Pexidartinib Case Reports/Case Series Actionable In a clinical case study, a patient with FLT3-ITD positive leukemia initially responded to Pexidartinib (PLX3397) therapy, but experienced relapse after emergence of FLT3 D835Y on the same allele as the FLT3-ITD mutation (PMID: 25847190). 25847190
FLT3 exon 14 ins FLT3 D835Y Advanced Solid Tumor sensitive Brigatinib Preclinical - Cell culture Actionable In a preclinical study, Alunbrig (brigatinib) inhibited growth of transformed cells expressing a FLT3-ITD mutation and FLT3 D835Y in culture (PMID: 27780853). 27780853
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive MRX-2843 Preclinical - Cell line xenograft Actionable In a preclinical study, MRX-2843 inhibited Flt3 signaling, resulted in growth inhibition in Quizartinib (AC220)-resistant acute myeloid leukemia cells harboring FLT3 internal tandem duplication (ITD) and D835Y in culture, and prolonged survival in cell line xenograft models (PMID: 27158668). 27158668
FLT3 exon 14 ins FLT3 D835Y Advanced Solid Tumor sensitive MRX-2843 Preclinical - Cell culture Actionable In a preclinical study, MRX-2843 inhibited Flt3 signaling, resulted in growth inhibition in Quizartinib (AC220)-resistant transformed cells over expressing both FLT3 internal tandem duplication (ITD) and D835Y in culture (PMID: 27158668). 27158668
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive FF-10101 Preclinical - Cell line xenograft Actionable In a preclinical study, FF-10101 inhibited Flt3 autophosphorylation and growth of leukemic cell lines and inhibited growth of cell line xenografts with FLT3-ITD/D835Y compound mutations (PMID: 29187377). 29187377
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive FF-10101 Preclinical - Cell culture Actionable In a preclinical study, FF-10101 treatment inhibited growth of acute myeloid leukemia cells harboring FLT3-ITD and FLT3 D835Y in culture (PMID: 35395091). 35395091
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive CG-806 Preclinical - Cell culture Actionable In a preclinical study, CG-806 inhibited proliferation of a cell line expressing a FLT3 exon 14 insertion (ITD) mutation and FLT3 D835Y in culture (PMID: 35499387). 35499387
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive LAM-003 Preclinical - Patient cell culture Actionable In a preclinical study, LAM-003 treatment inhibited viability of an acute myeloid leukemia cell line and patient-derived cells harboring FLT3 internal tandem duplication (ITD) and FLT3 D835Y in culture (PMID: 31751472). 31751472
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Sorafenib Case Reports/Case Series Actionable In a clinical case study, FLT3 D835Y was identified as an acquired resistance mutation in a patient with acute myeloid leukemia harboring a FLT3 internal tandem duplication (ITD) whose disease progressed on Nexavar (sorafenib) after initial response (PMID: 27908881). 27908881
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Sorafenib Preclinical - Patient cell culture Actionable In a preclinical study, a patient-derived acute myeloid leukemia cell line harboring a FLT3 internal tandem duplication (ITD) and FLT3 D835Y demonstrated resistance to Nexavar (sorafenib) treatment in culture (PMID: 27908881). 27908881
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Sorafenib Preclinical - Cell culture Actionable In a preclinical study, an acute myeloid cell line harboring FLT3 internal tandem duplication (ITD) and FLT3 D835Y did not demonstrate sensitivity to Nexavar (sorafenib) treatment in culture (PMID: 31751472). 31751472
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Sorafenib Preclinical - Cell line xenograft Actionable In a preclinical study, FLT3 D835Y was identified as a secondary resistance mutation in FLT3 ITD-positive acute myeloid leukemia cell line xenograft models that progressed on Nexavar (sorafenib) (PMID: 35344039). 35344039
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Tandutinib Preclinical - Cell culture Actionable In a preclinical study, an acute myeloid cell line harboring FLT3 internal tandem duplication (ITD) and FLT3 D835Y demonstrated resistance to Tandutinib (CT53518) treatment in culture (PMID: 31751472). 31751472
FLT3 exon 14 ins FLT3 D835Y hematologic cancer no benefit Palbociclib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing FLT3 ITD and FLT3 D835Y did not respond to treatment with Ibrance (palbociclib) in culture (PMID: 30544932). 30544932
FLT3 exon 14 ins FLT3 D835Y hematologic cancer no benefit Danusertib + Palbociclib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing FLT3 ITD and FLT3 D835Y did not respond to the combination treatment of Ibrance (palbociclib) and Danusertib (PHA-739358) in culture (PMID: 30544932). 30544932
FLT3 exon 14 ins FLT3 D835Y hematologic cancer predicted - sensitive HQP1351 Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD and FLT3 D835Y demonstrated decreased proliferation in response to GZD824 (HQP1351) in culture, but were less sensitive to treatment than cells co-expressing FLT3-ITD with other FLT3 kinase domain mutations (PMID: 32247263). 32247263
FLT3 exon 14 ins FLT3 D835Y hematologic cancer predicted - sensitive HM43239 Preclinical Actionable In a preclinical study, HM43239 treatment inhibited transformed cells expressing FLT3 ITD and D835Y in cell culture (Cancer Res 2019;79(13 Suppl):Abstract nr 1293). detail...
FLT3 exon 14 ins FLT3 D835Y myeloid leukemia resistant A-419259 Preclinical - Cell culture Actionable In a preclinical study, transformed myeloid leukemia cells co-expressing FLT-ITD and FLT3 D835Y demonstrated resistance to A-419259 treatment in culture (PMID: 31790499). 31790499
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Quizartinib Preclinical - Patient cell culture Actionable In a preclinical study, a patient-derived acute myeloid leukemia cell line harboring a FLT3 internal tandem duplication (ITD) and FLT3 D835Y demonstrated resistance to Vanflyta (Quizartinib) treatment in culture (PMID: 27908881). 27908881
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Quizartinib Preclinical - Cell culture Actionable In a preclinical study, acute myeloid leukemia cells harboring FLT3 ITD with FLT3 D835Y were resistant to Vanflyta (quizartinib) in culture (PMID: 32040554). 32040554
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive Gilteritinib Preclinical - Patient cell culture Actionable In a preclinical study, a patient-derived acute myeloid leukemia cell line harboring a FLT3 internal tandem duplication (ITD) and FLT3 D835Y demonstrated sensitivity to Xospata (gilteritinib) treatment in culture, resulting in reduced cell viability (PMID: 27908881). 27908881
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) resulted in reduced cell viability in acute myeloid leukemia cells harboring FLT3 ITD with FLT3 D835Y in culture (PMID: 32040554). 32040554
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive Gilteritinib Preclinical - Cell line xenograft Actionable In a preclinical study, Xospata (gilteritinib) treatment inhibited growth of acute myeloid leukemia cells harboring a FLT3-ITD mutation and FLT3 D835Y in culture, and reduced tumor growth and increased survival in cell line xenograft models (PMID: 33268594). 33268594
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia conflicting Crenolanib Preclinical - Patient cell culture Actionable In a preclinical study, a patient-derived acute myeloid leukemia cell line harboring a FLT3 internal tandem duplication (ITD) and FLT3 D835Y demonstrated sensitivity to Crenolanib (CP-868596) treatment in culture, resulting in reduced cell viability (PMID: 27908881). 27908881
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia conflicting Crenolanib Preclinical - Cell line xenograft Actionable In a preclinical study, FLT3 D835Y was identified as a secondary resistance mutation in FLT3 ITD-positive acute myeloid leukemia cell line xenograft models that progressed on Crenolanib (CP-868596) (PMID: 35344039). 35344039
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia predicted - resistant Midostaurin Preclinical - Patient cell culture Actionable In a preclinical study, a patient-derived acute myeloid leukemia cell line harboring a FLT3 internal tandem duplication (ITD) and FLT3 D835Y demonstrated resistance to Rydapt (midostaurin) treatment in culture (PMID: 27908881). 27908881
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia sensitive Dubermatinib Preclinical - Cell line xenograft Actionable In a preclinical study, Dubermatinib (TP-0903) treatment resulted in cell cycle arrest and apoptosis, induced differentiation, and inhibited growth of acute myeloid leukemia cells harboring a FLT3-ITD mutation and FLT3 D835Y in culture, and reduced tumor growth and increased survival in cell line xenograft models (PMID: 33268594). 33268594
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Dubermatinib Preclinical - Cell culture Actionable In a preclinical study, Dubermatinib (TP-0903) inhibited growth of transformed cells expressing a FLT3-ITD mutation and FLT3 D835Y in culture (PMID: 33268594). 33268594
FLT3 exon 14 ins FLT3 D835Y hematologic cancer predicted - sensitive LT-171-861 Preclinical - Cell culture Actionable In a preclinical study, LT-171-861 inhibited cell viability and decreased FLT3 phosphorylation in transformed cells expressing a FLT3-ITD mutation and FLT3 D835Y in culture (PMID: 33391463). 33391463
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive KX2-391 Preclinical - Cell culture Actionable In a preclinical study, KX2-391 treatment inhibited cell viability, decreased downstream signaling, and induced apoptosis in cells expressing a FLT3-ITD mutation with FLT3 D835Y in culture (PMID: 34217323). 34217323
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia predicted - sensitive KX2-391 Preclinical - Patient cell culture Actionable In a preclinical study, KX2-391 treatment inhibited cell viability and decreased Flt3 phosphorylation in patient-derived acute myeloid leukemia cell lines harboring a FLT3-ITD mutation with FLT3 D835Y in culture (PMID: 34217323). 34217323
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia predicted - resistant Pexidartinib Case Reports/Case Series Actionable In a Phase I/II trial, an acute myeloid leukemia patient harboring a FLT3-ITD was found to have acquired FLT3 D535Y following relapse on Turalio (pexidartinib) treatment (PMID: 34103301; NCT01349049). 34103301
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Momelotinib Preclinical - Cell culture Actionable In a preclinical study, Momelotinib (CYT387) decreased phosphorylation of Flt3 and Stat5 and inhibited proliferation of transformed cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive FF-10101 Preclinical - Cell culture Actionable In a preclinical study, FF-10101 treatment inhibited growth of transformed hematologic cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 35395091). 35395091
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) inhibited proliferation of transformed cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) resulted in reduced cell viability in transformed cells expressing FLT3 ITD with FLT3 D835Y in culture (PMID: 32040554). 32040554
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) treatment inhibited growth of transformed hematologic cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 35395091). 35395091
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib (CP-868596) treatment inhibited growth of transformed hematologic cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 35395091). 35395091
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, transformed hematologic cells expressing FLT3-ITD and FLT3 D835Y were sensitive to Crenolanib (CP-868596) treatment in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y hematologic cancer resistant Quizartinib Preclinical - Cell culture Actionable In a preclinical study, transformed hematologic cells expressing FLT3-ITD and FLT3 D835Y were resistant to treatment with Vanflyta (quizartinib) in culture (PMID: 35395091). 35395091
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, Rydapt (midostaurin) treatment inhibited growth of transformed hematologic cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 35395091). 35395091
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD and FLT3 D835Y were sensitive to Rydapt (midostaurin) treatment in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y hematologic cancer sensitive Lestaurtinib Preclinical - Cell culture Actionable In a preclinical study, Lestaurtinib (CEP-701) inhibited proliferation of transformed cells expressing FLT3-ITD and FLT3 D835Y in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y hematologic cancer resistant Sorafenib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD and FLT3 D835Y demonstrated resistance to Nexavar (sorafenib) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y hematologic cancer resistant Pacritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD and FLT3 D835Y demonstrated resistance to Vonjo (pacritinib) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 D835Y acute myeloid leukemia resistant Crenolanib + Sorafenib Preclinical - Cell line xenograft Actionable In a preclinical study, FLT3 D835Y was identified as a secondary resistance mutation in FLT3 ITD-positive acute myeloid leukemia cell line xenograft models that progressed on the combination of Crenolanib (CP-868596) and Nexavar (sorafenib) (PMID: 35344039). 35344039
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y Advanced Solid Tumor resistant Pexidartinib Preclinical Actionable In a preclinical study, transformed cells expressing a compound FLT3-ITD/F691L/D835Y mutation were resistant to PLX3397 in culture (PMID: 25847190). 25847190
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y hematologic cancer resistant Momelotinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD with FLT3 F691L and D835Y demonstrated resistance to Momelotinib (CYT387) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y hematologic cancer resistant Pacritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD, FLT3 F691L, and FLT3 D835Y demonstrated resistance to Vonjo (pacritinib) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y hematologic cancer resistant Sorafenib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD, FLT3 F691L, and FLT3 D835Y demonstrated resistance to Nexavar (sorafenib) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y hematologic cancer resistant Crenolanib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD, FLT3 F691L, and FLT3 D835Y demonstrated resistance to Crenolanib (CP-868596) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y hematologic cancer resistant Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing FLT3-ITD, FLT3 F691L, and FLT3 D835Y demonstrated resistance to Xospata (gilteritinib) in culture (PMID: 34768286). 34768286
FLT3 exon 14 ins FLT3 F691L FLT3 D835Y hematologic cancer resistant Quizartinib Preclinical - Cell culture Actionable In a preclinical study, transformed hematologic cells expressing FLT3-ITD, FLT3 F691L, and FLT3 D835Y demonstrated resistance to Vanflyta (quizartinib) in culture (PMID: 34768286). 34768286
FLT3 N676D FLT3 D835Y hematologic cancer sensitive SKI-G-801 Preclinical - Cell culture Actionable In a preclinical study, cells co-expressing FLT3 D835Y and FLT3 N676D were sensitive to SKI-G-801 in culture, demonstrating inhibition of cell growth and inhibition of Flt3 autophosphorylation (PMID: 24532805). 24532805
FLT3 F691L FLT3 D835Y hematologic cancer resistant Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib (CP-868596) did not decrease proliferation of transformed cells expressing FLT3 D835Y and F691L in culture (PMID: 30651561). 30651561
FLT3 D200N FLT3 D835Y hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib (CP-868596) decreased proliferation of transformed cells expressing FLT3 D835Y and D200N in culture (PMID: 30651561). 30651561
FLT3 L601F FLT3 D835Y hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib (CP-868596) decreased proliferation of transformed cells expressing FLT3 D835Y and L601F in culture (PMID: 30651561). 30651561
FLT3 D835Y IDH1 wild-type hematologic cancer resistant AGI-5198 Preclinical - Cell culture Actionable In a preclinical study, AGI-5198 treatment did not decrease proliferation of transformed cells expressing FLT3 D835Y and IDH1 wild-type in culture (PMID: 30651561). 30651561
FLT3 D835Y IDH1 wild-type hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib (CP-868596) decreased proliferation of transformed cells expressing FLT3 D835Y and IDH1 wild-type (PMID: 30651561). 30651561
FLT3 D835Y IDH1 wild-type hematologic cancer sensitive AGI-5198 + Crenolanib Preclinical - Cell culture Actionable In a preclinical study, the combination of Crenolanib (CP-868596) and AGI-5198 synergistically decreased proliferation of transformed cells expressing FLT3 D835Y and IDH1 wild-type in culture (PMID: 30651561). 30651561
FLT3 D835Y IDH1 R132H hematologic cancer resistant AGI-5198 Preclinical - Cell culture Actionable In a preclinical study, AGI-5198 treatment did not decrease proliferation of transformed cells expressing FLT3 D835Y and IDH1 R132H in culture (PMID: 30651561). 30651561
FLT3 D835Y IDH1 R132H hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib (CP-868596) decreased proliferation of transformed cells expressing FLT3 D835Y and IDH1 R132H in culture (PMID: 30651561). 30651561
FLT3 D835Y IDH1 R132H hematologic cancer sensitive AGI-5198 + Crenolanib Preclinical - Cell culture Actionable In a preclinical study, the combination of Crenolanib (CP-868596) and AGI-5198 synergistically decreased proliferation of transformed cells expressing FLT3 D835Y and IDH1 R132H in culture (PMID: 30651561). 30651561