FLT3 and acute myeloid leukemia: We thank the German AMLSG study group for access to AML samples, Torsten Haferlach (MLL, Munich) for providing additional TET2-mutated samples and mutational information on selected patients, Florian Heidel (University of Jena) for the kind gift of Ba/F3_FLT3-WT and Ba/F3_FLT3-ITD cells, Dieter Saur (TUM) for expert assistance with BLI imaging and Dirk Metzler for advice on RNAseq analysis.