Signaling by FLT3 fusion proteins

Signaling by FLT3 fusion proteins In addition to internal tandem duplications and activating point mutations, FLT3 is also subject at low frequency to translocations that generate fusion proteins. These fusion proteins occur in some chronic myeloid leukemias as well as myeloid neoplasms with eosinophilia, and generate constitutively active proteins by virtue of fusing a N-terminal partner encoding a dimerization domain with the intracellular region of FLT3 (reviewed in Reiter and Gotlib, 2017; Kazi and Roonstrand, 2019). To date, 6 fusion partner genes of FLT3 have been identified: ETV6, TRIP11, MYO18A, SPTBN1, GOLGB1 and ZMYM2 (Balwin et al, 2007; Vu et al, 2006; Walz et al, 2011; Falchi et al, 2014; Chung et al, 2017; Troadec et al, 2017; Grand et al, 2007; Jawhar et al, 2017; Zhang et al, 2018).