ZNF740 and precursor B-cell acute lymphoblastic leukemia: Interestingly, the fusion genes MRPL13::ZNF740 (n = 4), DHRSX duplication (n = 4), CYR5A::DIPK1C (n = 4) and CXorf21::MRPS16A (n = 3) were dominant in RAS signaling pathway-mutated B-ALL (Fig. 6K).