Experiment design for the knockout screening strategy. (A) Expression of some of the candidate TFs, including Fli1, Nfatc1, Mzf1, Mxd3, Hes7, and Pcgf2, in the mouse hematopoietic system as determined in GEXC. (B) Expression analysis of some of the candidate genes in human bone marrow MEPs, EPs, and MkPs by real-time PCR. n = 3; error bar indicates SD.