HOXD13 and leukemia: We further validated Meis1 binding to the mouse Fli1 locus via ChIP-seq in two independent leukemia models, derived from lineage depleted bone marrow cells retrovirally transduced with NUP98-HOXD13/Meis1 (ND13/Meis1) and NUP98-HOXA10 homeodomain/Meis1 (NA10HD/Meis1).