As the important suppressor of P53, iASPP is found to be overexpressed in leukemia, and functions as oncogene that inhibited apoptosis of leukemia cells. Sertad1 is identified as one of the proteins that can bind with iASPP in our previous study by two-hybrid screen. | Sertad1 antagonizes iASPP function by hindering its entrance into nuclei to interact with P53 in leukemic cells