To identify novel regulators of post-transcriptional and translation control in AML, we surveyed several genome-wide CRISPR screens and observed that several subunits in the RNA deadenylation CCR4-NOT complex i.e. CNOT1, CNOT2, and CNOT3, and CNOT10 were highly ranked among genes essential for survival of human40 and mouse41 leukemia cells (Fig. 1A and Supplementary Fig. 1A). This evidence concerns the gene CCR4 and acute myeloid leukemia.