(C) Western blots of MYB and CREB in MV411 AML cells transduced with MSCV retroviruses encoding GFP control (MV411-MSCV) or BCL2 (MV411-BCL2), treated with 20 μM CRYBMIM or PBS control with or without 10 μM of MG132 for 1 or 4 hr, as indicated. This evidence concerns the gene MYB and acute myeloid leukemia.