IFNA1 and acute myeloid leukemia: To investigate proteins known to be regulated by IFNα, we explored early (15 min) and late (48 h) effects on phosphorylation of signaling proteins involved in cell cycle progression and cell death pathways, as well as IFNα-regulated phosphoproteins in the AML cell line MOLM-13 by phospho-flow cytometry (antibody overview in Online Resource Table 3).