PPP1R13B and acute myeloid leukemia: Comparison of expression levels in AML vs. bone marrow aspirates of 12 healthy donors demonstrated significantly attenuated relative median expression levels of PPP1R13B in the AML cohort (0.33 (PPP1R13BAML) vs. 0.95 (PPP1R13Bdonor), p < 0.0001), Fig. 1A.