Integration of all IP and ChIP-MS datasets identified 17 (1433E, AP2A1, AP2M1, CAPR1, EIFCL, ELAV1, PRP6, RL10, RL29, SPTB2, TBB5, TCPZ, U2AF1, FUBP3, FXR1, RAB7A, RRBP1) of the 51 proteins as shared between the BMI1 proteome and chromatome in GBM, none of which were found in the mNPC and only one (U2AF1) in the mESC Ring1B datasets (Supplementary Figure S2E). The gene discussed is RRBP1; the disease is glioblastoma.