PAX5 and leukemia: Recent large scale analyses of the common integration sites of two BCL2 transgenic strains infected with Moloney MuLV (MoMuLV) shows a statistically significant bias toward verified drivers of human B lymphoma and leukemia (Pou2f2, Pax5, Ikzf3, Ebf1) in addition to dozens of other candidate loci (29).