BCOR has several interacting regions in addition to BCL6, including AF9 (a region that interacts with AF9, the common mixed-lineage leukemia fusion partner), NSPC1 (a region that interacts with nervous system polycomb1), and Ankyrin (a region involved in protein–protein interaction) (Ghetu et al., 2008). The gene discussed is PCGF1; the disease is leukemia.