KAT2B and Burkitt lymphoma: We also examined expression of GCN5 (KAT2A) and PCAF (KAT2B) in lymphoma cell lines in the Cancer Cell Line Encyclopedia (CCLE) database and again observed that GCN5 (KAT2A) mRNA levels are elevated in many different cancer cell lines including human Burkitt lymphoma (BL) cells (Figure 1C).