KAT2B and Familial prostate cancer: Chromatin immunoprecipitation assays confirmed that the nuclear receptors RARα (retinoic acid receptor α) and RXRα (retinoid X receptor α) and the lysine acetyl transferase acetyl transferase P300/CBP-associated factor (PCAF) were present at the promoter under conditions of AGAP2 expression in prostate cancer cells.