KAT2B (Lysine Acetyltransferase 2B): KAT2B, also known as PCAF, encodes an enzyme involved in histone acetylation, a process essential for regulating gene expression. It contributes to DNA repair, cell cycle control, and apoptosis, and plays a key role in transcription regulation and chromatin remodelling. KAT2B has been linked to cancer development and certain developmental disorders.