AP2-B is an alias for the gene, Transcription factor AP-2 beta (activating enhancer binding protein 2 beta), in humans. Other names include: Transcription factor AP-2-beta; Activating enhancer-binding protein 2-beta; AP2-beta; AP-2B. The encoded protein has an amino acid length of 460 and a mass of 50.5 kDa. Other isoforms may exist. AP2-B is a member of the AP-2 family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.