ENSAL, or CAMP regulated phosphoprotein 19kDa, is a human gene encoded by ARPP19. It may also be known as: cAMP-regulated phosphoprotein 19; ARPP-19; endosulfine alpha-like; ARPP-16; ARPP16; cAMP-regulated phosphoprotein, 19kDa. The encoded protein has an amino acid length of 112 and a mass of 12.3 kDa. Other isoforms may exist. ENSAL is a member of the Endosulfine family. Homologs of this gene exist in other organisms, including: Frog.