Arginine Vasopressin Receptor 1A (AVPR1A)

Arginine vasopressin receptor 1A (officially called AVPR1A) is one of the three major receptor types for arginine vasopressin (AVPR1B and AVPR2 being the others), and is present throughout the brain, as well as in the periphery in the liver, kidney, and vasculature.

Human AVPR1A cDNA is 1472 bp long and encodes a 418 amino-acid long polypeptide which shares 72%, 36%, 37%, and 45% sequence identity with rat Avpr1a, human AVPR2, rat Avpr2, and human oxytocin receptor (OXTR). AVPR1A is a G-protein coupled receptor (GPCR) with 7 transmembrane domains that couples to Gaq/11 GTP binding proteins, which along with Gbl, activate phospholipase C activity.