GPBAR1 encodes the human gene, G protein-coupled bile acid receptor 1. It may also be known as: G-protein coupled bile acid receptor 1; G-protein coupled receptor GPCR19; hGPCR19; Membrane-type receptor for bile acids; M-BAR; hBG37; BG37; GPCR19; GPR131; TGR5. The encoded protein has an amino acid length of 330 and a mass of 35.2 kDa. GPBAR1 is a member of the G-protein coupled receptor 1 family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Frog.