Anti-GPBAR1 antibodies are used in the immunodetection of the protein G protein-coupled bile acid receptor 1. In humans, the canonical protein has a reported length of 330 amino acid residues and a mass of 35.2 kDa. Its subcellular localization is in the cell membrane. It is ubiquitously expressed across many tissue types. A member of the G-protein coupled receptor 1 protein family, GPBAR1 is a known receptor for bile acid. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include G-protein coupled receptor GPCR19, membrane bile acid receptor, membrane-type receptor for bile acids, and G-protein coupled bile acid receptor BG37. GPBAR1 gene orthologs have been reported in the mouse, rat, bovine, frog and chimpanzee species. A number of GPBAR1 antibodies have been mentioned in research publications and have associated citations. Immunohistochemistry is a widely used application for these antibodies. Western Blot and Immunofluorescence are also common applications.