Anti-BRS3 antibodies are used in the immunodetection of the protein bombesin receptor subtype 3. In humans, the canonical protein has a reported length of 399 amino acid residues and a mass of 44.4 kDa. Its subcellular localization is in the cell membrane. A member of the G-protein coupled receptor 1 protein family, BRS3 is known to be involved with GPCR signaling pathways and carbohydrate metabolism and homeostasis. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include BB3R, BBR3, G-protein coupled receptor, bombesin like receptor 3, and BB3. BRS3 gene orthologs have been reported in the mouse, rat, frog, chimpanzee and chicken species. Some BRS3 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.