Anti-MC3R antibodies are used in the immunodetection of the protein melanocortin 3 receptor. In humans, the canonical protein has a reported length of 323 amino acid residues and a mass of 36 kDa. Its subcellular localization is in the cell membrane. A member of the G-protein coupled receptor 1 protein family, MC3R is a known receptor for MSH (alpha, beta and gamma) and ACTH. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include MC3, OB20, OQTL, melanocortin receptor 3, obesity quantitative trait locus, and BMIQ9. MC3R gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some MC3R antibodies may have been used in research and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.