Anti-OTOP3 antibodies are used in the immunodetection of the protein otopetrin 3. In humans, the canonical protein has a reported length of 596 amino acid residues and a mass of 66.3 kDa. Its subcellular localization is in the cell membrane. A member of the Otopetrin protein family, OTOP3 is reported to be a proton-selective channel that specifically transports protons into cells. Synonyms for this target antigen include proton channel OTOP3. OTOP3 gene orthologs have been reported in the mouse, rat, bovine, chimpanzee and chicken species. Western Blot is a widely used application for the OTOP3 antibodies listed below. In addition, ELISA is also a common application.