Anti-OC90 antibodies are used in the immunodetection of the protein otoconin 90. In humans, the canonical protein has a reported length of 477 amino acid residues and a mass of 51.7 kDa. It has been described to be a secreted protein. Up to 2 different isoforms have been reported for this protein. A member of the Phospholipase A2 protein family, Oc90 is reported to be a major protein of the otoconia, a calcium carbonate structure in the saccule and utricle of the ear. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include PLA2L and phospholipase A2 homolog. OC90 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Some Oc90 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Flow Cytometry, Immunocytochemistry, and Immunofluorescence are also common applications.