Anti-DAO antibodies are used in the immunodetection of the protein D-amino acid oxidase. In humans, the canonical protein has a reported length of 347 amino acid residues and a mass of 39.5 kDa. Its subcellular localization is in the peroxisomes. It is notably expressed in the liver, kidney, and cerebellum. A member of the DAMOX/DASOX protein family, DAO is reported to regulate the level of the neuromodulator D-serine in the brain. The DAO gene has been associated with the disease, Schizophrenia. Synonyms for this target antigen include DAMOX, OXDA, and DAAO. DAO gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of DAO antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.