Anti-FMO3 antibodies are used in the immunodetection of the protein flavin containing dimethylaniline monoxygenase 3. In humans, the canonical protein has a reported length of 532 amino acid residues and a mass of 60 kDa. Its subcellular localization is in the ER. It is notably expressed in the liver. A member of the FMO protein family, FMO3 is known to be an important hepatic enzyme that catalyzes the oxygenation of a wide variety of nitrogen- and sulfur-containing compounds including drugs as well as dietary compounds. The FMO3 gene has been associated with the disease, Trimethylaminuria. Synonyms for this target antigen include TMAU, dJ127D3.1, flavin-containing monooxygenase 3, FMO form 2, dimethylaniline monooxygenase [N-oxide-forming] 3, and FMOII. FMO3 gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. A number of FMO3 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.