Anti-flavin containing dimethylaniline monoxygenase 2 antibodies are used for the immunodetection of the protein encoded by the FMO2 gene. In humans, the canonical protein has a reported length of 535 amino acid residues and a mass of 60.9 kDa. Its subcellular localization is in the ER. It is notably expressed in the lung. A member of the FMO protein family, it is known to catalyze the oxidative metabolism of numerous xenobiotics, including mainly therapeutic drugs and insecticides that contain a soft nucleophile, most commonly nitrogen and sulfur and participates to their bioactivation. Other names for this target antigen include flavin-containing monooxygenase 2, FMO, pulmonary, dimethylaniline monooxygenase [N-oxide-forming] 2, dimethylaniline oxidase 2, and FMO1B1. Gene orthologs have been identified in the mouse, rat, bovine and chimpanzee species.