Anti-flavin containing dimethylaniline monoxygenase 1 antibodies are used for the immunodetection of the protein encoded by the FMO1 gene. In humans, the canonical protein has a reported length of 532 amino acid residues and a mass of 60.3 kDa. Its subcellular localization is in the ER. Alternative splicing is reported to yield 2 different isoforms for this protein. It is notably expressed in fetal and adult liver. A member of the FMO protein family, it is known to be involved with metabolic processes. Other names for this target antigen include Flavin-containing monooxygenase 1 (fetal liver), dimethylaniline monooxygenase [N-oxide-forming] 1, dimethylaniline oxidase 1, and flavin-containing monooxygenase 1. Gene orthologs have been identified in the mouse, rat, bovine and chimpanzee species.