Anti-MTARC2 antibodies are used in the immunodetection of the protein mitochondrial amidoxime reducing component 2. In humans, the canonical protein has a reported length of 335 amino acid residues and a mass of 38 kDa. Its subcellular localization is in the mitochondria and membrane. Up to 2 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the kidney and liver. MTARC2 is known to catalyze the reduction of N-oxygenated molecules, acting as a counterpart of cytochrome P450 and flavin-containing monooxygenases in metabolic cycles. Post-translational modifications have been described, including ubiquitination. Synonyms for this target antigen include MOSC2, MOCO sulphurase C-terminal domain containing 2, MOSC domain-containing protein 2, mitochondrial, moco sulfurase C-terminal domain-containing protein 2, and MARC2. MTARC2 gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species.