Anti-ARG2 antibodies are used in the immunodetection of the protein arginase 2. In humans, the canonical protein has a reported length of 354 amino acid residues and a mass of 38.6 kDa. Its subcellular localization is in the mitochondria. It is notably expressed in many tissues, such as the kidney and parathyroid gland. A member of the Arginase protein family, ARG2 is believed to play a role in the regulation of extra-urea cycle arginine metabolism and also in down-regulation of nitric oxide synthesis. Synonyms for this target antigen include L-arginine amidinohydrolase, L-arginine ureahydrolase, arginase II, arginase, type II, kidney arginase, and arginase-2, mitochondrial. ARG2 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 70 citations in the literature describe the use of ARG2 antibodies in research. Western Blot is a widely used application for these antibodies. ELISA, Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are also common applications.