Anti-ASNS antibodies are used in the immunodetection of the protein asparagine synthetase (glutamine-hydrolyzing). In humans, the canonical protein has a reported length of 561 amino acid residues and a mass of 64.4 kDa. Up to 3 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the cerebellum and pancreas. ASNS is known to be involved with carbohydrate metabolism and homeostasis and the regulation of apoptosis. The ASNS gene has been associated with the disease, Asparagine synthetase deficiency. Synonyms for this target antigen include TS11, asparagine synthetase [glutamine-hydrolyzing], TS11 cell cycle control protein, glutamine-dependent asparagine synthetase, and ASNSD. ASNS gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.