Anti-Alpha-1-Antichymotrypsin antibodies enable researchers to detect and measure the Alpha-1-Antichymotrypsin antigen in biological samples. This target is a reported synonym of the SERPINA3 gene, which encodes serpin family A member 3. This protein is known to function in inflammatory response pathways and the metabolism of lipids, among other biological roles. The human version of Alpha-1-Antichymotrypsin has a canonical amino acid length of 423 residues and a protein mass of 47.7 kilodaltons, although 3 isoforms have been identified. It is reported to be a secreted protein that is notably expressed in many tissues, such as the cerebellum and cervix. Other names for this target antigen include AACT, ACT, and GIG24. Western Blot is a widely used application for the Alpha-1-Antichymotrypsin antibodies listed below. In addition, Immunohistochemistry is also a common application.