Anti-Prostate Specific Antigen antibodies enable researchers to detect and measure the Prostate Specific Antigen antigen in biological samples. This target is a reported synonym of the KLK3 gene, which encodes kallikrein related peptidase 3. This protein is known to function in the regulation of angiogenesis and proteolysis, among other biological roles. The human version of Prostate Specific Antigen has a canonical amino acid length of 261 residues and a protein mass of 28.7 kilodaltons, although 5 isoforms have been identified. It is reported to be a secreted protein that is notably expressed in the prostate. Other names for this target antigen include APS, KLK2A1, and PSA. ELISA is a widely used application for the Prostate Specific Antigen antibodies listed below. In addition, Western Blot is also a common application.