Anti-PLAU antibodies are used in the immunodetection of the protein plasminogen activator, urokinase. In humans, the canonical protein has a reported length of 431 amino acid residues and a mass of 48.5 kDa. It has been described to be a secreted protein. Up to 2 different isoforms have been reported for this protein. It is reported to be expressed in the prostate gland and prostate cancers. A member of the Peptidase S1 protein family, PLAU is known to be involved with chemotaxis and the regulation of cell migration. Post-translational modifications have been described, including glycosylation, protein cleavage and phosphorylation. Synonyms for this target antigen include BDPLT5, QPD, UPA, URK, u-PA, urokinase-type plasminogen activator, U-plasminogen activator, and ATF. PLAU gene orthologs have been reported in the mouse, rat, bovine, chimpanzee and chicken species. Over 90 citations in the literature describe the use of Plau antibodies in research. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.