MyBioSource.com's Prostate Specific Antigen (PSA) is a Mouse monoclonal antibody. The Prostate Specific Antigen (PSA) Antibody was generated using KLK3 as the antigen. It reacts with Human. This antibody has been shown to work in applications such as: Flow Cytometry, Immunofluorescence, Immunohistochemistry, and Immunohistochemistry - fixed.