Used in immunological research to detect and quantify Chlamydia protease-like activity in biological samples. Helps study Chlamydia trachomatis infections by measuring CPAF, a key virulence factor secreted by the bacteria during active infection. Widely applied in clinical and microbiology labs to assess bacterial pathogenicity, monitor infection progression, and evaluate efficacy of antimicrobial treatments. Supports research into host-pathogen interactions and development of targeted therapies.