Used in research to detect and quantify microbial polyphosphate kinase (PPK) in environmental, industrial, or clinical samples. Helps study bacterial stress responses, energy metabolism, and biofilm formation. Commonly applied in microbiology and environmental science to assess microbial activity in wastewater treatment, where PPK plays a role in phosphorus removal. Also used in drug discovery to screen inhibitors targeting PPK in pathogenic bacteria, supporting development of novel antimicrobial therapies. Provides a reliable, high-throughput method for measuring PPK levels in lab cultures and complex microbial communities.