Used in biomedical research to detect and quantify furin, a proprotein convertase enzyme involved in processing various precursor proteins in cells. The kit enables researchers to measure furin levels in cell lysates, serum, or plasma, supporting studies on infectious diseases, cancer, metabolic disorders, and viral entry mechanisms—such as in influenza, HIV, and SARS-CoV-2, where furin-mediated cleavage plays a critical role. It is widely applied in drug development and molecular biology to assess the impact of therapeutic agents on furin expression and activity.