Used in biomedical research to detect and quantify phosphorylated myosin light chain kinase (P-MLCK) in rat samples, this ELISA kit enables researchers to study cellular contraction mechanisms, particularly in smooth muscle and non-muscle cells. It is widely applied in investigations related to vascular function, airway hyperresponsiveness, and inflammatory diseases where P-MLCK plays a regulatory role in cytoskeletal dynamics and cell motility. The kit supports high-throughput analysis and provides a reliable tool for monitoring kinase activity changes in experimental models of disease or in response to pharmacological treatments.