Used for the detection and quantification of lysine (LYS) activity in biological samples such as serum, plasma, and cell culture supernatants. Commonly applied in metabolic research and nutritional studies involving amino acid metabolism. Helps assess protein synthesis and degradation processes in animal and human physiology. Widely used in veterinary and biomedical research to monitor lysine levels related to growth, immune function, and metabolic disorders. Provides a reliable, high-throughput method for screening lysine activity in experimental models and clinical diagnostics.