Used in biomedical research to detect and quantify extracellular signal-regulating kinase (ERK) protein levels in rat samples. This kit enables researchers to study ERK activation in signaling pathways related to cell growth, differentiation, and apoptosis. Commonly applied in neuroscience, cancer research, and toxicology studies to assess cellular responses to drugs, growth factors, or disease conditions. Provides a reliable and sensitive method for measuring phosphorylated and total ERK in tissue lysates and cell extracts.