Used in biomedical research to detect and quantify phosphorylated extracellular signal-regulated kinase (pERK) in rat samples. This kit enables researchers to study activation of the ERK signaling pathway, which plays a key role in cell proliferation, differentiation, and survival. Commonly applied in neuroscience, cancer research, and drug development to assess cellular responses to growth factors, hormones, or therapeutic agents. The assay provides a reliable and sensitive method for measuring pERK levels in tissue lysates, cell cultures, or biological fluids, supporting investigation into disease mechanisms and treatment effects in rat models.