Used in biomedical research to measure activation levels of JNK, a key signaling protein involved in cellular responses to stress, inflammation, and apoptosis. Researchers apply this kit in studies related to neurodegenerative diseases, cancer, diabetes, and autoimmune disorders to evaluate JNK pathway activity in cell or tissue samples. The assay enables quantitative detection of phosphorylated JNK, helping assess the impact of drugs, toxins, or genetic modifications on this critical signaling cascade. Widely utilized in preclinical drug development and molecular biology labs for reliable, high-throughput analysis of JNK expression and activation status.