Used in biomedical research to detect and quantify phosphorylated c-Jun amino terminal kinase (p-JNK) in cell or tissue samples. This kit helps study cellular stress responses, apoptosis, inflammation, and signaling pathways involved in diseases such as cancer, neurodegenerative disorders, and diabetes. It is commonly used in Western blotting, cell signaling research, and drug development to evaluate the activation status of JNK in response to external stimuli or therapeutic agents.