Used in biomedical research to quantify levels of MAPK1 protein in cell lysates, tissue extracts, or biological fluids. Enables researchers to study activation and signaling dynamics of the MAPK pathway, which plays a key role in cell proliferation, differentiation, and stress responses. Commonly applied in cancer research, drug development, and inflammation studies to assess how experimental treatments affect MAPK1 expression and phosphorylation status. Provides a reliable, high-throughput method for monitoring intracellular signaling changes under various physiological or pathological conditions.