Used in research and development of targeted cancer therapies, particularly in studies involving signal transduction pathways. Plays a key role in assays designed to measure EGFR kinase activity, helping evaluate the effectiveness of kinase inhibitors. Commonly applied in high-throughput screening for anticancer drug discovery. Also utilized in phosphorylation studies to understand cell growth, differentiation, and oncogenesis mechanisms. Supports diagnostic tool development for cancers with EGFR pathway dysregulation, such as non-small cell lung cancer.