Used in biomedical research to quantify levels of X-linked Inhibitor of Apoptosis Protein (XIAP) in human samples. Helps study apoptosis regulation, particularly in cancer, neurodegenerative diseases, and immune disorders. Enables researchers to assess XIAP expression in cell lysates or tissue homogenates, supporting investigations into disease mechanisms and therapeutic responses. Commonly applied in clinical labs and pharmaceutical research for biomarker analysis and drug development.