Used in immunological research to study the role of STAB1 (Stabilin-1) in immune regulation and clearance of cellular debris. The His tag allows for easy purification and detection in protein expression systems. Commonly applied in ELISA, Western blotting, and protein-protein interaction studies to investigate macrophage function and scavenger receptor activity. Also utilized in the development of therapeutic targets for inflammatory diseases and cancer immunotherapy due to its involvement in immune tolerance and tissue homeostasis.