Used in immunological research to study the function and regulation of the GUCY2C receptor in non-human primate models. Plays a key role in preclinical evaluation of vaccines and therapeutics targeting gastrointestinal diseases and cancers, particularly those involving the intestinal epithelium. The His tag enables easy detection and purification, making it valuable for protein expression and binding assays. Supports development of targeted drug delivery systems and immune response characterization in translational medicine.