Used in immunoassays and protein detection workflows to isolate or detect CDH17-expressing cells through streptavidin-biotin binding. The biotin tag allows for strong, specific interaction with streptavidin-conjugated beads, plates, or labels, enabling applications in flow cytometry, ELISA, and immunoprecipitation. Commonly applied in cancer research, especially gastrointestinal tumor studies, where CDH17 serves as a biomarker. The Fc tag supports dimerization and simplifies purification via protein A/G affinity columns. Also used in binding affinity studies and receptor-ligand interaction analyses.