| Code | CSB-MP004940HUd7 |
| Abbreviation | Recombinant Human CD47 protein, partial (Active) |
| MSDS | |
| Size | $114 |
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CD47 functions as a "don't eat me" signal that inhibits phagocytosis by binding SIRPα on macrophages, making it a critical target in cancer immunotherapy and immune checkpoint research. This mammalian-expressed extracellular domain (aa 19–139) demonstrates quantified binding to human SIRPα with an EC50 of 98.73–112.7 ng/mL and to anti-CD47 antibody with an EC50 of 1.343–1.561 ng/mL, providing validated performance for ligand-receptor interaction assays by ELISA, SPR, or BLI. The mammalian expression system supports native glycosylation and disulfide bond formation essential for conformational integrity in competitive inhibition studies, blocking antibody screening, and therapeutic antibody epitope mapping. With purity exceeding 95% and endotoxin below 1.0 EU/μg, this protein meets the quality thresholds commonly required for drug discovery campaigns targeting the CD47-SIRPα axis and serves as a reliable positive control in affinity characterization experiments.
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