| Code | CSB-AP005141HU |
| Abbreviation | Recombinant Human TNFRSF9 protein, partial (Active) |
| MSDS | |
| Size | $116 |
| Order now | |
| Image | |
| Have Questions? | Leave a Message or Start an on-line Chat |
TNFRSF9 (4-1BB) is a costimulatory immune checkpoint receptor whose engagement on T cells amplifies anti-tumor immunity, making it a high-priority target in immuno-oncology drug development. This recombinant human 4-1BB extracellular domain (aa 24–186), expressed in mammalian cells to preserve native glycosylation and disulfide-mediated folding, demonstrates confirmed binding to an anti-CD137 mAb-Fc with a KD of 25.5 nM by BLI—validating its conformational integrity for receptor-ligand interaction assays, therapeutic antibody epitope mapping, and competitive blocking antibody screening. The C-terminal His tag enables oriented loading on biosensor tips, supporting direct affinity characterization by BLI or SPR and use as a positive control in binding assays. With purity exceeding 95% by SDS-PAGE and endotoxin levels below 1.0 EU/μg, this protein satisfies the quality criteria typical for immune checkpoint research and small-molecule or biologic inhibitor screening campaigns.
There are currently no reviews for this product.