| Code | CSB-AP004951HU |
| Abbreviation | Recombinant Human TNFRSF11B protein (Active) |
| MSDS | |
| Size | $78 |
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Osteoprotegerin (OPG/TNFRSF11B) functions as a soluble decoy receptor for both RANKL and TRAIL, positioning it at the intersection of bone remodeling and tumor cell survival pathways. This recombinant human OPG, spanning the full-length mature protein (aa 22–401) with a C-terminal 6xHis tag, demonstrates confirmed neutralizing activity with an ED50 of 10.6 ng/mL in inhibiting TRAIL-mediated cytotoxicity of L-929 cells—a potency level that supports use in competitive inhibition assays, blocking antibody screening, and ligand-binding interaction studies via SPR or BLI. Mammalian cell expression preserves the native disulfide bonding and glycosylation critical for proper folding of OPG's cysteine-rich domains, ensuring conformational integrity relevant to epitope mapping and small-molecule inhibitor screening in oncology drug discovery. Purity exceeding 95% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for cell-based functional assays and quantitative binding characterization.
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