| Code | CSB-MP896537HU |
| Abbreviation | Recombinant Human TNFRSF18 protein, partial (Active) |
| MSDS | |
| Size | $116 |
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TNFRSF18 (GITR) plays a critical role in T-cell co-stimulation and immune regulation, making precise characterization of its interaction with GITRL essential for immunotherapy research. This recombinant human TNFRSF18 encompasses the extracellular ligand-binding domain (aa 26–162) produced in mammalian cells to preserve native glycosylation and disulfide-mediated folding, with a C-terminal hFc1 tag facilitating oriented capture in binding assays. Validated activity demonstrates an EC50 of 2.565–2.940 ng/ml for TNFSF18 binding by functional ELISA and a KD of 38.5 nM by LSPR, providing a suitable basis for receptor-ligand interaction studies, competitive blocking antibody screening, therapeutic antibody epitope mapping, and affinity characterization by SPR or BLI. Purity exceeding 90% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for use as a positive control in quantitative binding assays and small-molecule inhibitor screening campaigns.
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