Overview
| Product name | Recombinant Human TNFRSF9/4-1BB/CD137 Protein |
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| Catalog No. | RP01698 |
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| Description | Recombinant Human Leukemia inhibitory factor/LIF Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Leu24-Gln186) of human TNFRSF9/4-1BB/CD137 (Accession #NP_002300.1) fused with a 6×His tag at the C-terminus. |
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| Bio-Activity | Measured by its binding ability in a functional ELISA.Immobilized Human TNFRSF9 (Catalog: RP01698) at 2 μg/mL (100 μL/well) can bind Human TNFSF9 (Catalog: RP00060) with a linear range of 1-4.4 ng/mL.
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| Purity | > 97% by SDS-PAGE. |
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| Endotoxin | < 0.1EU/μg |
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| Formulation | Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. |
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| Species | Human |
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| Calculated MW | 18.12 kDa |
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Background
CD137 (also known as 4-1BB) is a surface co-stimulatory glycoprotein originally described as present on activated T lymphocytes, which belongs to the tumor necrosis factor (TNF) receptor superfamily. It is expressed mainly on activated CD4+ and CD8+ T cells, and binds to a high-affinity ligand (4-1BBL) expressed on several antigen-presenting cells such as macrophages and activated B cells. Upon ligand binding, 4-1BB is associated with the tumor necrosis factor receptor–associated factors (TRAFs), the adaptor protein which mediates downstream signaling events including the activation of NF-kappaB and cytokine production. 4-1BB signaling either by binding to 4-1BBL or by antibody ligation delivers signals for T-cell activation and growth, as well as monocyte proliferation and B-cell survival, and plays an important role in the amplification of T cell-mediated immune responses.
Product information
| Synonym | ILA; 4-1BB; CD137; CDw137; TNFRSF9 |
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| Expression Host | HEK293 cells |
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| Tag | C-6His |
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| Swiss-Prot | |
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| Gene ID | |
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Usage guide
| Storage | Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week. |
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| Reconstitution | Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles. |
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* For research use only. Not for therapeutic or diagnostic purposes.
