Purity:>90%, by SDS-PAGE visualized with Coomassie® Blue Staining. Description： 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. In addition, CD137 and CD137L are expressed in different human primary tumor tissues, suggesting that they may influence the progression of tumors. Crosslinking of CD137 on activated T cells has shown promise in enhancing anti-tumor immune responses in murine models, and agonistic anti-CD137 antibodies are currently being tested in phase I clinical trials. Soluble forms of CD137 (sCD137) are generated by differential splicing. sCD137 can bind to CD137 ligand to antagonize the costimulatory activities of the membrane-bound CD137 and reduce T cell proliferation and IL-2 secretion.
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Recombinant Human 4-1BB/TNFRSF9 Protein
CAS number：unknown molecular formula：
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Specs
| Chinese alias | 重组人4-1BB/TNFRSF9蛋白 | 重组人 4-1BB/TNFRSF9 蛋白 | ||
| English alias | 4-1BB ligand receptor | 41BB | 4-1BB | CD137 antigen | CD137 | CD137MGC2172 | CDw137 | FLJ43501 | ILA | ILAhomolog of mouse 4-1BB | induced by lymphocyte activation (ILA) | interleukin-activated receptor, homolog of mouse Ly63 | receptor protein 4-1BB | T | ||
| CAS number | unknown | molecular formula | |
| molecular weight | - | Exact mass | 无动物源 |
| PSA | - | logp | - |
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