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Recombinant Human 4-1BBL/TNFSF9 Protein (His Tag)(Active)
SKU: PKSH032023-100
Recombinant Human 4-1BBL/TNFSF9 Protein (His Tag)(Active)
| SKU # | PKSH032023 |
| Expression Host | E.coli |
Description
| Synonyms | 4-1BB ligand, 4-1BBL, TNFSF9, Tumor necrosis factor ligand superfamily member 9 |
| Species | Human |
| Expression Host | E.coli |
| Sequence | Arg71-Asp 140 |
| Accession | P41273 |
| Calculated Molecular Weight | 20.4 kDa |
| Observed Molecular Weight | 20 kDa |
| Tag | C-His |
| Bio-activity | Measure by its ability to induce IL-8 secretion in human PBMCs. The ED50 for this effect is 1-5 ng/mL. |
Properties
| Purity | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 0.1 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from sterile PBS, pH 7.4. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
Tumor necrosis factor ligand superfamily member 9(4-1BBL) is single-pass type II membrane protein which is a member of the the tumor necrosis factor family. 4-1BBL is a 254 amino acids cytokine that is expressed in brain; placenta; lung; skeletal muscle and kidney. TNFSF9 has been shown to reactivate anergic T lymphocytes in addition to promoting T lymphocyte proliferation. This cytokine may have a role in activation-induced cell death (AICD) and cognate interactions between T-cells and B-cells/macrophages. It has also been shown to be required for the optimal CD8 responses in CD8 T cells; and is thought to be involved in T cell-tumor cell interaction.