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Recombinant Human PDL1/CD274 Protein (His tag)
SKU: PDMH100156-100
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Recombinant Human PDL1/CD274 Protein (His tag)
| SKU # | PDMH100156 |
| Expression Host | HEK293 Cells |
Description
| Synonyms | B7 Homolog 1, B7-H1, B7H1, CD274, PD-L1, PDCD1 Ligand 1, PDCD1L1, PDCD1LG1, PDL1, Programmed Cell Death 1 Ligand 1, Programmed Death Ligand 1 |
| Species | Human |
| Expression Host | HEK293 Cells |
| Sequence | Met1-Thr239 |
| Accession | Q9NZQ7 |
| Calculated Molecular Weight | 26.2 kDa |
| Observed Molecular Weight | 36 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 95% as determined by reducing SDS-PAGE. |
| Endotoxin | Please contact us for more information. |
| 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 | It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis. |
Background
CD274, also known as B7-H1 or programmed death ligand 1 (PD-L1), is a 40 kD type I transmembrane protein and a member of the B7 family within the immunoglobulin receptor superfamily. Programmed death-1 ligand-1 (PD-L1, CD274, B7-H1) has been identified as the ligand for the immunoinhibitory receptor programmed death-1(PD1/PDCD1) and has been demonstrated to play a role in the regulation of immune responses and peripheral tolerance. By binding to PD1 on activated T-cells and B-cells, PD-L1 may inhibit ongoing T-cell responses by inducing apoptosis and arresting cell-cycle progression. Accordingly, it leads to growth of immunogenic tumor growth by increasing apoptosis of antigen specific T cells and may contribute to immune evasion by cancers. PD-L1 thus is regarded as promising therapeutic target for human autoimmune disease and malignant cancers.