Description
| Product Name: | Human CTLA-4/CD152 Recombinant Protein (His tag) |
| Product Code: | RPES6080 |
| Size: | 20µg |
| Species: | Human |
| Expression Host: | HEK293 Cells |
| Synonyms: | Cytotoxic T-lymphocyte protein 4, Cytotoxic T-lymphocyte-associated antigen 4, CTLA4, CD152, Cytotoxic T-Lymphocyte-Associated Protein 4 |
| Mol Mass: | 17.71 kDa |
| AP Mol Mass: | 15 kDa |
| Tag: | C-His |
| Purity: | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin Level: | Please contact us for more information. |
| Bio Activity: | Testing in progress |
| Sequence: | Met1-Phe162 |
| Accession: | P16410 |
| Storage: | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C 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% Tween80 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: | Cytotoxic T-lymphocyte protein 4; is a single-pass type I membrane protein. It is widely expressed with highest levels in lymphoid tissues. CD28 and CTLA-4; together with their ligands; B7-1 and B7-2; constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CD28 and CTLA-4 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. CTLA4 transmits an inhibitory signal to T cells; whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found in regulatory T Cells and may play an important role in their functions. Tcell activation through the Tcell receptor and CD28 leads to increased expression of CTLA4. |
