Recombinant Mouse CTLA4 Protein (Fc Tag)(Active)
SKU: PKSM041002-50
Recombinant Mouse CTLA4 Protein (Fc Tag)(Active)
| SKU # | PKSM041002 |
| Expression Host | HEK293 Cells |
Description
| Synonyms | CD152, CTLA-4, Ctla4 , Cytotoxic T-lymphocyte protein 4, Cytotoxic T-lymphocyte-associated antigen 4 |
| Species | Mouse |
| Expression Host | HEK293 Cells |
| Sequence | Ala37-Asp161 |
| Accession | P09793 |
| Calculated Molecular Weight | 40.4 kDa |
| Observed Molecular Weight | 50-60 kDa |
| Tag | C-Fc |
| Bio-activity | Loaded Human B7-2-His on HIS1K Biosensor, can bind Mouse CTLA-4-Fc with an affinity constant of 5.65 nM as determined in BLI assay. |
Properties
| Purity | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 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 a 0.2 μm filtered solution of 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
Mouse Cytotoxic Tlymphocyte 4(CTLA-4,CD152), is a type I transmembrane T cell inhibitory molecule. Within the ECD, Mouse CTLA-4 shares 68% aa sequence identity with human. CTLA4 is similar to the T cell costimulatory protein CD28 since both of the molecules bind to CD80 and CD86 on antigen-presenting cells. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found inregulatory T cells and may play an important role in their functions. T cell activation through the T cell receptor and CD28 leads to increased expression of CTLA4. Genetic variations of CTLA4 have been associated with susceptibility to systemic lupus erythematosus(SLE), Gravesdisease(GRD), Celiac disease type3(CELIAC3) and Hepatitis B virus infection(HBVinfection).