| Host: |
HEK293 |
| Note: |
STRICTLY FOR FURTHER RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
| Short Description: |
Recombinant-Human CTLA4 (CD152)-protein was developed from hek293. For use in research applications. |
| Conjugation: |
Unconjugated |
| Formulation: |
Lyophilised from 0.2 Mu m filtered PBS pH 7.4. |
| Dilution Range: |
Spin the vial and reconstite in distilled water to a concentration not less than 0.1 mg/mL. This can then be diluted into other buffers. |
| Storage Instruction: |
Can be stored in working aliquots at 2°C-8°C C for one month, or at-20°C C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles. NA |
| Endotoxin: |
Endotoxin content was assayed using a LAL gel clot method. Endotoxin level was found to be less than 0.1 ng/µg (1EU/µg). NA |
| Immunoreactivity: |
The activity was tested by immobilized recombinant CTLA4 (10ug/ml) ability to bind recombinant human B7-1 in functional ELISA. The ED50 was calculated to be 10ng/ml. NA |
| Gene Symbol: |
CTLA4 |
| Gene ID: |
1493 |
| Uniprot ID: |
CTLA4_HUMAN |
| Immunogen Region: |
ECD |
| Immunogen: |
DNA sequence encoding extracellular domain of Human CTLA4 to a C-terminal polyHis tag was expressed in HEK cells. NA |
| Tissue Specificity | Widely expressed with highest levels in lymphoid tissues. Detected in activated T-cells where expression levels are 30- to 50-fold less than CD28, the stimulatory coreceptor, on the cell surface following activation. |
| Post Translational Modifications | N-glycosylation is important for dimerization. Phosphorylation at Tyr-201 prevents binding to the AP-2 adapter complex, blocks endocytosis, and leads to retention of CTLA4 on the cell surface. |
| Function | Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28. |
| Protein Name | Cytotoxic T-Lymphocyte Protein 4Cytotoxic T-Lymphocyte-Associated Antigen 4Ctla-4Cd Antigen Cd152 |
| Database Links | Reactome: R-HSA-389513Reactome: R-HSA-8877330 |
| Cellular Localisation | Cell MembraneSingle-Pass Type I Membrane ProteinExists Primarily An Intracellular Antigen Whose Surface Expression Is Tightly Regulated By Restricted Trafficking To The Cell Surface And Rapid Internalization |
| Alternative Protein Names | Cytotoxic T-Lymphocyte Protein 4 proteinCytotoxic T-Lymphocyte-Associated Antigen 4 proteinCtla-4 proteinCd Antigen Cd152 proteinCTLA4 proteinCD152 protein |
Information sourced from Uniprot.org
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance
