Active Recombinant Cynomolgus Monkey CTLA4 protein, Fc-tagged
Cat.No. : | CTLA4-192C |
Product Overview : | Recombinant Cynomolgus Monkey CTLA4(Ala37-Asp161) fused with Fc region of Human IgG1 at C-terminal was expressed in HEK293. |
- Specification
- Gene Information
- Related Products
Description : | CTLA-4 (cytotoxic T-lymphocyte-4, designated CD152), is a type I transmembrane T cell inhibitory molecule that is a member of the Ig superfamily. Cyno CTLA-4 has a 98% homology to human CTLA-4. Human or mouse CTLA-4 cDNA encodes 223 amino acids (aa) including a 35 aa signal sequence, a 126 aa extracellular domain (ECD) with one Ig-like V-type domain, a 21 aa transmembrane (TM) sequence, and a 41 aa cytoplasmic sequence. It is found as a covalent homodimer of 41-43 kDa. Within the ECD, human CTLA-4 shares 98%, 68%, 71% and 83-86% aa sequence identity with cynomolgus, mouse, rat and porcine/bovine/rabbit/feline/canine CTLA-4, respectively. A 174 aa form that lacks TM and cytoplasmic sequences (sCTLA-4) is possibly secreted. In mouse, an isoform lacking the Ig-like domain has ligand-independent inhibitory activity and is termed liCTLA-4. CD28, which is structurally related to CTLA-4, is constitutively expressed on naïve T cells and promotes T cell activation when engaged by B7-2 on antigen-presenting cells (APC) within the immunological synapse (IS). In contrast, CTLA-4 is recruited from intracellular vesicles to the IS beginning 1-2 days after T cell activation. It forms a linear lattice with B7-1 on APC, inducing negative regulatory signals and ending T cell activation. Abatacept, a therapeutic human CTLA-4-Ig fusion protein (trade name Orencia), competes with CD28 for B7-1 and B7-2 binding and has been used to antagonize T cell activation in autoimmune conditions and to enhance transplant survival. Mice deleted for CTLA-4 show no abnormalities until after birth, but then develop lethal autoimmune reactions due to continued T cell activation and poor control by regulatory T cells, which constitutively express CTLA-4 in wild-type mice and humans. |
Source : | HEK293 |
Species : | Cynomolgus Monkey |
Tag : | Fc |
Predicted N Terminal : | Ala37 |
Form : | Lyophilized from a 0.2 μm filtered solution in PBS. |
Bio-activity : | Measured by its binding ability in a functional ELISA. When Recombinant Cynomolgus Monkey CTLA‑4 Fc Chimera is coated at 0.5 µg/mL, 100 μL/well, Recombinant Human B7‑1/CD80 Fc Chimera binds with an ED50 of 5-30 ng/mL. |
Molecular Mass : | Predicted Molecular Mass: 40 kDa SDS-PAGE: 46-57 kDa, reducing conditions |
Endotoxin : | <0.1 EU per 1 μg of the protein by the LAL method. |
Purity : | >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining. |
Storage : | Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 centigrade as supplied. 1 month, 2 to 8 centigrade under sterile conditions after reconstitution. 3 months, -20 to -70 centigrade under sterile conditions after reconstitution. |
Reconstitution : | Reconstitute at 1 mg/mL in PBS. |
Gene Name : | CTLA4 cytotoxic T-lymphocyte associated protein 4 [ Macaca fascicularis ] |
Official Symbol : | CTLA4 |
Synonyms : | CTLA4; cytotoxic T-lymphocyte associated protein 4 |
Gene ID : | 102115124 |
Products Types
◆ Recombinant Protein | ||
CTLA4-654M | Recombinant Mouse CTLA4 Protein, Fc-tagged | +Inquiry |
CTLA4-653M | Recombinant Mouse CTLA4 Protein | +Inquiry |
CTLA4-1106H | Recombinant Human CTLA4 Protein (Met1-Phe162), HlgG1 Fc-tagged, Biotinylated | +Inquiry |
CTLA4-024H | Recombinant Human CTLA4 Protein, C-His-tagged | +Inquiry |
CTLA4-902R | Recombinant Rhesus Macaque CTLA4 Protein, His (Fc)-Avi-tagged | +Inquiry |
◆ Lysates | ||
CTLA4-2179MCL | Recombinant Mouse CTLA4 cell lysate | +Inquiry |
CTLA4-2526HCL | Recombinant Human CTLA4 cell lysate | +Inquiry |
◆ Assay kits | ||
Kit-1713 | CTLA4[Biotinylated]:B7-2 Inhibitor Screening Assay Kit | +Inquiry |
Kit-1712 | CTLA4:B7-1[Biotinylated] Inhibitor Screening Assay Kit | +Inquiry |
Related Gene
For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.
Inquiry
0
Inquiry Basket