| Product Name | Anti-CTLA4 Antibody [rCTLA4/7219] |
|---|---|
| Description | Recombinant mouse monoclonal [rCTLA4/7219] antibody to CTLA4. |
| Host | Mouse |
| Clonality | Monoclonal |
| Clone | rCTLA4/7219 |
| Conjugate | Unconjugated |
| Immunogen | Recombinant fragment of human CTLA4. The exact sequence is proprietary. |
| Isotype | IgG1 |
| Molecular Weight | 30-43 kDa |
| Target | CTLA4 |
| Specificity | Cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) is a member of the CD28 superfamily and is a negative regulator of T cell-mediated immune responses. CTLA-4 expression is induced on the surface of T cells after CD28 binding and activation, and is constitutively expressed on T-regulatory cells, acting as an immune checkpoint inhibitor, downregulating T cell activity. CTLA-4 primarily inactivates T-cell activity by competing with the CD28 costimulatory molecule. CD28 and CTLA-4 share the identical ligands of CD80 and CD86 on antigenpresenting cells; and thus CTLA-4 competes with CD28 function in T-cell survival, proliferation, and recruitment. In particular, CTLA-4 down-modulates CD4+ helper T-cell activity and enhances Treg immunosuppressive functions. CTLA-4 has been shown to play a role in human diseases. CTLA-4 acts as a physiological brake on the activated immune system in order to maintain immune homeostasis. Several suppressive mechanisms for T-cell functions have been attributed to CTLA-4. |
| Reactivity | Human |
| Applications | IHC-P |
| Working Dilutions | IHC: 1-2 µg/ml |
| Form | Liquid |
| Diluent Buffer | Supplied in 10mM Phosphate Buffered Saline with 0.05% BSA and 0.05% Sodium Azide. |
| Concentration | 200 µg/ml |
| Storage | Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles. |
| Supplier | Antibodies.com |
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