The RPA-T4 monoclonal antibody reacts with the human CD4. The CD4 antigen is a 55 kDa cell surface type I membrane glycoprotein belonging to the immunoglobulin superfamily. CD4 acts as a co-receptor which in cooperation with the T cell receptor (TCR) interacts with class II MHC molecules displayed by antigen presenting cells (APC). CD4 is expressed by most thymocytes and helper T cells, a subset of NK-T cells and weakly by dendritic cells and macrophages. CD4 plays an important role in the development of T cells and is required for mature T cells to function optimally. The RPA-T4 antibody is reported to bind to the D1 domain of CD4 and does not block the binding of the OKT-4 antibody. Additionally, RPA-T4 has been shown to block the binding of HIV gp120 protein to CD4 and inhibit CD4 T cell activation in vitro.
| Isotype | Mouse IgG1 |
| Recomended Isotype Control(s) | InVivoMAb mouse IgG1 isotype control, unknown specificity |
| Recommended InVivoPure Dilution Buffer | InVivoPure pH 7.0 Dilution Buffer |
| Immunogen | Not available or unknown |
| Reported Applications |
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| Endotoxin |
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| Purity |
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| Formulation |
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| Sterility | 0.2 μM filtered |
| Production | Purified from tissue culture supernatant in an animal free facility |
| Purification | Protein G |
| Storage | Undiluted at 4°C in the dark |
