The CD4 antigen is a single-chain transmembrane glycoprotein with a 59 kDa molecular weight. CD4 binds to a non-polymorphic region of MHC Class II molecules and is a co-receptor in MHC Class II restricted antigen-induced activation. CD4 is expressed on the T ‘helper’ lymphocytes. It is present on most thymocytes where it is frequently co-expressed with CD8. CD4 is also expressed on all monocytes, although with a lower density than on T lymphocytes. CD4+ T lymphocytes are active in inducing and helping the synthesis of immunoglobulins by B cells. CD4 is a receptor for the Human Immunodeficiency Virus type I (HIV-1) envelope protein gp120.
Технические характеристики
| Target Species | Human |
| Specificity | CD4 |
| Other Names | CD4, T4 antigen |
| Fluorochrome | UNLB |
| Regulatory Status | ASR |
| Size | 0.2 mg |
| Format | Freeze-dried |
| Clone | 13B8.2 |
| Isotype | IgG1 Mouse |
| Clone Description | 13B8.2 monoclonal antibody antagonizes HIV effects in vitro. 13B8.2 recognizes an epitope close to the amino-acid residues 88-89 within the CD4 molecule. 13B8.2 and BL4 recognize different epitopes. 13B8.2 and BL4 are not cross-blocking. |
| Cross Reactivity | Hamadyras Baboon, Olive Baboon |
