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Description
The H129.19 antibody reacts with the CD4 (L3T4) differentiation antigen expressed on thymocytes, a subpopulation of mature T lymphocytes (i.e., MHC class II-restricted T cells, including most T helper cells), and a subset of NK-T cells of all mouse strains tested. CD4 has also been detected on pluirpotent hematopoietic stem cells, bone marrow myeloid precursors, intrathymic lymphoid precursors, and a subset of splenic dendritic cells. CD4 is expressed on the plasma membrane of mouse egg cells and is involved in adhesion of the egg to MHC class II-bearing sperm. CD4 is an antigen coreceptor on the T-cell surface which interacts with MHC class II molecules on antigen-presenting cells. It participates in T-cell activation through its association with the T-cell receptor complex and protein tyrosine lck. H129.19 mAb blocks binding of the anti-mouse CD4 mAbs Gk1.5 (Cat. No. 557307/553729) and RM4-5 (Cat. No. 553046/553047), but not RM4-4 (Cat. No. 553055) antibody. mAb H129.19 inhibits various responses of T helper cells to antigenic or mitogenic stimuli. This antibody is routinely tested by flow cytometric analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.
Specifications
| CD4 | |
| Monoclonal | |
| 62.5μg/mL | |
| Cd4; CD4 antigen; L3T4; Ly-4; T-cell surface antigen T4/Leu-3 | |
| Rat | |
| Affinity Purified | |
| RUO | |
| Primary | |
| Store undiluted at 4°C |
| Flow Cytometry | |
| H129.19 | |
| Unconjugated | |
| Aqueous buffered solution containing BSA, goat serum, and ≤0.09% sodium azide. | |
| A.TH mouse CTL clone A15.1.17 | |
| 1 mL | |
| Immunology | |
| Mouse | |
| IgG2a κ |
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