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CD4a Mouse, FITC, Clone: 74-12-4, BD
Mouse Monoclonal Antibody
Supplier: BD Biosciences 559585
Description
The 74-12-4 (also known as clone PT4) monoclonal antibody specifically binds to CD4, a 55-kDa antigen expressed on T lymphocytes. This antibody does not react with CTL effectors, CTL precursors, or NK cells (ie, CD8[bright] cells) and it does not cross-react with human or bovine cells. Two peripheral T-helper lymphocyte phenotypes can be distinguished in the pig: CD4+CD8- and CD4+CD8[dull]. mAb 74-12-4 has been reported to inhibit proliferative responses of peripheral blood lymphocytes to mitogen, soluble antigen, and alloantigen. It is only marginally effective for in vivo depletion of peripheral CD4+ T cells. Two alloantigenic forms of CD4 have been recognized in miniature swine based upon their recognition (CD4.1) or lack of recognition (CD4.2) by mAb 74-12-4; the CD4.2 phenotype displays an autosomal recessive, non-MHC-linked, pattern of inheritance. The molecular basis for the polymorphism is a cluster of nucleotide differences leading to multiple amino-acid substitutions in the Ig CDR2-like loop structure. This mAb was clustered as anti-CD4a at the First International Swine CD Workshop. It has been reported to crossreact with chicken leukocytes.
Specifications
CD4a | |
Monoclonal | |
0.5mg/mL | |
Aqueous buffered solution containing ≤0.09% sodium azide. | |
dd miniature swine thymocytes | |
0.1 mg | |
Immunology | |
Chicken, Porcine | |
IgG2b κ |
Flow Cytometry | |
74-12-4 | |
FITC | |
Mouse | |
Affinity Purified | |
RUO | |
Primary | |
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. |
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