CD4 (D7D2Z) Rabbit mAb #25229
- WB
- IHC
Supporting Data
| REACTIVITY | M R Hm |
| SENSITIVITY | Endogenous |
| MW (kDa) | 55 |
| Source/Isotype | Rabbit IgG |
Application Key:
- WB-Western Blotting
- IHC-Immunohistochemistry
Species Cross-Reactivity Key:
- M-Mouse
- R-Rat
- Hm-Hamster
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| IHC Leica Bond | 1:50 - 1:200 |
| Immunohistochemistry (Paraffin) | 1:50 - 1:200 |
Storage
For a carrier free (BSA and azide free) version of this product see product #27520.
Protocol
Specificity / Sensitivity
CD4 (D7D2Z) Rabbit mAb recognizes endogenous levels of total mouse and rat CD4 protein. Non-specific staining in mouse kidney and liver has been observed.
Species Reactivity:
Mouse, Rat, Hamster
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala232 of mouse CD4 protein.
Background
Cluster of Differentiation 4 (CD4) is a glycoprotein composed of an amino-terminal extracellular domain (four domains: D1-D4 with Ig-like structures), a transmembrane part, and a short cytoplasmic tail. CD4 is expressed on the surface of T helper cells, regulatory T cells, monocytes, macrophages, and dendritic cells, and plays an important role in the development and activation of T cells. On T cells, CD4 is the co-receptor for the T cell receptor (TCR), and these two distinct structures recognize the Antigen–Major Histocompatibility Complex (MHC). Specifically, the D1 domain of CD4 interacts with the β2-domain of the MHC class II molecule. CD4 ensures specificity of the TCR–antigen interaction, prolongs the contact between the T cell and the antigen presenting cell, and recruits the tyrosine kinase Lck, which is essential for T cell activation (1).
Limited Uses
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