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 beta2-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.
Applications:Suitable for use in Immunofluorescence, Western Blot, Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:1000Immunohistochemistry: 1:50-1:200Immunofluorescence: 1:50-1:200Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size：100ul
Host：rabbit
Source Antibody：human
Grade：Affinity Purified
Purity：Purified by immunoaffinity chromatography.
Form：Supplied as a liquid PBS, 0.05% sodium azide, pH 7.2.
Specificity：Recognizes endogenous levels of CD4. Species Crossreactivity: Human, mouse
Isotype：IgG
Calc Applications Abbrev：IF IHC WB
Calc Crossreactivity：Hu Mo
Immunogen：Synthetic peptide corresponding to amino acids 391-440 of Human CD4.
