ProSci

sCD4 Recombinant Protein

Product Code:
 
PSI-40-638
Product Group:
 
Recombinant Proteins
Supplier:
 
ProSci
Regulatory Status:
 
RUO
Shipping:
 
Blue Ice or room temp
Storage:
 
The recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted protein is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing the recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
 

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PSI-40-638-10ug10ug£307.00
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This product comes from: United States.
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Further Information

Additional Names:
Cluster determinant 4, T-cell surface glycoprotein CD4, Interleukin IL-16 receptor, T-cell surface antigen T4/Leu-3, Leu-3(a, b), OKT4(a-f), L3T4 (mouse)
Background:
Cluster determinant 4 (CD4), a type I transmembrane glycoprotein of the immunoglobulin family of receptors, plays an integral role in signal transduction and T cell differentiation, development and activation. CD4 is constitutively expressed on the surface of various immune cells, including monocytes, macrophages, eosinophils, dendritic cells, and most prominently T lymphocytes, where it functions as an essential co-receptor and co-ligand for T cell receptor (TCR) and major histocompatibility complex class II (MHC-II) molecules. Ligation by MHC-II molecules on the surface of antigen-presenting cells can serve to influence adaptive immunity by facilitating helper T cell activation and macrophage differentiation, while ligation by proinflammatory cytokine IL-16 can contribute to innate immunity by chemoattracting CD4-expressing peripheral immune cells along an IL-16 gradient for their recruitment and activation at sites of inflammation. The protean functionality of CD4 extends past immunity as CD4 also notably serves as the major receptor for HIV-1 and human herpes virus 7 (HHV-7) infections. During HIV pathogenesis, CD4 acts instrumentally as a high-affinity entry receptor for the internalization of HIV-1 following binding of the viral envelope glycoprotein gp120 to CD4?s extracellular domain. CHO cell-derived Recombinant Human sCD4 is amonomeric glycoprotein of 371 amino acid residues, which correspond to the extracellular CD4 domain, and a calculated molecular weight of 41.3 kDa. As a result of glycosylation, Recombinant Human sCD4 migrates with an apparent molecular mass of approximately 45-55 kDa by SDS-PAGE Gel analysis, under reducing conditions.
Biological Activity:
Determined by its ability to binds HeLa cells expressing cell-surface MHC-II molecules.
NCBI Gene ID #:
920
NCBI Official Name:
T-cell surface glycoprotein CD4
NCBI Official Symbol:
CD4
NCBI Organism:
Homo sapiens
Physical State:
Lyophilized
Purity:
> 95% by SDS-PAGE gel and HPLC analyses.
Recombinant Protein Sequence:
#N/A
Source:
CHO cells
Swissprot #:
P01730

Documents