Animal Free Cytokines
Recombinant Human IL-4


 
 
Synonyms :
BCGF, BCDF, B cell stimulating factor (BSF-1)
Description :
IL-4 is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. Produced by mast cells, T cells and bone marrow stromal cells, IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergy. Recombinant human IL-4 is a 14.9 kDa globular protein containing 129 amino acid residues.Manufactured using all non-animal reagents.
Catalog #:
AF-200-04
Source :
E.coli
Purity :
Greater than 98% by SDS-PAGE gel and HPLC analyses.
Endotoxin Level :
Endotoxin level is less than 0.1 ng per μg (1EU/μg).
Biological Activity :
The ED50 was determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is ≤ 0.2 ng/ml, corresponding to a specific activity of ≥ 5 x 106 units/mg.
AA Sequence :
MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS 
PubMed Link :
IL_4
Country of Origin :
USA
 
 
Size B
20μg
$215 
 
 
Size C
1mg
$4300 
 
 
 
 
Special Sizes: 
Many products can be ordered in custom sizes. Please click here to contact Peprotech with your request.
 
Usage:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.