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IL-4 Recombinant Protein

CATALOG NUMBER: 40-604

Specifications
source-species:
E. coli
Species:
Human
source-species:
E. coli
Recombinant Protein Sequence:
MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS
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.
Purity:
Greater than 98% by SDS-PAGE gel and HPLC analyses.
physical-state:
Lyophilized
Storage Conditions:
The lyophilized IL-4 recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted IL-4 is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing IL-4 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.
Ncbi Official Symbol:
IL4
Additional Names:
BSF1, IL-4, BCGF1, BSF-1, BCGF-1, Interleukin-4, B-cell stimulatory factor 1
Protein Accession Number:
NP_000580.1
Protein Gi Number:
4504669
Ncbi Gene Id Number:
3565
Background:
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.

FOR RESEARCH USE ONLY

For additional information, visit ProSci’s Terms & Conditions Page.

Disclaimer:
This product is for research use only.

CATALOG NUMBER:

40-604

List Size:
0.02 mg

List Price:

$370.00

Datasheet
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