Mouse Interleukin-4 Recombinant

CAT: 0421-90194-ASize: 2 µgDry Ice: NoHazardous: No
CAT#:0421-90194-ASize:2 µg
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AVAILABILITY: InStock
24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Background
Interleukin-4 is produced mainly by a subpopulation of activated T-cells (Th2) that are the biologically most active helper cells for B-cells and that also secrete IL-5 and IL-6. The biological activities of IL-4 are mediated by a specific receptor. The extracellular domain of the IL-4 receptor is related to the receptors for EPO, IL-6, and the beta chain of the IL2 receptor (CD124) . Two types of IL-4 receptor (IL-4R) exist: the type 1 receptor is a heterodimer consisting of CD132 and IL-4R-alpha. The type 2 receptor is a heterodimer consisting of IL-4Ralpha and IL-13Ralpha1. IL-4 enhances expression of MHC class 2 antigens on B-cells. It can promote their capacity to respond to other B-cell stimuli and to present antigens for T-cells. Pretreatment of macrophages with IL-4 prevents the production of IL1, TNF-alpha and prostaglandins in response to activation of the cells by bacterial endotoxins or IFN-gamma. IL-4 synergises with EPO and G-CSF in the generation of colonies containing granulocytes or erythroid progenitor cells in a colony formation assay.
Description
Recombinant mouse Interleukin-4 is a disulfide-linked monomer protein consisting of 121 amino acid residues, migrates as an approximately 14 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding mouse Interleukin-4 mature chain was expressed inE. coli.
UniProt
P07750
Endotoxin
< 0.1 ng/µg (1 EU/µg), using the LAL gel clot method.
Purity
≥ 96% by SDS-PAGE and HPLC
Format
Lyophilized protein
Reconstitution
Reconstitute at 0.1-1.0 mg/ml in distilled water. This solution can then be diluted into other buffers. To maximize product collection from vial surface, vortex briefly and then spin down to recollect the liquid.
Shipping Conditions
Gel Packs or Dry Ice
Storage Conditions
The lyophilized protein is stable for at least 2 years from date of receipt when stored at -20°C. Upon reconstitution, store in working aliquots at +4°C for up to one month, or at -20°C for up to six months, in the presence of a carrier protein. Avoid repeated freeze/thaw cycles.
Calculated Molecular Weight
14 kDa
Formulation
Lyophilized from a 0.2 µm filtered PBS solution, pH 7.0.

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