Recombinant Human IL4 (E. coli)

Cat. No.
Z100545
Unit
Price
$63.00
Cat. No. Z100545
Name Recombinant Human IL4 (E. coli)
Description IL4 is produced mainly by a sub-population of activated T helper cells which also secrete IL5 and IL6. The biological activities of IL4 are mediated by a specific receptor, the extracellular domain of which is related to the receptors for EPO, IL6, and the beta chain of the IL-2 receptor. IL4 participates in several B-cell activation processes as well as of other cell types. A co-stimulator of DNA-synthesis, IL4 induces the expression of class II MHC molecules on resting B-cells, enhances both secretion and cell surface expression of IgE and IgG1, and also regulates the expression of the low affinity Fc receptor for IgE on both lymphocytes and monocytes. Pre-treatment of macrophages with IL4 prevents the production of IL1, TNF-alpha and prostaglandins in response to activation of the cells by bacterial endotoxins or IFN-gamma.
Organism Human (H. sapiens)
Unit quantity 10 µg
Family Other Interleukins
Aliases IL-4, BCGF, BCDF, B cell stimulating factor, BSF-1, Lymphocyte stimulatory factor 1
Recombinant Human Interleukin-4 (IL4)
Gene Symbol IL4
Gene ID 3565
Accession Number P05112
Source E. coli
Species Human (H. sapiens)
Appearance Lyophilized Powder
Molecular Weight 15 kDa
Endotoxin Level <1.0 EU/µg of recombinant protein as determined by the LAL method
Purity >95% as determined by SDS-PAGE
Formulation Lyophilized from a 0.2 μm filtered solution in sodium phosphate buffer with NaCl (pH 7.8)
Function A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
Reconstitution A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
Storage The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.
Usage For research use only. Not for diagnostic or therapeutic use.
Material Citation If use of this material results in a scientific publication, please cite the material in the following manner: Applied Biological Materials Inc, Cat. No. Z100545
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