Recombinant Human Interleukin 4 (IL4) is a bioactive protein intended for use in cell culture applications. IL4 promotes the proliferation and differentiation of activated B cells. In addition, IL4 up-regulates class II MHC antigen expression and IgE receptors.
• High purity—no interference from other proteins or contaminants • High biological activity—more results with less protein • Proven compatibility—Gibco® proteins bioassayed with Gibco® media
High Purity Recombinant Bioactive Protein Recombinant Human Interleukin 4 is one of our more than 250 available Gibco® recombinant proteins. To help ensure Gibco® growth factors are of the highest quality, each protein is analyzed for purity along with structural homogeneity to ensure a biologically active protein.
High Biological Activity In-house activity testing of Gibco® Recombinant Proteins includes cell proliferation, cytotoxicity, chemotaxis, calcium flux, secondary cytokine up-regulation, induction of surface antigen expression, antiviral, and protease assays. Recombinant Human Interleukin 4 (IL4) specific activity is determined by measuring the dose-dependent proliferation of human TF-1 cells.
Proven Compatibility Gibco® proteins are bioassayed with Gibco® media. Since 1962, Gibco® has been the consistent provider of high quality media, reagents, and sera for reliable cell culture.
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For Research Use Only. Not intended for animal or human diagnostic or therapeutic use.
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