CultureGro™ Human IL-4

$102.00

CultureGro™ Human IL-4 Recombinant Protein, Animal-Free

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 15.1 kDa globular protein containing 130 amino acid residues.

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Product Details

CultureGro™ Human IL-4 Recombinant Protein, Animal-Free Species: Human Published species: Human, Mouse Expression System: E. coli Amino acid sequence: MHKCDITLQE IIKTLNSLTE QKTLCTELTV TDIFAASKNT TEKETFCRAA TVLRQFYSHH EKDTRCLGAT AQQFHRHKQL IRFLKRLDRN LWGLAGLNSC PVKEANQSTL ENFLERLKTI MREKYSKCSS Molecular weight: 15.1 kDa Class: Recombinant Type: Protein Purity: ≥ 98% by SDS-PAGE gel and HPLC analyses. Endotoxin concentration: <0.1 EU/µg 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 10^6 units/mg. Conjugate: Unconjugated Form: Lyophilized Purification: HPLC, SDS-PAGE Contains no preservative Storage conditions: -20°C CAUTION: For Research Use Only. Not for use in diagnostic procedures.

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