Active GMP Recombinant Human IL4 Protein

• Cat.No.: IL4-150HG
• Product Overview: Recombinant Human IL4 (His25-Ser153) was produced in HEK293 cell in an animal component free process under cGMP guidelines.

Specification

• Description: Interleukin-4 (IL-4) is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. IL-4 is 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 allergic response.
• Source: HEK293 cell
• Species: Human
• Form: Lyophilized.
• Bio-activity: Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells.
  The ED50 for this effect is typically 0.08-0.2 ng/ml.
• AA Sequence: HKCDITLQEIIKTLNSLTEQKTLCT ELTVTDIFAASKNTTEKETFCRAAT VLRQFYSHHEKDTRC LGATAQQFHRHKQLIRFLKRLDRNL WGLAGLNSCPVKEANQSTLENFLER LKTIMREKYSKCSS
• Residual Host Cell DNA Content: <10pg/mg
• Residual Host Cell Protein Content: <1ug/mg
• Endotoxin: <0.1EU/ug
• Purity: Greater than 95% as determined by reducing SDS-PAGE.
• Usage: Recommemnd working concentration: 50-100ng/ml or 500-1000U/ml
• Storage: Lyophilized and reconstituted protein should be stored at -80 centigrade. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
• Reconstitution: Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
  It is not recommended to reconstitute to a concentration >100μg/ml.
  Dissolve the lyophilized protein in ddH2O.
  Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
• Quality Statement: Our GMP proteins are produced according to relevant sections of the following documents: WHO TRS, No. 822, 1992 Annex 1, Good Manufacturing Practices for Biological Products; USP Chapter 1043, Ancillary Materials for Cell, Gene and Tissue-Engineered Products and USP Chapter 92, Growth Factors and Cytokines Used in Cell Therapy Manufacturing.
• Shipping: The product is shipped at ambient temperature. Upon receipt, store it immediately at the recommended temperature.

Gene Information

• Gene Name: IL4 interleukin 4 [ Homo sapiens ]
• Official Symbol: IL4
• Synonyms: IL4; interleukin 4; interleukin-4; B cell growth factor 1; B_cell stimulatory factor 1; BCGF 1; BCGF1; BSF1; IL 4; lymphocyte stimulatory factor 1; binetrakin; pitrakinra; IL-4; BSF-1; BCGF-1
• Gene ID: 3565
• mRNA Refseq: NM_000589
• Protein Refseq: NP_000580
• MIM: 147780
• UniProt ID: P05112