Recombinant Mouse IL-4

Recombinant Mouse IL-4

• Background: Mouse Interleukin-4(IL-4) is a monomeric, Th2 cytokine that shows pleiotropic effects during immune responses. It is a glycosylated polypeptide that contains three intrachain disulfide bridges and adopts a bundled four α­helix structure. IL­4 exerts its effects through two receptor complexes, Participates in at least several B-cell activation processes as well as of other cell types. IL­4 is primarily expressed by Th2­biased CD4+T cells, mast cells, basophils, and eosinophils. It promotes cell proliferation, survival, and immunoglobulin class switch to IgG1 and IgE in mouse B cells, acquisition of the Th2 phenotype by naïve CD4+T cells, priming and chemotaxis of mast cells, eosinophils, and basophils, and the proliferation and activation of epithelial cells. IL­4 plays a dominant role in the development of allergic inflammation and asthma. It also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes.
• Description: Recombinant Mouse Interleukin-4 is produced by our E.coli expression system and the target gene encoding His23-Ser140 is expressed.
• Synonyms: Interleukin-4; B-cell IgG differentiation factor; B-cell growth factor 1; B-cell stimulatory factor 1; IGG1 induction factor; Lymphocyte stimulatory factor 1; IL-4; BSF-1
• CAS Number: 9000-83-3
• UniProt: P07750
• Endotoxin: Less than 0.001 ng/µg (0.01 EU/µg) as determined by LAL test.
• Purity: Greater than 95% as determined by reducing SDS-PAGE.
• Bioactivity: Measured in a cell proliferation assay using M-NFS-60 mouse lymphoblast cells.  The ED50 for this effect is 0.01 ng/ml.
• Molecular Weight: 13.4 KDa
• Shipping Conditions: The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
• Storage Conditions: Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.