{"product_id":"il-4-polyclonal-antibody-bs5764","title":"IL-4 Polyclonal Antibody-BS5764","description":"\u003cp\u003eIL-4 Polyclonal Antibody\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: BS5764-50, BS5764-100\u003c\/p\u003e\n\n\u003cp\u003eSizes: 50µl, 100µl\u003c\/p\u003e\n\n\u003cp\u003eAlternative Name: Interleukin-4; Interleukin 4; Interleukin4; B-cell stimulatory factor 1; BSF-1; BSF1; Binetrakin; Lymphocyte stimulatory factor 1; Pitrakinra; IL4\u003c\/p\u003e\n\n\u003cp\u003eProduct: Rabbit IgG, 1mg\/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2\u003c\/p\u003e\n\n\u003cp\u003eSwiss-Prot: P05112\u003c\/p\u003e\n\n\u003cp\u003eHost: Rabbit\u003c\/p\u003e\n\n\u003cp\u003eReactivity: Human, Mouse, Rat\u003c\/p\u003e\n\n\u003cp\u003eApplications: WB\u003c\/p\u003e\n\n\u003cp\u003eAll Applications: WB: 1:500~1:1000\u003c\/p\u003e\n\n\u003cp\u003eBackground: Interleukin-4 (IL-4), also designated B cell stimulatory factor-1, is a glycosylated cytokine secreted by activated T lymphocytes, basophils and mast cells. The secreted IL-4 protein promotes the growth and differentiation of cells that participate in immune defense by favoring such events as the expansion of the Th2 lineage relative to Th1 cells. These T helper cell subsets are defined by their pattern of cytokine secretion: Th1 cells secrete IL-2, TNFβ and IFN-γ, while Th2 cells secrete IL-4, IL-5 and IL-10. Another key immunological function of IL-4 is to induce immunoglobulin class switching. IL-4 has been shown to induce the production of IgE and enhance IgG4 secretion by B cells, but suppress the production of IgM, IgA, IgG1, IgG2, and IgG3.\u003c\/p\u003e \n\n\u003cp\u003ePurification and Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is \u0026gt; 95% (by SDS-PAGE).\u003c\/p\u003e\n\n\u003cp\u003eStorage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.\u003c\/p\u003e\n\n\u003cp\u003eSpecificity: IL-4 polyclonal antibody detects endogenous levels of IL-4 protein.\u003c\/p\u003e\n\n\u003cp\u003eBioworld Molecular Weight: ~ 18 kDa\u003c\/p\u003e\n\n\u003cp\u003eNote: For research use only, not for use in diagnostic procedure.\u003c\/p\u003e\n\n\u003cp\u003eExtra Notes: Western blot (WB) analysis of IL-4 polyclonal antibody at 1:500 dilution\u003cbr\u003e\nLane 1: MCF-7 cell lysate\u003cbr\u003e\nLane 2: sp2\/0 cell lysate\u003cbr\u003e\nLane 3: PC12 cell lysate\u003c\/p\u003e\n\n\u003cp\u003eImmunogen: Synthetic peptide, corresponding to amino acids 108-153 of Human IL-4.\u003c\/p\u003e\n\n\u003cp\u003eConjugate: Unconjugated\u003c\/p\u003e\n\n\u003cp\u003eModification: Unmodified\u003c\/p\u003e","brand":"BioWorld","offers":[{"title":"50µl","offer_id":42911815663795,"sku":"BS5764-50","price":260.23,"currency_code":"CAD","in_stock":true},{"title":"100µl","offer_id":42911815696563,"sku":"BS5764-100","price":452.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/thumbnail_d1447bac803ec9be_11-14-09-19-51_93fed028-cf09-458b-b489-c16ecc811dd6.jpg?v=1703179880","url":"https:\/\/afsbio.com\/products\/il-4-polyclonal-antibody-bs5764","provider":"AFSBio Inc.","version":"1.0","type":"link"}