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背景介绍 IL-21 stimulates proliferation of B-cell stimulated by crosslinking of the CD40 antigen. It inhibits proliferation stimulated by IL-4 plus anti-IgM. IL-21 augments stimulation of the proliferation of naive CD45RA(+) but not memory CD45R0(+) T-cells mediated by engagement of CD3. IL-21 stimulates the proliferation of bone marrow progenitor cells and the expression of the NK-cell marker CD56 in the presence of IL-15. The Interleukin-21 receptor is closely related to human IL-2 beta receptor. The receptor contains a WSXWS motif in the extracellular region, typical of type 1 cytokine receptors. The receptor is expressed on NK-cells, T- cells, and B-cell line. The functional signaling complex activates Janus kinases JAK1, JAK3, and the STAT proteins STAT1, and STAT3. 产品介绍 Recombinant IL-21 is a disulfide-linked homodimeric protein consisting of 132 amino acid residues, and migrates as an approximately 15 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding murine Interleukin-21 mature chain was expressed in E. coli.
询价背景介绍 IL-2 is produced mainly by T- cells expressing the surface antigen CD4 following cell activation by mitogens or allogen. Interleukin-2 (IL-2) has multiple, sometimes opposing, functions during an inflammatory response. It is a potent inducer of T-cell proliferation and T- helper 1 (Th1) and Th2 effector T-cell differentiation and provides T cells with a long-lasting competitive advantage resulting in the optimal survival and function of memory cells. In a regulatory role, IL-2 is important for the development, survival, and function of regulatory T cells, it enhances Fas-mediated activation-induced cell death, and it inhibits the development of inflammatory Th17 cells. Thus, in its dual and contrasting functions, IL-2 contributes to both the induction and the termination of inflammatory immune responses. 产品介绍 Recombinant IL-2 is a disulfide-linked monomeric protein consisting of 150 amino acid residues, and migrates as an approximately 17 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding murine Interleukin-2 mature chain was expressed in E. coli.
询价背景介绍 IL-2 is produced mainly by T- cells expressing the surface antigen CD4 following cell activation by mitogens or allogen. Interleukin-2 (IL-2) has multiple, sometimes opposing, functions during an inflammatory response. It is a potent inducer of T-cell proliferation and T- helper 1 (Th1) and Th2 effector T-cell differentiation and provides T cells with a long-lasting competitive advantage resulting in the optimal survival and function of memory cells. In a regulatory role, IL-2 is important for the development, survival, and function of regulatory T cells, it enhances Fas-mediated activation-induced cell death, and it inhibits the development of inflammatory Th17 cells. Thus, in its dual and contrasting functions, IL-2 contributes to both the induction and the termination of inflammatory immune responses. 产品介绍 Recombinant IL-2 is a disulfide-linked monomeric protein consisting of 150 amino acid residues, and migrates as an approximately 17 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding murine Interleukin-2 mature chain was expressed in E. coli.
询价背景介绍 IL-2 is produced mainly by T- cells expressing the surface antigen CD4 following cell activation by mitogens or allogen. Interleukin-2 (IL-2) has multiple, sometimes opposing, functions during an inflammatory response. It is a potent inducer of T-cell proliferation and T- helper 1 (Th1) and Th2 effector T-cell differentiation and provides T cells with a long-lasting competitive advantage resulting in the optimal survival and function of memory cells. In a regulatory role, IL-2 is important for the development, survival, and function of regulatory T cells, it enhances Fas-mediated activation-induced cell death, and it inhibits the development of inflammatory Th17 cells. Thus, in its dual and contrasting functions, IL-2 contributes to both the induction and the termination of inflammatory immune responses. 产品介绍 Recombinant Interleukin-2 is a disulfide-linked monomer protein consisting of 133 amino acid residues, migrates as an approximately 15 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human Interleukin-2 mature chain was expressed in E. coli.
询价背景介绍 IL-2 is produced mainly by T- cells expressing the surface antigen CD4 following cell activation by mitogens or allogen. Interleukin-2 (IL-2) has multiple, sometimes opposing, functions during an inflammatory response. It is a potent inducer of T-cell proliferation and T- helper 1 (Th1) and Th2 effector T-cell differentiation and provides T cells with a long-lasting competitive advantage resulting in the optimal survival and function of memory cells. In a regulatory role, IL-2 is important for the development, survival, and function of regulatory T cells, it enhances Fas-mediated activation-induced cell death, and it inhibits the development of inflammatory Th17 cells. Thus, in its dual and contrasting functions, IL-2 contributes to both the induction and the termination of inflammatory immune responses. 产品介绍 Recombinant Interleukin-2 is a disulfide-linked monomer protein consisting of 133 amino acid residues, migrates as an approximately 15 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human Interleukin-2 mature chain was expressed in E. coli.
询价背景介绍 IL-18 is synthesized as a biologically inactive precursor protein that has limited biological activity. The proform of IL18 is processed by one of the caspases, Caspase-1, to generate the 18 kDa bioactive molecule. IL-18 is produced during the acute immune response by macrophages and immature dendritic cells. Interleukin-18 is expressed by a variety of immune and non-immune cells, including monocytes and macrophages. IL-18 is one of the pro-inflammatory cytokines. The activities of IL-18 appear to be species-specific. An important function of IL-18 is the regulation of functionally distinct subsets of T-helper cells required for cell mediated immune responses. IL-18 functions as a growth and differentiation factor for Th1 cells. IL-18 up-regulates FAS ligand mediated cytotoxic activitiy of murine natural killer cells. IL-18 is part of a complex regulatory circuit involved in causing cell death by apoptosis. 产品介绍 Recombinant Interleukin-18 is a disulfide-linked monomer protein consisting of 158 amino acid residues, migrates as an approximately 18 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human Interleukin-18 mature chain was expressed in E. coli.
询价背景介绍 IL-18 is synthesized as a biologically inactive precursor protein that has limited biological activity. The proform of IL18 is processed by one of the caspases, Caspase-1, to generate the 18 kDa bioactive molecule. IL-18 is produced during the acute immune response by macrophages and immature dendritic cells. Interleukin-18 is expressed by a variety of immune and non-immune cells, including monocytes and macrophages. IL-18 is one of the pro-inflammatory cytokines. The activities of IL-18 appear to be species-specific. An important function of IL-18 is the regulation of functionally distinct subsets of T-helper cells required for cell mediated immune responses. IL-18 functions as a growth and differentiation factor for Th1 cells. IL-18 up-regulates FAS ligand mediated cytotoxic activitiy of murine natural killer cells. IL-18 is part of a complex regulatory circuit involved in causing cell death by apoptosis. 产品介绍 Recombinant Interleukin-18 is a disulfide-linked monomer protein consisting of 158 amino acid residues, migrates as an approximately 18 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human Interleukin-18 mature chain was expressed in E. coli.
询价背景介绍 Mouse IL-13 is produced primarily by activated Th2 cells. Human IL-13 is expressed in activated T- helper cells (resembling Th0, Th1, Th2), and T-cells expressing CD8. The alpha chain of the IL1-3 receptor has weak binding activity for IL-13. High affinity receptors are formed when the receptor alpha chains of IL-13 and IL-4 receptors are coexpressed. The receptors for IL-13 and IL-4 share a common gamma subunit that is found also in the IL-2 receptor. Different IL-13 receptor structures have been shown to exist on various cell types and the IL-13 receptor may share more than one component with IL-4 receptor. IL-13 down-modulates macrophage activity, reducing the production of pro-inflammatory cytokines and chemokines in response to IFN-gamma or bacterial lypopolysaccharides. IL-13 enhances the production of the IL-1 receptor antagonist IL-1ra. IL-13 also decreases the production of nitric oxide by activated macrophages, leading to a decrease in parasiticidal activity. IL-13 induces differentiation of human monocytes, enhances survival time in culture, and also induces differentiation and proliferation and Isotype switching in B-cells. 产品介绍 Recombinant IL-13 is a disulfide-linked monomer protein consisting of 115 amino acid residues,and migrates as an approximately 13 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human Interleukin-13 mature chain was expressed in E. coli.
询价背景介绍 Mouse IL-13 is produced primarily by activated Th2 cells. Human IL-13 is expressed in activated T- helper cells (resembling Th0, Th1, Th2), and T-cells expressing CD8. The alpha chain of the IL1-3 receptor has weak binding activity for IL-13. High affinity receptors are formed when the receptor alpha chains of IL-13 and IL-4 receptors are coexpressed. The receptors for IL-13 and IL-4 share a common gamma subunit that is found also in the IL-2 receptor. Different IL-13 receptor structures have been shown to exist on various cell types and the IL-13 receptor may share more than one component with IL-4 receptor. IL-13 down-modulates macrophage activity, reducing the production of pro-inflammatory cytokines and chemokines in response to IFN-gamma or bacterial lypopolysaccharides. IL-13 enhances the production of the IL-1 receptor antagonist IL-1ra. IL-13 also decreases the production of nitric oxide by activated macrophages, leading to a decrease in parasiticidal activity. IL-13 induces differentiation of human monocytes, enhances survival time in culture, and also induces differentiation and proliferation and Isotype switching in B-cells. 产品介绍 Recombinant IL-13 is a disulfide-linked monomer protein consisting of 115 amino acid residues,and migrates as an approximately 13 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human Interleukin-13 mature chain was expressed in E. coli.
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