重组小鼠IL-21

重组小鼠IL-21 英文名称：Recombinant Murine IL-21 规格：2ug 价格：￥1,128 货号：210-21-2ug RUO PROTEINS IL-21 is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation. Its action generally enhances antigen-specific responses of immune cells. The biological effects of IL-21 include: inducing the differentiation of T cell-stimulated B cells into plasma cells and memory B cells; the stimulation of IgG production in conjunction with IL-4; and the induction of apoptotic effects in naïve B cells and stimulated B cells in the absence of T cell signaling. Additionally, IL-21 promotes the anti-tumor activity of CD8+ T cells and NK cells. IL-21 exerts its effect through binding to a specific type I cytokine receptor, IL-21R, which also contains the γ chain (γc) found in other cytokine receptors, including IL-2, IL-4, IL-7, IL-9 and IL-15. The IL-21/IL-21R interaction triggers a cascade of events, which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3. Recombinant Murine IL-21 is a 15.0 kDa protein consisting of 130 amino acid residues. Source: E.coli Synonyms: Interleukin-21, Za11 AA Sequence: MHKSSPQGPD RLLIRLRHLI DIVEQLKIYE NDLDPELLSA PQDVKGHCEH AAFACFQKAK LKPSNPGNNK TFIIDLVAQL RRRLPARRGG KKQKHIAKCP SCDSYEKRTP KEFLERLKWL LQKMIHQHLS Purity: ≥ 98% by SDS-PAGE gel and HPLC analyses. Biological Activity: Assay #1: Measured by its ability to induce STAT3 signaling in U937 Stat3-Luc reporter cells. Assay #2: Determined by its ability to stimulate the proliferation of human ANBL-6 cells. The expected ED50 is ≤ 1.0 ng/ml, corresponding to a specific activity of ≥ 1 x 106 units/mg. Recombinant Murine IL-21 Biological Activity Graph on U937 cells Recombinant Murine IL-21 Biological Activity Graph on ANBL-6 cells Calculated Molecular Weight: 15 kDa Accession Number: Q9ES17 Gene ID: 60505 Endotoxin: Endotoxin level is < 0.1 ng/ug of protein (< 1 EU/ug) Cross Reactivity Cited in References: Human, Mouse重组小鼠IL-21 是齐一生物公司重点推广产品，齐一生物代理PeproTech的产品原装正品质量，我公司有专业的人员进行全程指导，请放心购买、发货时均会附上质检报告单、使用说明书和推荐用法用量、提供正规发票欢迎来电咨询！ PeproTech于1988年创立于美国，Peprotech的产品具有很高的性价比，这些细胞因子应用于生命科学研究；在众多高水平的实验室和研究机构中广泛使用。截至2013年底，已被13,000篇SCI文献引用；取得了细胞因子产品领域居于地位。 PeproTech重组蛋白与科学服务领域是由经验丰富的蛋白质科学家开发出来的，因此能够为制备抗体提供高品质的原料。重组蛋白到抗原亲和纯化的抗体拥有自己的研发系统，能够保证产品的高品质。