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英文名 :Recombinant Human IL-21
库存 :大量
供应商 :PeproTech(派普泰克)
CAS号 :无
Synonyms : |
none. |
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Description : |
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 induction of differentiation of T-cells-stimulated B-cells into plasma cells and memory B-cells, stimulation (in conjuction) with IL-4 of IgG production, and 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 gamma 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 human IL-21 is a 15.4 kDa protein consisting of 132 amino acid residues. |
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Catalog #: |
200-21 |
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Source : |
E.coli |
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Purity : |
Greater than 98% by SDS-PAGE gel and HPLC analyses. |
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Endotoxin Level : |
Endotoxin level is less than 0.1 ng per μg (1EU/μg). |
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Biological Activity : |
Assay #1: Determined by its ability to proliferate activated B cells. |
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Selected References : |
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AA Sequence : |
MQDRHMIRMR QLIDIVDQLK NYVNDLVPEF LPAPEDVETN CEWSAFSCFQ KAQLKSANTG NNERIINVSI KKLKRKPPST NAGRRQKHRL TCPSCDSYEK KPPKEFLERF KSLLQKMIHQ HLSSRTHGSE DS |
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PubMed Link : |
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Country of Origin : |
USA |
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Special Sizes: |
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Usage: |
PeproTech重组人IL-21 参考文献链接:
http://www.peprotech.com/en-US/Pages/References/200-21
派普泰克生物科技(苏州)有限公司(PeproTech中国)
品牌商实名认证
钻石会员
入驻年限:15年