生物来源
human
重组
expressed in E. coli
方案
≥98% (HPLC)
≥98% (SDS-PAGE)
表单
lyophilized
分子量
15.0 kDa
包装
pkg of 10 μg
技术
cell culture | mammalian: suitable
杂质
<0.1 EU/μg endotoxin, tested
颜色
white to off-white
UniProt登记号
运输
wet ice
储存温度
−20°C
基因信息
human ... IL21(59067)
一般描述
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 conjunction) 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 (gc) 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 15.0 kDa protein consisting of 132 amino acid residues.
生化/生理作用
IL-21 is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation. Recombinant human IL-21 is a 15.0 kDa protein consisting of 132 amino acid residues.
外形
Lyophilized from 10 mM Sodium Phosphate, pH 7.6.
制备说明
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a stabilizer (example 5% Trehalose) and store in working aliquots at -20°C to -80°C.
其他说明
MQDRHMIRMR QLIDIVDQLK NYVNDLVPEF LPAPEDVETN CEWSAFSCFQ KAQLKSANTG NNERIINVSI KKLKRKPPST NAGRRQKHRL TCPSCDSYEK KPPKEFLERF KSLLQKMIHQ HLSSRTHGSE DS
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
常规特殊物品
此项目有
Julia Parrish-Novak et al.
Journal of leukocyte biology, 72(5), 856-863 (2002-11-14)
Interleukin (IL)-21 was recently discovered using a functional cloning approach based on expression of its receptor. It is similar in domain organization and primary sequence to IL-2 and IL-15. Like these cytokines, IL-21 uses the common gamma chain of the
Jennifer Lee et al.
Immunology, 142(4), 573-580 (2014-02-06)
Systemic lupus erythematosus (SLE) is an autoimmune disease in which abnormal immune responses are mediated by tissue-binding autoantibodies and immune complex deposition. Because most SLE patients are women of child-bearing age, oestrogen has been suggested to play an important role
Iskra Tuero et al.
PLoS pathogens, 11(8), e1005101-e1005101 (2015-08-13)
Many viral infections, including HIV, exhibit sex-based pathogenic differences. However, few studies have examined vaccine-related sex differences. We compared immunogenicity and protective efficacy of monomeric SIV gp120 with oligomeric SIV gp140 in a pre-clinical rhesus macaque study and explored a
Elisabeth Salzer et al.
The Journal of allergy and clinical immunology, 133(6), 1651-1659 (2014-04-22)
Alterations of immune homeostasis in the gut can result in development of inflammatory bowel disease (IBD). Recently, Mendelian forms of IBD have been discovered, as exemplified by deficiency of IL-10 or its receptor subunits. In addition, other types of primary
Emily K Moser et al.
PloS one, 10(4), e0120169-e0120169 (2015-04-08)
Influenza A virus (IAV) infection of the respiratory tract elicits a robust immune response, which is required for efficient virus clearance but at the same time can contribute to lung damage and enhanced morbidity. IL-21 is a member of the
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