IL-21 Protein (AA 18-146)
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北京 101111
Quick Overview for IL-21 Protein (AA 18-146) (ABIN7677680)
抗原
See all IL-21 (IL21) 蛋白蛋白类型
生物活性
宿主
资源
应用范围
纯度
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产品特性
- AA 18-146
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序列
- MHKSSPQGPD RLLIRLRHLI DIVEQLKIYE NDLDPELLSA PQDVKGHCEH AAFACFQKAK LKPSNPGNNK TFIIDLVAQL RRRLPARRGG KKQKHIAKCP SCDSYEKRTP KEFLERLKWL LQKMIHQHLS
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纯化方法
- > 90% by SDS - PAGE
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内毒素水平
- < 1 EU per 1ug of protein (determined by LAL method)
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Biological Activity Comment
- The activity is determined by the IFN-g ELISA in a using NK-92 human natural killer cells. The ED50 range ≤ 100 ng/ml.
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应用备注
- Optimal working dilution should be determined by the investigator.
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限制
- 仅限研究用
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状态
- Liquid
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浓度
- 1 mg/mL
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缓冲液
- Phosphate-Buffered Saline ( pH 7.4)
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储存条件
- 4 °C,-20 °C,-80 °C
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储存方法
- Can be stored at +2C to +8C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
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- IL-21 (IL21) (Interleukin 21 (IL21))
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别名
- IL-21
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背景
- IL-21, also known as Interleukin-21, is produced from activated helper T cells such as Th17 cells and is a member of the common-γ chain family of cytokines that includes IL-2, IL-4, IL-7, IL-9, and IL-15. Previous studies have shown that IL-21 plays an important role in the regulation of both innate and adaptive immune responses. IL-21 is critical for NK cell activation and expansion. IL-21 also promotes terminal B cell differentiation into plasma cells and antibody production. Furthermore, IL-21 enhances antigen-specific CD8 T cell expansion and the differentiation of follicular helper T cells in vivo. IL-21 also promotes the differentiation of the inflammatory Th17 lineage and contributes to autoimmunity. IL-21 isoform is an alternative splice variant form of IL-21 that we previously identified and reported to have a similar function as original IL-21. Follicular helper T cells also produce IL-21 to activate and differentiate B cells. Recombinant mouse IL-21, was expressed in E. coli and purified by using conventional chromatography techniques.
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分子量
- 15 kDa (130aa), confirmed by MALDI-TOF
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NCBI登录号
- NP_068554
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途径
- JAK/STAT Signaling, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response
抗原
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