IL-21 Protein (AA 30-162)
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- 抗原 See all IL-21 (IL21) 蛋白
- IL-21 (IL21) (Interleukin 21 (IL21))
- 蛋白类型
- Recombinant
- 产品特性
- AA 30-162
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宿主
- 人
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资源
- 大肠杆菌(E. Coli)
- 序列
- Gln30-Ser162
- 产品特性
- A DNA sequence encoding the Human IL-21 protein (Q9HBE4) (Gln30-Ser162) was expressed with a polyhistidine tag at the N-terminus.
- 纯度
- > 90 % as determined by reducing SDS-PAGE.
- Top Product
- Discover our top product IL21 蛋白
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- 限制
- 仅限研究用
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- 状态
- Lyophilized
- 缓冲液
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Lyophilized from sterile PBS, pH 7.4., 5 % trehalose, 5 % mannitol, 0.01 % tween-80.
Normally 5 % - 8 % trehalose, mannitol and 0.01 % Tween80 are added as protectants before lyophilization. - 储存条件
- 4 °C,-20 °C,-80 °C
- 储存方法
- Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
- 有效期
- 12 months
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- 抗原
- IL-21 (IL21) (Interleukin 21 (IL21))
- 别名
- IL-21 (IL21 产品)
- 别名
- IL-21 Protein, Za11 Protein, interleukin 21 Protein, IL21 Protein, Il21 Protein
- 背景
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Abbreviation: IL-21
Target Synonym: Interleukin-21,Za11,IL21,
Background: IL-21 is a potent cytokine regulating many cell types of the immune system. IL-21 is produced by activated T follicular helper cells (Tfh), Th17 cells, and NKT cells. Tfh-derived IL-21 plays an important role in the development of humoral immunity through its autocrine effects on the Tfh cell and paracrine effects on immunoglobulin affinity maturation, plasma cell differentiation, and B cell memory responses. IL-21 protein regulates several aspects of T cell function. It co-stimulates the activation, proliferation, and survival of CD8+ T cells and NKT cells and promotes Th17 cell polarization. IL-21 blocks the generation of regulatory T cells and their suppressive effects on CD4+ T cells. In addition to its role in T cell biology, IL-21 also plays a critical role in B cell activation, proliferation, differentiation, and apoptosis. It is also required for the migration of dendritic cells to draining lymph nodes. And IL-21 suppresses cutaneous hypersensitivity reactions by limiting allergen-specific IgE production and mast cell degranulation. In the autoimmune disease Systemic lupus erythematosus (SLE), a link between IL-21 and SLE disease susceptibility and progression was recently reported.
- 分子量
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Calculated MW: 17.8 kDa
Observed MW: 18 kDa
- UniProt
- Q9HBE4
- 途径
- JAK/STAT Signaling, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response
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