IL-21 Protein (AA 25-155)
-
- 抗原 See all IL-21 (IL21) 蛋白
- IL-21 (IL21) (Interleukin 21 (IL21))
- 蛋白类型
- Recombinant
- 生物活性
- Active
- 产品特性
- AA 25-155
-
宿主
- 人
-
资源
- 大肠杆菌(E. Coli)
- 产品特性
-
ED50 < 0.5 ng/mL, measured by a cell growth inhibition assay using Mino cells, corresponding to a specific activity of > 2.0x 10^6 units/mg.
AA 25-155, expressed with an N-terminal Met. - 纯度
- > 95 % by SDS-PAGE analysis.
- 内毒素水平
- < 0.2 EU/μg, determined by LAL method.
- Top Product
- Discover our top product IL21 蛋白
-
-
- 限制
- 仅限研究用
-
- 状态
- Lyophilized
- 溶解方式
- Reconstituted in ddH2O at 100 μg/mL.
- 缓冲液
- Lyophilized after extensive dialysis against PBS.
- 储存条件
- -80 °C
- 储存方法
- Lyophilized recombinant human Interleukin-21 (rhIL-21) remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, rhIL-21 should be stable up to 2 weeks at 4 °C or up to 3 months at -20 °C.
- 有效期
- 6 months
-
- 抗原
- IL-21 (IL21) (Interleukin 21 (IL21))
- 别名
- Interleukin-21(IL-21) (IL21 产品)
- 背景
-
Interleukin-21 (IL-21) belongs to the Type I four helix bundle cytokines, and shares the common cytokine receptor gamma chain with IL-2, IL-4, IL-7, IL-9, and IL-15. IL-21 is expressed by CD4+ T cells, natural killer (NK) T cells, and Th17 cells, and the IL-21 receptor is highly expressed on CD4+ and CD8+ B cells, indeed, IL-21 plays a pivotal role in the survival and proliferation of B cells, and their differentiation to immunoglobulin (Ig) producing cells. IL-21 up-regulates and down-regulates the production of IgG1 and IgE by B cells, respectively, and diminishes the severity of allergy and asthma. In some case, IL-21 also induces the apoptosis of B cells. The other roles of IL-21 include regulation of innate immune systems, implication on autoimmunity, and antitumor actions.Recombinant human Interleukin-21 (rhIL-21) produced in E. coli is a single non-glycosylated polypeptide chain containing 132 amino acids. A fully biologically active molecule, rhIL-21 has a molecular mass of 15.4 kDa analyzed by reducing SDS-PAGE.
Synonyms: Za11 - 分子量
- 15.4 kDa, observed by reducing SDS-PAGE.
- 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
-