- ￥600 - 16800
- 上海经科
- 中国
- JK7694
- 2026年05月21日
企业认证
相关产品推荐更多 >
![重组蛋白 HLA-A & B2M & PRAME (ALYVDSLFFL) Monomer [Biotin] 人 His Avi Biotin](https://img1.dxycdn.com/p/s14/2026/0615/826/6754018383345236602.png!wh200)
万千商家帮你免费找货
0 人在求购买到急需产品
- 详细信息
- 文献和实验
- 技术资料
- 保存条件：
-20℃
- 保质期：
3 months at -20°C
- 英文名：
IL-21, Human
- 库存：
现货
- 供应商：
上海经科化学科技有限公司
- 规格：
10μg/50μg/1mg
| 规格： | 10μg | 产品价格： | ￥600.0 |
|---|---|---|---|
| 规格： | 50μg | 产品价格： | ￥2200.0 |
| 规格： | 1mg | 产品价格： | ￥16800.0 |
| Species | Human | |
| Protein Construction |
Expressed with an N-terminal Met.
|
|
| Purity | > 95% as analyzed by SDS-PAGE | |
| Endotoxin Level | < 0.2 EU/μg of protein by gel clotting method | |
| Biological Activity | ED50≤ 3.0 ng/ml, measured by its ability to enhance IFN-gamma secretion in NK-92 human natural killer lymphoma cells. | |
| Expression System | E. coli | |
| Apparent Molecular Weight | ~15.4 kDa, on SDS-PAGE under reducing conditions. | |
| Formulation | Lyophilized after extensive dialysis against PBS. | |
| Reconstitution | It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH₂O up to 100 μg/ml. | |
| Storage & Stability | Upon receiving, this product remains stable for 6 months at lower than -70°C. Upon reconstitution, the product should be stable for 1 week at 4°C or for 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles. |
| Target Background | Interleukin-21 (IL-21) belongs to the Type I four helix bundle cytokines, and shares the common cytokine receptor γ 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. |
| Synonyms | IL21; CVID11; IL-21; Za11; interleukin 21 |
产品特点：
1. 【人源天然序列】采用人源 HRG1-1 天然氨基酸序列，无突变，与体内天然蛋白结构完全一致，可特异性结合 HRG1-1 配体2. 【高活性高特异性】可特异性结合 HRG1-1 抗体，ED₅₀ < 100 ng/mL（抗体结合实验），可被 HRG1-1 特异性抗体识别，适用于抗体筛选、抗原检测3. 【高纯度低内毒素】SDS-PAGE 纯度 > 95%，内毒素 < 0.2 EU/μg（LAL 法），适配细胞培养、体内动物实验等敏感场景需求4. 【易纯化检测】哺乳动物细胞表达，可通过亲和层析快速纯化，也可通过 HRG1-1 特异性抗体进行检测5. 【稳定易保存】蛋白储存液配方优化，未开封 - 80℃可稳定保存 12 个月，-20℃可存 6 个月，避免反复冻融可长期保持蛋白活性6. 【多场景适配】可用于 HRG1-1 蛋白结构与功能研究、细胞培养添加剂、抗体制备与筛选、药物靶点验证等
HRG1-1, 人源，人，重组蛋白，重组，高活性，高纯度，低内毒素，细胞培养，科研实验，哺乳动物细胞表达，Human,HRG1-1,Recombinant protein,High activity,High purity,Low endotoxin,Cell culture,Mammalian expression
风险提示：丁香通仅作为第三方平台，为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全，合理判断，谨慎选购商品，商家和用户对交易行为负责。对于医疗器械类产品，请先查证核实企业经营资质和医疗器械产品注册证情况。
文献和实验Human IL-2 Enzyme Immunoassay (EIA)
Increased division and maturation of activated helper T cells Stimulation of neutrophils Stimulus for the secretion of interferon-( and tumor necrosis factors - aphla and - Beta from peripheral mononuclear cells. The Endogen Human IL-
Evaluation of IL-2-Withdrawal-Induced Apoptosis in Human T Lymphocytes
pathway of lymphocyte apoptosis triggered by starvation for IL-2 or other survival cytokines.
我们知道，PeproTech的所有细胞因子和蛋白均为冻干粉，这使得运输非常便捷，只要常温即可。而且，细胞因子和蛋白冻干粉非常稳定，在-20℃或-80℃条件下可保存数年。冻干粉在使用前需进行溶解，然后以液体形式加到培养体系或注射入动物体内。溶解步骤非常关键，因溶解不好会导致细胞因子或蛋白的失活，这也是很多用户在实际使用中经常遇到的问题。 那么，应该如何进行正确的溶解呢？ 下面我们以Recombinant Human IL-4 (重组人IL-4，产品编号：200-04)的说明书为例
技术资料暂无技术资料 索取技术资料
