中文 | English
订货电话
400-1683301
800-8283301
电话订货时间:
工作日9:00-17:00
订货邮件
order@beyotime.com
订货QQ
4001683301
微信在线咨询
订单下载
碧云天订单.xls
多肽与蛋白> 重组蛋白> 细胞因子
Recombinant Human IL-21
产品编号: P5223-1mg
产品包装:1mg
选择包装
价格: ¥ 34065.00
产品简介
使用说明
产品文件
相关产品
相关论文
产品问答
产品编号 产品名称 产品包装 产品价格
P5223-10μg Recombinant Human IL-21 10μg 1671.00元
P5223-100μg Recombinant Human IL-21 100μg 10650.00元
P5223-1mg Recombinant Human IL-21 1mg 34065.00元
Species Gene ID Accession Source Length MW Tag
Human 59067 Q9HBE4 E. coli 133aa 15.4kDa
About this protein
Name Recombinant Human IL-21 (Recombinant Human Interleukin-21; rHuIL-21);重组人白细胞介素21
Synonyms CVID11; IL-21; Za11
Purity >97% by SDS-PAGE and HPLC analyses.
Biological Activity Fully biologically active when compared to standard. The ED50 as determined by by a cell proliferation assay using human N1186 T cells is less than 20ng/ml, corresponding to a specific activity of >5.0×104IU/mg.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH7.4.
Endotoxin Less than 1EU/μg of rHuIL-21 as determined by LAL method.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
Category Cytokine
Background Human IL-21 is encoded by IL-21 gene located on Chr. 4. It is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation and can regulating immune system cells, for instance cytotoxin T cells and natural killer cells. Additionally, it can induce target cells division or proliferation. IL-21 elicits its effect through binding to IL-21R, which also contains the gamma chain found in other cytokine receptors such as IL-2, IL-4, IL-7, IL-9 and IL-15. 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. IL-21 shows having much relation with clinical illnesses, including cancer immunotherapy, viral infections and allergies.
Amino Acid Sequence QGQDRHMIRM RQLIDIVDQL KNYVNDLVPE FLPAPEDVET NCEWSAFSCF QKAQLKSANT GNNERIINVS IKKLKRKPPS TNAGRRQKHR LTCPSCDSYE KKPPKEFLER FKSLLQKMIH QHLSSRTHGS EDS

包装清单:

产品编号 产品名称 包装
P5223-2μg Recombinant Human IL-21 2μg
P5223-10μg Recombinant Human IL-21 10μg
P5223-100μg Recombinant Human IL-21 100μg
P5223-1mg Recombinant Human IL-21 1mg
- 说明书 1份

保存条件:
-20℃或更低温度保存,至少一年有效。由于蛋白的每次冻融均会引起部分失活,所以首次配制成相应浓度的储存液后(请根据产品简介中Reconstitution一栏的信息配制储存液),须分装后-20℃或更低温度冻存,以避免反复冻融。
注意事项:
由于有些塑料管壁对某些蛋白有较强的吸附作用,溶液中的蛋白很容易粘附在管壁上,并且粘附后的蛋白很难与管壁分离。而载体蛋白(Carrier protein,如0.1% BSA等)的主要作用是预先封闭塑料管壁上的蛋白结合位点,使细胞因子或重组蛋白不会粘附于管壁。所以一定要使用产品简介中Reconstitution一栏的信息配制储存液。
本产品仅限于专业人员的科学研究用,不得用于临床诊断或治疗,不得用于食品或药品,不得存放于普通住宅内。
为了您的安全和健康,请穿实验服并戴一次性手套操作。

使用说明:
1. 收到产品后请立即按照说明书推荐的条件保存。除非特别注明,碧云天相关产品均为冻干粉,由于微量的蛋白在冻干过程中沉积在管内,形成很薄或不可见的蛋白层,所以在打开管盖前,我们建议在离心机中约8,000-12,000g离心10-30秒,使附着在管盖或管壁上的蛋白聚集于管底。
2. 请根据实验目的并按照产品简介中Reconstitution一栏中的信息配制储存液。大多数细胞因子或重组蛋白的冻干粉是非常容易溶解的,一般用移液枪的枪头轻吹几下或者轻轻摇晃瓶子,即可使细胞因子或重组蛋白完全溶解。请勿用vortex剧烈振荡,以免蛋白变性而失活。
3. 具体的最佳工作浓度请自行参考相关文献,或者根据实验目的,以及特定细胞和动物,通过实验进行摸索和优化。

物质安全数据单
输入右侧验证码点击下载:
更换校验码
质检证书
输入批号搜寻COA
搜索
相关产品请点击如下按钮:
使用本产品的文献:
购物车
会员
顶部