人IL-21/Interleukin-21蛋白

货号：	YB10584
供应商：	上海钰博
数量：	1000
保质期：	6个月
保存条件：	-20℃

人IL-21/Interleukin-21蛋白
产品信息
别称：
IL-21, Za11
蛋白构建：
A DNA sequence encoding the mature form of human IL-21 isoform 1 (Q9HBE4-1) (Gln 23-Ser 155) was expressed and purified, with an initial Met.
种属：
Human
表达宿主：
E. coli
产品状态&运输说明：
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
 
人IL-21/Interleukin-21蛋白 
质控检测
纯度：
> 92% as determined by SDS-PAGE.
生物活性：
1. Measured by its ability to bind human IL-21R in a functional ELISA.
2. Measured by its ability to induced Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The ED50 for this effect is typically 0.4-2 ng/ml.
内毒素：
Please contact us for more information.
稳定性：
Samples are stable for up to twelve months from date of receipt at -70℃
预测N端：
Met
人IL-21/Interleukin-21蛋白分子量：
The recombinant human IL-21 consisting of 134 amino acids and has a calculated molecular mass of 15.6 kDa. It migrates as an approximately 17 kDa band in SDS-PAGE under reducing conditions.
缓冲液：
Lyophilized from sterile 20mM NaAc, 150mM NaCl, pH 5.5
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
 
人IL-21/Interleukin-21蛋白 
使用指导
储存方法：
Store it under sterile conditions at -70℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
复溶条件：
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
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