人 IL21蛋白|IL21 protein|IL21(Human, Native)（产品说明）
蛋白名称：IL21蛋白, IL21 protein
蛋白构建：A DNA sequence encoding the mature form of human IL21 isoform 1 (Q9HBE4-1) (Gln23-Ser155) was expressed and purified with an initial Met.
表达宿主：E. coli
蛋白纯度：> 95 % as determined by SDS-PAGE
蛋白活性：Measured by its ability to induced Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The ED50 for this effect is 0.4-2 ng/mL.
蛋白内毒素：< 0.01 EU per μg of the protein as determined by the LAL method
预测N端：Met
蛋白分子量：The recombinant human IL-21 consists of 134 amino acids and has a calculated molecular mass of 15.6 kDa.
蛋白NP号：Q9HBE4-1
蛋白氨基酸序列：Gln23-Ser155
蛋白标签：Native
蛋白保存条件：Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.