产品介绍
| Name Human interleukin 21 (IL-21) Description Recombinant human IL-21 produced in E.coli is a single, non-glycosylated, polypeptide chain containing 133 amino acids, two pairs of disulfide bonds and having a molecular mass of approximately 15.5 kDa. Source E. coli Activity Measured in a cell proliferation assay using B9-11 cells. the ED50 for this effect is typically 50-350 ng/ml. Size 10 µg |