Name Human interleukin 6 (IL-6) Description Recombinant human IL-6 produced in E.coli is a single, non-glycosylated, polypeptide chain containing 184 amino acids, having a predicted molecular mass of approximately 20.9 kDa. Source E. coli Activity Measured in a cell proliferation assay using B9-11; the specific activity shall be not less than 1×107IU/mg. Purity ≥ 97% (by SDS-PAGE and HPLC) Endotoxin ≤1 EU per mg of purified protein by LAL test Size 10 µg |