1. Immobilized Human IL-6 at 2 μg/mL (100 μL/well) can bind Human IL-6R hFc, the EC50 of Human IL-6R hFc is 3.0-10.0 ng/mL. 2. Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 0.1-0.8 ng/mL. 3. Loaded Recombinant Human IL-6R Protein, His Tag on His1K Biosensor, can bind Recombinant Human IL-6 Protein, no Tag with an affinity constant of 0.165 µM as determined in BLI assay.

IL-6 Protein, Human, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 20.95 kDa and the accession number is P05231.

Human

E. coli

≥ 95 % as determined by SDS-PAGE

Interleukin-6 (IL-6) is a multifunctional α-helical cytokine that regulates cell growth and differentiation of various tissues, which is known particularly for its role in the immune response and acute phase reactions. IL-6 protein is secreted by a variety of cell types including T cells and macrophages as a phosphorylated and variably glycosylated molecule. It exerts actions through its heterodimeric receptor composed of IL-6R that lacks the tyrosine/kinase domain and binds IL-6 with low affinity, and ubiquitously expressed glycoprotein 130 (gp130) that binds the IL-6. IL-6R complex with high affinity and thus transduces signals. IL-6 is also involved in hematopoiesis, bone metabolism, and cancer progression, and has been defined as an essential role in directing the transition from innate to acquired immunity.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy