Recombinant Human IL-4 Protein

BLI: Loaded Cynomolgus IL-4RA-His (Cat#orb2994860) on HIS1K Biosensor, can bind Human IL-4 (Cat#orb3002477) with an affinity constant of 0.33 nM as determined in BLI assay. Loaded Cynomolgus IL-4RA-Fc (Cat#orb2993918) on Protein A Biosensor, can bind Human IL-4 (Cat#orb3002477) with an affinity constant of 0.54 nM as determined in BLI assay. Loaded Human IL-4RA-His (Cat#orb2994200) on HIS1K Biosensor, can bind Human IL-4 (Cat#orb3002477) with an affinity constant of 0.48 nM as determined in BLI assay. Loaded Human IL-4RA-Fc (Cat#orb2994196) on Protein A Biosensor, can bind Human IL-4 (Cat#orb3002477) with an affinity constant of 0.99 nM as determined in BLI assay. . Cell Based Assay: Measured in a cell proliferation assay using TF‐1 human erythroleukemic cells. The ED50 for this effect is 0.01-0.05 ng/ml. (QC verified)

Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.