IL4 Protein LS-G16748 is Recombinant Human IL4 in E. coli It is biologically active
Interleukin-4 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 130 amino acids and having a molecular mass of 15000 Dalton. The IL-4 is purified by proprietary chromatographic techniques.
Greater than 97% by SDS-PAGE and RP-HPLC
The ED50 as determined by the dose-dependent stimulation of TF-1 cells is < 0.2 ng/ml, corresponding to a Specific Activity of 5,000,000 IU/mg.
Lyophilized from PBS, pH 7.4
Store at -20°C. Store at 4°C after reconstitution between 2-7 days. Carrier protein recommended for long term storage or low concentration. Avoid multiple freeze-thaw cycles.
For research use only.