Biological Activity:Fully biologically active when compared to standard. The ED50 as determined by the dose-dependent stimulation of IL-8 production by human PBMC is less than 5-10 ng/ml.
Purity:> 95 % by SDS-PAGE and HPLC analyses.
Formulation:Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.0.