Supplier Page from Biorbyt for Recombinant Human Fibroblast Growth Factor 4
Biological Activity: Fully biologically active when compared to standard. The ED50 as determined by thymidine uptake assay using FGF-receptors transfected BaF3 cells is less than 0.5 ng/ml, corresponding to a specific activity of > 2.0 x106 IU/mg.