Fig. 5. V1 can abolish VEGF binding to KDR. Various concentrations of VEGF (A) or of V1 peptide (B) were tested in competition with radioactively labeled VEGF for binding to CHO–KDR cells. As an uninhibitory control, V5 was tested in the same conditions. Data represent the mean and standard deviations of triplicate samples. Similar results were obtained in two different experiments.