Figure 3

Chemical structures. (a) PPPy structure indicating the length. (b) Cilengitide structures: cyclic peptide and lineal RGD. The lengths were determined with the Maestro program21.

Chemical structures. (a) PPPy structure indicating the length. (b) Cilengitide structures: cyclic peptide and lineal RGD. The lengths were determined with the Maestro program21.