Crystal structures. Structures with soaked in AGDV and AGDV-NH2 determined here (C–E and G–I) are compared with previously determined structures (A, B, F, and J) (3, 4). Residues of the αIIb and β3-subunits are shown with wheat and cyan carbons, respectively. MIDAS and ADMIDAS metals are shown as gray and yellow spheres, respectively. Smaller red spheres represent water molecules. Black dashes represent hydrogen bonds and metal ion coordinations.