The dimeric structure of YpHPPK•MgAMPCPP•HP. (Blaszczyk, Li, Cherry, Alexandratos, Wu, Shaw, Tropea, Waugh, Yan, and Ji. Acta Crystallogr. 2007; D63:1169-1177. Abstract). Surface representation of the dimer. One subunit is shown as a solid surface and the partner subunit as a mesh surface with enclosed ribbon diagram for the subunit. The ligands are illustrated as van der Waals spheres in atomic color scheme (carbon in black, nitrogen in blue, oxygen in red, phosphorous in yellow, and magnesium in purple).