Examples
of hydration sites derived from MD simulations and comparison
to crystal waters for three protein–ligand complexes. Hydration
sites derived in the presence (A-C) and absence (D-F) of the ligands
are shown for muscle glycogen phosphorylase (A, D), heat shock protein
90-alpha (B, E), and glutamate receptor ionotropic, AMPA 2 (C, F).
In (D-F), the cocrystallized ligands are shown, but they were not
included in the MD simulations. Hydration sites and crystal waters
are shown as transparent green and red spheres, respectively. The
proteins are shown as gray cartoons, and the cocrystallized ligands
are depicted in sticks.