Radial distribution function g(R) of water oxygens around GMP/GDP (left panel), ATP/ADP (middle panel), and protein (right panel). OGMP, CGMP, CGMP, ATP, and CGDP, ADP simulation data is shown. The distance (in Å) shown on the x axis is measured between the center of mass of the molecule of interest (substrate, product, or protein) and water oxygen atoms. (Dotted lines on the right panel) Cumulative number of water molecules.