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. 1997 Oct 28;94(22):11905–11910. doi: 10.1073/pnas.94.22.11905

Figure 2.

Figure 2

Potential energy of entire system (including water) during the transition for the switch I region; the coordinate represents the root-mean-square (RMS) distance in Å from the target structure. One kilocalorie = 4.18 kJ.