Figure 8
Calculated activation free energies for the alkylation and hydrolysis steps in the StEH1-catalyzed hydrolysis of 1a bound in the preferred of the two binding modes shown in Fig. 2. All values are averages and standard errors of the mean (shown as error bars) over 30 individual trajectories. Shown here are the reactions catalyzed by wild-type StEH1 (a, b) and R-C1 (c, d) for the (R,R)-enantiomer (a, c) and the (S,S)-enantiomer (b, d). The experimentally observed regioselectivies are indicated for each system (see Table 1). The corresponding raw data are shown in Table 3 and the full free-energy profiles for the preferred binding modes are shown in Fig. 7. |