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. 2012 Sep 17;13(9):11643–11665. doi: 10.3390/ijms130911643

Figure 4.

Figure 4

Optimization of activity by decreasing substrate affinity in psychrophilic enzymes. Reaction profile for an enzyme-catalyzed reaction with Gibbs energy changes under saturating substrate concentration. Weak substrate binding (in blue) decreases the activation energy (ΔG#psychro) and thereby increases the reaction rate. In this scheme, the energy levels of E + S and of ES# are assumed to be similar [10].