The incorporation of quantum effects in enzyme kinetics modeling.
We present an overview of new procedures for including quantum mechanical effects in enzyme kinetics. Quantum effects are included in three ways: (1) The electronic structure of the atoms in the catalytic center is treated quantum mechanically in order to calculate a realistic potential energy surface for the bond rearrangement process. (2) The discrete nature of quantum mechanical vibrational energies is incorporated in the treatment of nuclear motion for computing the potential of mean force. (3) Multidimensional tunneling contributions are included. These procedures are illustrated by applications to proton abstractions catalyzed by enolase and methylamine dehydrogenase and hydride-transfer reactions by alcohol dehydrogenase and xylose isomerase.
Truhlar
Donald G
DG
Department of Chemistry and Supercomputer Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, USA. truhlar@umn.edu
Gao
Jiali
J
Alhambra
Cristobal
C
Garcia-Viloca
Mireia
M
Corchado
José
J
Sánchez
Maria Luz
ML
Villà
Jordi
J
D002384:Catalysis; D004798:Enzymes / Q000737:chemistry*; D007700:Kinetics; D008956:Models, Chemical; D009038:Motion; D011789:Quantum Theory
D004798:Enzymes