Joint Use of Bonding Evolution Theory and QM/MM Hybrid Method for Understanding the Hydrogen Abstraction Mechanism via Cytochrome P450 Aromatase
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Altres documents de l'autoria: Viciano Gonzalo, Ignacio; González Navarrete, Patricio; Andres, Juan; Martí Forés, Sergio
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10.1021/ct501030q |
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Joint Use of Bonding Evolution Theory and QM/MM Hybrid Method for Understanding the Hydrogen Abstraction Mechanism via Cytochrome P450 AromataseData de publicació
2015-02Editor
Copyright © 2015 American Chemical SocietyISSN
1549-9618Cita bibliogràfica
VICIANO, Ignacio, et al. Joint Use of Bonding Evolution Theory and QM/MM Hybrid Method for Understanding the Hydrogen Abstraction Mechanism via Cytochrome P450 Aromatase. Journal of chemical theory and computation, 2015, 11.4: 1470-1480.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.acs.org/doi/abs/10.1021/ct501030qResum
Bonding evolution theory (BET), as a combination of the electron localization function (ELF) and Thom’s catastrophe theory (CT), has been coupled with quantum mechanics/molecular mechanics (QM/MM) method in order to ... [+]
Bonding evolution theory (BET), as a combination of the electron localization function (ELF) and Thom’s catastrophe theory (CT), has been coupled with quantum mechanics/molecular mechanics (QM/MM) method in order to study biochemical reaction paths. The evolution of the bond breaking/forming processes and electron pair rearrangements in an inhomogeneous dynamic environment provided by the enzyme has been elucidated. The proposed methodology is applied in an enzymatic system in order to clarify the reaction mechanism for the hydrogen abstraction of the androstenedione (ASD) substrate catalyzed by the cytochrome P450 aromatase enzyme. The use of a QM/MM Hamiltonian allows inclusion of the polarization of the charges derived from the amino acid residues in the wave function, providing a more accurate and realistic description of the chemical process. The hydrogen abstraction step is found to have five different ELF structural stability domains, whereas the C–H breaking and O–H forming bond process rearrangements are taking place in an asynchronous way. [-]
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Journal of chemical theory and computation, 2015, 11 (4), pp 1470–1480Drets d'accés
Copyright © 2015 American Chemical Society
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