Ab initio dynamics of the cytochrome P450 hydroxylation reaction
نویسندگان
چکیده
منابع مشابه
Ab-Initio Molecular Dynamics
Computer simulation methods, such as Monte Carlo or Molecular Dynamics, are very powerful computational techniques that provide detailed and essentially exact information on classical many-body problems. With the advent of ab-initio molecular dynamics, where the forces are computed on-the-fly by accurate electronic structure calculations, the scope of either method has been greatly extended. Th...
متن کاملAb initio Ehrenfest dynamics.
We present an ab initio direct Ehrenfest dynamics scheme using a three time-step integrator. The three different time steps are implemented with nuclear velocity Verlet, nuclear-position-coupled midpoint Fock integrator, and time-dependent Hartree-Fock with a modified midpoint and unitary transformation algorithm. The computational cost of the ab initio direct Ehrenfest dynamics presented here ...
متن کاملAb initio molecular dynamics.
In this chapter, an introduction to ab initio molecular dynamics (AIMD) has been given. Many of the basic concepts, like the Hellman-Feynman forces, the difference between the Car-Parrinello molecular dynamics and AIMD, have been explained. Also a very versatile AIMD code, the CP2K, has been introduced. On the application, the emphasis was on the aqueous systems and chemical reactions. The bioc...
متن کاملDirect ab initio dynamics studies of vibrational-state selected reaction rate of the OH1H2 ̃H1H2O reaction
We present direct ab initio dynamics studies of vibrational-state selected reaction rates of the OH1H2→H1H2O reaction. Rate constants for both the OH1H2~v51! and OH~v51!1H2 reactions were calculated based on a full variational transition state theory plus multidimensional semiclassical tunneling approximations within a statistical diabatic model. The potential energy surface information was cal...
متن کاملMechanisms of reaction in cytochrome P450: Hydroxylation of camphor in P450cam.
The fundamental nature of reactivity in cytochrome P450 enzymes is currently controversial. Modelling of bacterial P450cam has suggested an important role for the haem propionates in the catalysis, though this finding has been questioned. Understanding the mechanisms of this enzyme family is important both in terms of basic biochemistry and potentially in the prediction of drug metabolism. We h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2015
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.4907733