Quantum Chemical and QM/MM Models in Biochemistry

Patricia Saura, Michael Röpke, Ana P. Gamiz-Hernandez, Ville R.I. Kaila

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Scopus citations

Abstract

Quantum chemical (QC) calculations provide a basis for deriving a microscopic understanding of enzymes and photobiological systems. Here we describe how QC models can be used to explore the electronic structure, dynamics, and energetics of biomolecules. We introduce the hybrid quantum mechanics/classical mechanics (QM/MM) approach, where a quantum mechanically described system of interest is embedded in a classically described force field representation of the biochemical surroundings. We also discuss the QM cluster model approach, as well as embedding theories, that provide complementary methodologies to model quantum mechanical effects in biomolecules. The chapter also provides some practical guides for building quantum biochemical models using the quinone reduction catalysis in respiratory complex I and a model reaction in solution as examples.

Original languageEnglish
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages75-104
Number of pages30
DOIs
StatePublished - 2019

Publication series

NameMethods in Molecular Biology
Volume2022
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Keywords

  • Bioenergetics
  • DFT
  • Enzyme catalysis
  • Oxidoreductase
  • Photobiology
  • Proton transfer
  • QM cluster models
  • Quantum biochemistry

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