Predicting enzyme-substrate specificity with QM/MM methods: a case study of the stereospecificity of (D)-glucarate dehydratase

Autor: Suwen Zhao, Chakrapani Kalyanaraman, Boxue Tian, Matthew P. Jacobson, Leif A. Eriksson, Frank H. Wallrapp
Rok vydání: 2013
Předmět:
Models
Molecular

Protein Structure
Biochemistry & Molecular Biology
Stereochemistry
Adipates
molecular-dynamics
Chemical
Medical Biochemistry and Metabolomics
Molecular Dynamics Simulation
Biochemistry
Molecular mechanics
active-site
Article
Substrate Specificity
QM/MM
Medicinal and Biomolecular Chemistry
Glucaric Acid
Stereospecificity
Models
enolase superfamily
Glucarate dehydratase
Hydro-Lyases
chemistry.chemical_classification
Molecular Structure
Molecular
general acid catalyst
Stereoisomerism
d-galactonate dehydratase
computer-simulations
Transition state
Protein Structure
Tertiary

mandelate racemase enzyme
Enzyme
chemistry
Models
Chemical

Docking (molecular)
Dehydratase
escherichia-coli
Biocatalysis
Quantum Theory
Thermodynamics
Generic health relevance
Biochemistry and Cell Biology
unknown function
Tertiary
pseudomonas-putida
Protein Binding
Zdroj: Biochemistry, vol 52, iss 33
ISSN: 1520-4995
Popis: The stereo-specificity of D-glucarate dehydratase (GlucD) is explored by QM/MM calculations. Both the substrate binding and the chemical steps of GlucD contribute to substrate specificity. Although the identification of transition states remains computationally intensive, we suggest that QM/MM computations on ground states or intermediates can capture aspects of specificity that cannot be obtained using docking or molecular mechanics methods.
Databáze: OpenAIRE