Cited by 273Protein Structure and DynamicsEnzyme Structure and FunctionComputational Drug Discovery Methods

Coupling between Catalytic Site and Collective Dynamics: A Requirement for Mechanochemical Activity of Enzymes

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Yang, Lee-Wei, Bahar, Ivet·2005·Structure

Abstract

Growing evidence supports the view that enzymatic activity results from a subtle interplay between chemical kinetics and molecular motions. A systematic analysis is performed here to delineate the type and level of coupling between catalysis and conformational mechanics. The dynamics of a set of 98 enzymes representative of different EC classes are analyzed with the Gaussian network model (GNM) and compared with experimental data. In more than 70% of the examined enzymes, the global hinge centers predicted by the GNM are found to be colocalized with the catalytic sites experimentally identified. Low translational mobility (< 7%) is observed for the catalytic residues, consistent with the fine-tuned design of enzymes to achieve precise mechanochemical activities. Ligand binding sites, while closely neighboring catalytic sites, enjoy a moderate flexibility to accommodate the ligand binding. These findings could serve as additional criteria for assessing drug binding residues and could lessen the computational burden of substrate docking searches.

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Crossref · 10.1016/j.str.2005.03.015

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Authors
Yang, L.-W., & Bahar, I.
Affiliations
University of Pittsburgh (US)
Venue
Structure
Publisher
Elsevier BV
Published
2005-06
Volume
13
Issue
6
Pages
893-904
ISSN
0969-2126 (ISSN-L)
OpenAlex
W2160975112
Cited by
273
References
78
Citations by year
2026: 5 · 2025: 6 · 2024: 12 · 2023: 10 · 2022: 8 · 2021: 10 · 2020: 7 · 2019: 12 · 2018: 9 · 2017: 13 · 2016: 15 · 2015: 8 · 2014: 21 · 2013: 11 · 2012: 15
FWCI
8.16
Type
journal article
Language
en
Open access
Locations
  • Structure (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation (0225636)
  • National Institutes of Health (1R01LM007994-01A1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
Keywords
enzyme active site, mechanochemistry, Gaussian network model, ligand binding sites, protein flexibility, substrate docking
MeSH terms
Binding Sites, Catalysis, Computer Simulation, Enzyme Stability, Enzymes, Ligands, Models, Molecular, Motion, Protein Binding, Protein Conformation, Substrate Specificity, Thermodynamics, Computational Biology

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