Cited by 902Protein Structure and DynamicsEnzyme Structure and FunctionComputational Drug Discovery Methods

Distance-scaled, finite ideal-gas reference state improves structure-derived potentials of mean force for structure selection and stability prediction

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Zhou, Hongyi, Zhou, Yaoqi·2002·Protein Science

Abstract

The distance-dependent structure-derived potentials developed so far all employed a reference state that can be characterized as a residue (atom)-averaged state. Here, we establish a new reference state called the distance-scaled, finite ideal-gas reference (DFIRE) state. The reference state is used to construct a residue-specific all-atom potential of mean force from a database of 1011 nonhomologous (less than 30% homology) protein structures with resolution less than 2 A. The new all-atom potential recognizes more native proteins from 32 multiple decoy sets, and raises an average Z-score by 1.4 units more than two previously developed, residue-specific, all-atom knowledge-based potentials. When only backbone and C(beta) atoms are used in scoring, the performance of the DFIRE-based potential, although is worse than that of the all-atom version, is comparable to those of the previously developed potentials on the all-atom level. In addition, the DFIRE-based all-atom potential provides the most accurate prediction of the stabilities of 895 mutants among three knowledge-based all-atom potentials. Comparison with several physical-based potentials is made.

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Authors
Zhou, H., & Zhou, Y.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Zhou, Yaoqi
Venue
Protein Science
Publisher
Wiley
Published
2002-11
Volume
11
Issue
11
Pages
2714-2726
ISSN
  • 0961-8368 (ISSN-L)
  • 1469-896X
OpenAlex
W2125677968
Cited by
902
References
62
Citations by year
2026: 10 · 2025: 15 · 2024: 15 · 2023: 23 · 2022: 20 · 2021: 34 · 2020: 34 · 2019: 44 · 2018: 40 · 2017: 48 · 2016: 37 · 2015: 45 · 2014: 64 · 2013: 64 · 2012: 49
FWCI
5.58
Type
journal article
Language
en
Open access
Locations
  • Protein Science (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • State University of New York
  • University at Buffalo
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
knowledge-based potentials, protein structure prediction, protein stability prediction, protein mutants, protein structure database
MeSH terms
Mathematics, Models, Theoretical, Protein Conformation, Proteins, Statistics as Topic, Thermodynamics, Protein Folding, Computational Biology

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