Cited by 78Signaling Pathways in DiseaseProtein Structure and DynamicsComputational Drug Discovery Methods

Two pathways mediate interdomain allosteric regulation in pin1

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Guo, Jingjing, Pang, Xiaodong, Zhou, Huan-Xiang·2015·Structure

Abstract

Allostery is an essential means for regulating biomolecular functions and provides unique opportunities for drug design, yet our ability to elucidate allosteric mechanisms remains limited. Here, based on extensive molecular dynamics simulations, we present an atomistic picture of the pathways mediating the allosteric regulation of the PPIase domain of Pin1 by its WW domain. Two pathways jointly propagate the action of substrate-WW binding to produce closure and rigidification of three PPIase catalytic-site loops. One pathway preexists in the apo protein, but remains dormant until substrate-WW binding completes the second. The reduction in conformational entropy and preorganization of the catalytic-site loops observed here may explain why substrate-WW binding enhances ligand affinity and catalytic activity of the PPIase domain and suggest a combination drug therapy for Pin1-related diseases. Whereas the traditional view of allostery has emphasized conformational transition, our study identifies a distinct role of conformational dynamics in eliciting allostery.

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  • Even in a highly structured protein, "communication" between sites is likely mediated by multiple paths.

    “Since even in a highly structured protein “communication” between sites is likely mediated by multiple paths (Guo et al., 2015; Taylor et al., 2016), the questions of whether a given path can be rigorously validated against experimental data, or whether its specific role can be rationalized, need to be critically evaluated.”

    From Allostery in Its Many Disguises: From Theory to Applications (2019) · cites this paper as Guo et al., 2015

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Authors
Guo, J., Pang, X., & Zhou, H.-X.
Affiliations
Florida State University (US)
Corresponding author
Zhou, Huan-Xiang
Venue
Structure
Publisher
Elsevier BV
Published
2015-01
Volume
23
Issue
1
Pages
237-247
ISSN
0969-2126 (ISSN-L)
OpenAlex
W1983871031
Cited by
78
References
50
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 4 · 2022: 10 · 2021: 3 · 2020: 7 · 2019: 9 · 2018: 10 · 2017: 3 · 2016: 13 · 2015: 8
FWCI
3.28
Type
journal article
Language
en
Open access
Locations
  • Structure (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Lanzhou University Institutional Repository (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of General Medical Sciences (GM 58187, R01GM058187)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
Keywords
Pin1, allosteric regulation, PPIase domain, WW domain, conformational entropy, conformational dynamics, ligand binding affinity, catalytic activity, drug design
MeSH terms
NIMA-Interacting Peptidylprolyl Isomerase, Allosteric Regulation, Binding Sites, Humans, Models, Molecular, Protein Binding, Drug Design, Protein Structure, Secondary, Protein Structure, Tertiary, Protein Folding, Peptidylprolyl Isomerase, Amino Acid Substitution, Catalytic Domain, Protein Structure, Quaternary, Molecular Dynamics Simulation

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