Cited by 63Protein Structure and DynamicsAdvanced Physical and Chemical Molecular InteractionsReceptor Mechanisms and Signaling

The allosteric communication pathways in KIX domain of CBP

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Palazzesi, Ferruccio, Barducci, Alessandro, Tollinger, Martin, Parrinello, Michele·2013·Proceedings of the National Academy of Sciences

Abstract

Allosteric regulation plays an important role in a myriad of biomacromolecular processes. Specifically, in a protein, the process of allostery refers to the transmission of a local perturbation, such as ligand binding, to a distant site. Decades after the discovery of this phenomenon, models built on static images of proteins are being reconsidered with the knowledge that protein dynamics plays an important role in its function. Molecular dynamics simulations are a valuable tool for studying complex biomolecular systems, providing an atomistic description of their structure and dynamics. Unfortunately, their predictive power has been limited by the complexity of the biomolecule free-energy surface and by the length of the allosteric timescale (in the order of milliseconds). In this work, we are able to probe the origins of the allosteric changes that transcription factor mixed lineage leukemia (MLL) causes to the interactions of KIX domain of CREB-binding protein (CBP) with phosphorylated kinase inducible domain (pKID), by combing all-atom molecular dynamics with enhanced sampling methods recently developed in our group. We discuss our results in relation to previous NMR studies. We also develop a general simulations protocol to study allosteric phenomena and many other biological processes that occur in the micro/milliseconds timescale.

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  • Metadynamics methods have been successfully applied to study free energy landscapes of flexible proteins, protein oligomers, peptide folding, ligand and selective ion permeation through membrane channels.

    “These methods alone, or in combination with high-resolution experimental techniques such as x-ray crystallography and NMR, have been successfully applied to the study of the free energy landscape of flexible proteins and protein oligomers,36,388–389 peptide folding,390–392 ligand and selective ion permeation through cell membrane protein channels.393”

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Authors
Palazzesi, F., Barducci, A., Tollinger, M., & Parrinello, M.
Affiliations
  • ETH Zurich (CH)
  • Universität Innsbruck (AT)
Venue
Proceedings of the National Academy of Sciences
Published
2013-08-12
Volume
110
Issue
35
Pages
14237-14242
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2031593809
Cited by
62
References
67
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 1 · 2020: 6 · 2019: 2 · 2018: 5 · 2017: 8 · 2016: 13 · 2015: 3 · 2014: 13 · 2013: 1
FWCI
4.48
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Advanced Physical and Chemical Molecular Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
allosteric communication, KIX domain, CREB-binding protein, MLL, protein-protein interaction, protein dynamics, allosteric regulation, enhanced sampling
MeSH terms
Allosteric Regulation, Models, Molecular, Phosphorylation, CREB-Binding Protein, Myeloid-Lymphoid Leukemia Protein, Molecular Dynamics Simulation

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