Cited by 203Protein Structure and DynamicsReceptor Mechanisms and SignalingEnzyme Structure and Function

Allostery without a conformational change? Revisiting the paradigm

Nussinov, Ruth, Tsai, Chung-Jung·2015·Current Opinion in Structural Biology

Abstract

Classically, allostery induces a functional switch through a conformational change. However, lately an increasing number of studies concluded that the allostery they observe takes place through sheer dynamics. Here we explain that even if a structural comparison between the active and inactive states does not detect a conformational change, it does not mean that there is no conformational change. We list likely reasons for this lack of observation, including crystallization conditions and crystal effects; one of the states is disordered; the structural comparisons disregard the quaternary protein structure; overlooking synergy effects among allosteric effectors and graded incremental switches and too short molecular dynamics simulations. Specific functions are performed by distinct conformations; they emerge through specific interactions between conformationally selected states.

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Crossref · 10.1016/j.sbi.2014.11.005

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  • AlphaFold, which predicts single ranked structures for a protein sequence, is unable to address directly allosteric mechanisms, which are based on populations of conformational states in ensembles.

    “AlphaFold, which predicts single ranked structures for a protein sequence, is unable to address directly allosteric mechanisms, which are based on the populations of conformational states in the ensembles.”

    From AlphaFold, Artificial Intelligence (AI), and Allostery (2022) · cites this paper as [104]

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Authors
Nussinov, R., & Tsai, C.-J.
Affiliations
  • Tel Aviv University (IL)
  • Frederick National Laboratory for Cancer Research (US)
Corresponding author
Nussinov, Ruth
Venue
Current Opinion in Structural Biology
Publisher
Elsevier BV
Published
2015-02
Volume
30
Pages
17-24
ISSN
0959-440X (ISSN-L)
OpenAlex
W2035586950
Cited by
202
References
65
Citations by year
2026: 6 · 2025: 11 · 2024: 9 · 2023: 18 · 2022: 14 · 2021: 19 · 2020: 13 · 2019: 26 · 2018: 15 · 2017: 27 · 2016: 37 · 2015: 7
FWCI
2.23
Type
journal article
Language
en
Open access
closed
Locations
  • Current Opinion in Structural Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
Keywords
allosteric regulation, conformational change, protein dynamics, allosteric effectors, quaternary structure, protein disorder, functional switch, protein conformational states
MeSH terms
Allosteric Regulation, Crystallization, Models, Biological, Models, Molecular, Protein Conformation, Molecular Dynamics Simulation

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