Cited by 311Protein Structure and DynamicsEnzyme Catalysis and ImmobilizationEnzyme Structure and Function

The role of protein dynamics in the evolution of new enzyme function

Campbell, Eleanor, Kaltenbach, Miriam, Correy, Galen J, Carr, Paul D, Porebski, Benjamin T, Livingstone, Emma K, Afriat-Jurnou, Livnat, Buckle, Ashley M +4 more·2016·Nature Chemical Biology

Abstract

Enzymes must be ordered to allow the stabilization of transition states by their active sites, yet dynamic enough to adopt alternative conformations suited to other steps in their catalytic cycles. The biophysical principles that determine how specific protein dynamics evolve and how remote mutations affect catalytic activity are poorly understood. Here we examine a 'molecular fossil record' that was recently obtained during the laboratory evolution of a phosphotriesterase from Pseudomonas diminuta to an arylesterase. Analysis of the structures and dynamics of nine protein variants along this trajectory, and three rationally designed variants, reveals cycles of structural destabilization and repair, evolutionary pressure to 'freeze out' unproductive motions and sampling of distinct conformations with specific catalytic properties in bi-functional intermediates. This work establishes that changes to the conformational landscapes of proteins are an essential aspect of molecular evolution and that change in function can be achieved through enrichment of preexisting conformational sub-states.

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Crossref · 10.1038/nchembio.2175

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  • Dynamic interconversion between multiple conformations underpins the functions of integral membrane proteins in all domains of life.

    “Dynamic interconversion between multiple conformations underpins the functions of integral membrane proteins in all domains of life (Campbell et al., 2016; Cournia et al., 2015; Shaw et al., 2010; Boehr et al., 2009).”

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Authors
Campbell, E., Kaltenbach, M., Correy, G. J., Carr, P. D., Porebski, B. T., Livingstone, E. K., Afriat-Jurnou, L., Buckle, A. M., Weik, M., Hollfelder, F., Tokuriki, N., & Jackson, C. J.
Affiliations
  • Australian National University (AU)
  • University of British Columbia (CA)
  • Monash University (AU)
  • Centre National de la Recherche Scientifique (FR)
  • University of Cambridge (GB)
Corresponding author
  • Tokuriki, Nobuhiko
  • Jackson, Colin J
Venue
Nature Chemical Biology
Published
2016-09-12
Volume
12
Issue
11
Pages
944-950
ISSN
  • 1552-4450 (ISSN-L)
  • 1552-4469
OpenAlex
W2520187496
Cited by
311
References
61
Citations by year
2026: 15 · 2025: 28 · 2024: 36 · 2023: 43 · 2022: 30 · 2021: 30 · 2020: 38 · 2019: 31 · 2018: 34 · 2017: 21 · 2016: 5
FWCI
15.76
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Chemical Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
Keywords
protein dynamics, enzyme evolution, phosphotriesterase, arylesterase, Pseudomonas diminuta, directed protein evolution, conformational landscape, transition state stabilization, rational protein design
MeSH terms
Carboxylic Ester Hydrolases, Protein Conformation, Pseudomonas, Evolution, Molecular, Phosphoric Triester Hydrolases, Biocatalysis

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