Cited by 315Protein Structure and DynamicsEnzyme Catalysis and ImmobilizationRNA and protein synthesis mechanisms

An evolution-based model for designing chorismate mutase enzymes

Russ, William P., Figliuzzi, Matteo, Stocker, Christian, Barrat-Charlaix, Pierre, Socolich, Michael, Kast, Peter, Hilvert, Donald, Monasson, Remi +3 more·2020·Science

Abstract

Learning from evolution: Protein sequences contain information specifying their three-dimensional structure and function, and statistical analysis of families of sequences has been used to predict these properties. Building from sequence data, Russ et al. used statistical models that take into account conservation at amino acid positions and correlations in the evolution of pairs of amino acids to predict new artificial sequences that will have the properties of the protein family. For the chorismate mutase family of metabolic enzymes, the authors demonstrate experimentally that the artificial sequences display natural-like catalytic function. Because the models access an enormous space of diverse sequences, such evolution-based statistical approaches may guide the search for functional proteins with altered chemical activities. Science , this issue p. 440

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Crossref · 10.1126/science.aba3304

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  • The model learned evolutionary conservation patterns without being trained on explicit alignment information.

    “This indicates that the model has captured evolutionary conservation patterns without training on explicit alignment information such as with Potts models51, as implemented in direct coupling analysis7,52–55.”
  • No bmDCA artificial protein showed detectable lysozyme functionality.

    “None of the bmDCA artificial proteins exhibited a detectable level of functionality, Fig. S10”
  • bmDCA could not fit three of the five lysozyme families and gave detectable expression for 30 of 50 proteins in the remaining two.

    “bmDCA was unable to fit three out of the five lysozyme families, and exhibited 60% detectable expression (30/50 proteins) for the remaining two protein families.”
  • ProGen's model likelihoods align better with experimental assay data for CM and MDH than the original family-specific generation methods.

    “In sum, ProGen’s model likelihoods are better aligned with experimentally-measured assay data on two diverse protein datasets—chorismate mutase and malate dehydrogenase—than the sequence generation methods from original studies specifically tailored for these families.”
  • On CM function data, ProGen log-likelihoods had AUC 0.85, significantly better than bmDCA's 0.78 (p<0.0001, two-tailed, n=1617).

    “On CM function data, ProGen log-likelihoods had an area under the curve (AUC) of 0.85, significantly better (p<0.0001, two-tailed test, n=1617) than bmDCA, which had an AUC of 0.78 (Fig. 4c).”

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Authors
Russ, W. P., Figliuzzi, M., Stocker, C., Barrat-Charlaix, P., Socolich, M., Kast, P., Hilvert, D., Monasson, R., Cocco, S., Weigt, M., & Ranganathan, R.
Affiliations
  • The University of Texas Southwestern Medical Center (US)
  • Centre National de la Recherche Scientifique (FR)
  • ETH Zurich (CH)
  • University of Chicago (US)
  • Laboratoire de Physique de l’Ecole Normale Supérieure, PSL and CNRS, Paris, France.
Corresponding author
  • Russ, William P.
  • Figliuzzi, Matteo
  • Weigt, Martin
  • Ranganathan, Rama
Venue
Science
Published
2020-07-24
Volume
369
Issue
6502
Pages
440-445
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W3044778276
Cited by
313
References
56
Citations by year
2026: 40 · 2025: 55 · 2024: 53 · 2023: 55 · 2022: 56 · 2021: 45 · 2020: 8 · 2012: 1
FWCI
13.29
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • National Institutes of Health (GM12345)
  • Welch Foundation (I-1366)
  • European Commission Directorate-General for Research and Innovation (734439)
  • Agence Nationale de la Recherche (CE30-0021-01)
  • Swiss National Science Foundation (310030M_182648, 310030B_176405)
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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
chorismate mutase, rational enzyme design, protein evolution, complementation assay, aromatic amino acid biosynthesis, catalytic activity, generative models
MeSH terms
Amino Acid Sequence, Chorismate Mutase, Models, Genetic, Models, Statistical, Evolution, Molecular, Escherichia coli Proteins

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