Cited by 88Microbial Metabolic Engineering and BioproductionProtein Structure and DynamicsEnzyme Catalysis and Immobilization

Rational Engineering of Enzyme Allosteric Regulation through Sequence Evolution Analysis

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Yang, Jae-Seong, Seo, Sang Woo, Jang, Sungho, Jung, Gyoo Yeol, Kim, Sanguk·2012·PLoS Computational Biology

Abstract

Control of enzyme allosteric regulation is required to drive metabolic flux toward desired levels. Although the three-dimensional (3D) structures of many enzyme-ligand complexes are available, it is still difficult to rationally engineer an allosterically regulatable enzyme without decreasing its catalytic activity. Here, we describe an effective strategy to deregulate the allosteric inhibition of enzymes based on the molecular evolution and physicochemical characteristics of allosteric ligand-binding sites. We found that allosteric sites are evolutionarily variable and comprised of more hydrophobic residues than catalytic sites. We applied our findings to design mutations in selected target residues that deregulate the allosteric activity of fructose-1,6-bisphosphatase (FBPase). Specifically, charged amino acids at less conserved positions were substituted with hydrophobic or neutral amino acids with similar sizes. The engineered proteins successfully diminished the allosteric inhibition of E. coli FBPase without affecting its catalytic efficiency. We expect that our method will aid the rational design of enzyme allosteric regulation strategies and facilitate the control of metabolic flux.

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Authors
Yang, J.-S., Seo, S. W., Jang, S., Jung, G. Y., & Kim, S.
Affiliations
Pohang University of Science and Technology (KR)
Corresponding author
  • Jung, Gyoo Yeol
  • Kim, Sanguk
Venue
PLoS Computational Biology
Published
2012-07-12
Volume
8
Issue
7
Pages
e1002612
ISSN
  • 1553-734X (ISSN-L)
  • 1553-7358
OpenAlex
W2015807753
Cited by
87
References
49
Citations by year
2026: 1 · 2025: 10 · 2024: 4 · 2023: 5 · 2022: 8 · 2021: 8 · 2020: 5 · 2019: 8 · 2018: 3 · 2017: 4 · 2016: 11 · 2015: 8 · 2014: 9 · 2013: 2 · 2012: 1
FWCI
2.57
Type
journal article
Language
en
Open access
Locations
  • PLoS Computational Biology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Open Access System for Information Sharing (Pohang University of Science and Technology) (submittedVersion)
Funders
  • National Research Foundation
  • Ministry of Land, Transport and Maritime Affairs
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • 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
Keywords
allosteric inhibition, fructose-1,6-bisphosphatase, site-directed mutagenesis, sequence evolution, hydrophobic residues, metabolic flux control, Escherichia coli, rational protein design, catalytic activity
MeSH terms
Adenosine Monophosphate, Allosteric Regulation, Amino Acid Sequence, Fructose-Bisphosphatase, Models, Molecular, Molecular Sequence Data, Mutation, Protein Engineering, Evolution, Molecular, Computational Biology, Glucose-6-Phosphate, Catalytic Domain, Sequence Analysis, Protein, Escherichia coli Proteins, Hydrophobic and Hydrophilic Interactions

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