Cited by 266Microbial Metabolic Engineering and BioproductionBioinformatics and Genomic NetworksGene Regulatory Network Analysis

Global characterization of in vivo enzyme catalytic rates and their correspondence to in vitro k cat measurements

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Davidi, Dan, Noor, Elad, Liebermeister, Wolfram, Bar-Even, Arren, Flamholz, Avi, Tummler, Katja, Barenholz, Uri, Goldenfeld, Miki +2 more·2016·Proceedings of the National Academy of Sciences

Abstract

Significance: The k cat values of enzymes are important for the study of metabolic systems. However, the current use of k cat presents major difficulties, as values for most enzymes have not been experimentally measured, and experimentally available values are often measured under nonphysiological conditions, thereby casting doubt on the relevance of k cat under in vivo conditions. We present an approach that utilizes omics data to quantitatively analyze the relationship between in vitro k cat values and the maximal catalytic rate of enzymes in vivo. Our approach offers a high-throughput method to obtain enzyme kinetic constants, which reflect in vivo conditions, and are useful for more accurate and complete cellular metabolic models.

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  1. Davidi et al. PNAS | March 22, 2016 | vol. 113 | no. 12 | 3405 SYSTEMS BIOLOGY

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Authors
Davidi, D., Noor, E., Liebermeister, W., Bar-Even, A., Flamholz, A., Tummler, K., Barenholz, U., Goldenfeld, M., Shlomi, T., & Milo, R.
Affiliations
  • Weizmann Institute of Science (IL)
  • Institute of Molecular Systems Biology, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland;
  • Charité – Universitätsmedizin Berlin (DE)
  • Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany;
  • University of California, Berkeley (US)
  • Humboldt-Universität zu Berlin (DE)
  • Technion – Israel Institute of Technology (IL)
Corresponding author
Milo, Ron
Venue
Proceedings of the National Academy of Sciences
Published
2016-03-07
Volume
113
Issue
12
Pages
3401-3406
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2293953879
Cited by
266
References
72
Citations by year
2026: 29 · 2025: 28 · 2024: 38 · 2023: 33 · 2022: 16 · 2021: 28 · 2020: 30 · 2019: 21 · 2018: 18 · 2017: 17 · 2016: 7 · 2015: 1
FWCI
10.92
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)
Funders
EC | European Research Council (SYMPAC 260392)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
enzyme turnover number, turnover number, enzyme kinetics, enzyme saturation, thermodynamics, Escherichia coli, omics data, in vitro-in vivo correlation
MeSH terms
Catalysis, Enzymes

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