skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Comparative studies of glycolytic pathways and channeling under in vitro and in vivo modes

Journal Article · · AIChE Journal
DOI:https://doi.org/10.1002/aic.16367· OSTI ID:1472164
 [1];  [2];  [1];  [3];  [3]; ORCiD logo [2]; ORCiD logo [1]
  1. Dept. of Energy, Environmental and Chemical Engineering Washington University St. Louis MO 63130
  2. Key Laboratory of Combinatorial Biosynthesis and Drug Discovery Ministry of Education and Wuhan University School of Pharmaceutical Sciences Wuhan 430071 China
  3. Lawrence Berkeley National Laboratory Emeryville CA 64608

This study constructed cell‐free glycolytic enzyme systems and compared them to their in vivo functions in Escherichia coli . Under in vitro conditions, flux regulation followed enzyme concentrations and kinetics. In E. coli, only one of the isozymes of phosphofructokinase (PfkA) and fructose‐bisphosphate aldolase (FbaA) facilitate Embden‐Meyerhof‐Parnas (EMP) flux, but under in vitro assays, these isozymes were interchangeable. Additionally, in vitro introduction of the Entner–Doudoroff (ED) pathway improved glycolysis rates, while in vivo overexpression of the ED pathway could not capture significant flux unless its phosphotransferase system (PTS) was knocked out. Lastly, in vivo dynamic 13 C‐experiments revealed that the labeling order of EMP pathway intermediates was not strictly cascade, indicating intracellular metabolites were not well mixed. These enigmatic observations cannot be fully explained by thermodynamics or substrate level regulations. This article supports the long‐time conjecture that EMP enzymes are channeled, and the PTS may be an anchor point to initiate enzyme assemblies. © 2018 American Institute of Chemical Engineers AIChE J , 65: 483–490, 2019

Sponsoring Organization:
USDOE
Grant/Contract Number:
DESC0018324
OSTI ID:
1472164
Journal Information:
AIChE Journal, Journal Name: AIChE Journal Vol. 65 Journal Issue: 2; ISSN 0001-1541
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (43)

High-throughput metabolic flux analysis based on gas chromatography–mass spectrometry derived 13C constraints journal February 2004
Direct Evidence for Metabolon Formation and Substrate Channeling in Recombinant TCA Cycle Enzymes journal August 2016
Channeling in native microbial pathways: Implications and challenges for metabolic engineering journal November 2017
Effect of a pyruvate kinase ( pykF -gene) knockout mutation on the control of gene expression and metabolic fluxes in Escherichia coli journal June 2004
Metabolic engineering and adaptive evolution of Escherichia coli KO11 for ethanol production through the Entner-Doudoroff and the pentose phosphate pathways : Engineering of E-D and PP pathways in KO11 pgi- knockout
  • Huerta-Beristain, Gerardo; Cabrera-Ruiz, Rosina; Hernandez-Chavez, Georgina
  • Journal of Chemical Technology & Biotechnology, Vol. 92, Issue 5 https://doi.org/10.1002/jctb.5138
journal November 2016
Combination of Entner-Doudoroff Pathway with MEP Increases Isoprene Production in Engineered Escherichia coli journal December 2013
Glycolytic Enzymes Associate Dynamically with Mitochondria in Response to Respiratory Demand and Support Substrate Channeling journal November 2007
Possible Pitfalls of Flux Calculations Based on 13C-Labeling journal April 2001
eQuilibrator--the biochemical thermodynamics calculator journal November 2011
Modulation of the Major Paths of Carbon in Photorespiratory Mutants of Synechocystis journal January 2011
The role of dynamic enzyme assemblies and substrate channelling in metabolic regulation journal May 2018
Large-scale in vivo flux analysis shows rigidity and suboptimal performance of Bacillus subtilis metabolism journal May 2005
In Vitro Reconstitution and Optimization of the Entire Pathway to Convert Glucose into Fatty Acid journal January 2017
Interaction between phosphofructokinase and aldolase from Saccharomyces cerevisiae studied by aqueous two-phase partitioning journal February 2001
Characterization of physiological responses to 22 gene knockouts in Escherichia coli central carbon metabolism journal September 2016
Adaptation for fast growth on glucose by differential expression of central carbon metabolism and gal regulon genes in an Escherichia coli strain lacking the phosphoenolpyruvate:carbohydrate phosphotransferase system journal March 2005
Substrate-driven chemotactic assembly in an enzyme cascade journal December 2017
Global metabolic regulation analysis for Escherichia coli K12 based on protein expression by 2-dimensional electrophoresis and enzyme activity measurement journal January 2003
Metabolic flux analysis in a nonstationary system: Fed-batch fermentation of a high yielding strain of E. coli producing 1,3-propanediol journal May 2007
A genome-scale Escherichia coli kinetic metabolic model k-ecoli457 satisfying flux data for multiple mutant strains journal December 2016
Intrinsically disordered linkers determine the interplay between phase separation and gelation in multivalent proteins journal November 2017
Genetic Basis of Growth Adaptation of Escherichia coli after Deletion of pgi, a Major Metabolic Gene journal November 2010
Analysis of Carbon Metabolism in Escherichia coli Strains with an Inactive Phosphotransferase System by 13C Labeling and NMR Spectroscopy journal April 2002
Glycolytic strategy as a tradeoff between energy yield and protein cost journal April 2013
Mapping photoautotrophic metabolism with isotopically nonstationary 13C flux analysis journal November 2011
Krebs Cycle Metabolon: Structural Evidence of Substrate Channeling Revealed by Cross-Linking and Mass Spectrometry journal December 2014
Allosteric and non-allosteric E. coli phosphofructokinases: effects on growth journal April 1978
Improved Production of l-Threonine in Escherichia coli by Use of a DNA Scaffold System journal November 2012
A Map of Protein-Metabolite Interactions Reveals Principles of Chemical Communication journal January 2018
Isotopically nonstationary 13 C flux analysis of changes in Arabidopsis thaliana leaf metabolism due to high light acclimation journal November 2014
Quantifying E. coli Proteome and Transcriptome with Single-Molecule Sensitivity in Single Cells journal July 2010
Global Rebalancing of Cellular Resources by Pleiotropic Point Mutations Illustrates a Multi-scale Mechanism of Adaptive Evolution journal April 2016
Examining Escherichia coli glycolytic pathways, catabolite repression, and metabolite channeling using Δpfk mutants journal October 2016
WUFlux: an open-source platform for 13C metabolic flux analysis of bacterial metabolism journal November 2016
Substrate channeling and enzyme complexes for biotechnological applications journal November 2011
Synthetic protein scaffolds provide modular control over metabolic flux journal August 2009
Quantitative estimation of channeling from early glycolytic intermediates to CO2 in intact Escherichia coli: Quantitation of channeling in intact E. coli journal June 2005
Genome-Scale Architecture of Small Molecule Regulatory Networks and the Fundamental Trade-Off between Regulation and Enzymatic Activity journal September 2017
Biomolecular condensates: organizers of cellular biochemistry journal February 2017
Pathway engineering for the production of aromatic compounds in Escherichia coli journal May 1996
New tools for mass isotopomer data evaluation in13C flux analysis: Mass isotope correction, data consistency checking, and precursor relationships journal January 2004
Absolute metabolite concentrations and implied enzyme active site occupancy in Escherichia coli journal June 2009
Substrate channelling as an approach to cascade reactions journal March 2016