Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Bypassing the Pentose Phosphate Pathway: Towards Modular Utilization of Xylose

Journal Article · · PLoS ONE
 [1];  [2];  [3];  [4];  [3];  [5]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Plant and Microbial Biology; DOE/OSTI
  2. Energy Biosciences Inst., Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States). Dept. of Nutritional Sciences and Toxicology. Program in Metabolic Biology
  4. Univ. of California, Berkeley, CA (United States). Dept. of Molecular and Cell Biology
  5. Univ. of California, Berkeley, CA (United States). Dept. of Molecular and Cell Biology; Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Physical Biosciences Division
The efficient use of hemicellulose in the plant cell wall is critical for the economic conversion of plant biomass to renewable fuels and chemicals. Previously, the yeast Saccharomyces cerevisiae has been engineered to convert the hemicellulose-derived pentose sugars xylose and arabinose to D-xylulose-5-phosphate for conversion via the pentose phosphate pathway (PPP). However, efficient pentose utilization requires PPP optimization and may interfere with its roles in NADPH and pentose production. Here, we developed an alternative xylose utilization pathway that largely bypasses the PPP. In the new pathway, D-xylulose is converted to D-xylulose-1-phosphate, a novel metabolite to S. cerevisiae, which is then cleaved to glycolaldehyde and dihydroxyacetone phosphate. This synthetic pathway served as a platform for the biosynthesis of ethanol and ethylene glycol. The use of D-xylulose-1-phosphate as an entry point for xylose metabolism opens the way for optimizing chemical conversion of pentose sugars in S. cerevisiae in a modular fashion.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1627794
Journal Information:
PLoS ONE, Journal Name: PLoS ONE Journal Issue: 6 Vol. 11; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

References (40)

Xylose fermentation by Saccharomyces cerevisiae journal March 1993
Ethanol production from xylose in engineered Saccharomyces cerevisiae strains: current state and perspectives journal July 2009
Engineering redox cofactor utilization for detoxification of glycolaldehyde, a key inhibitor of bioethanol production, in yeast Saccharomyces cerevisiae journal June 2013
Identification of glycolaldehyde as the key inhibitor of bioethanol fermentation by yeast and genome-wide analysis of its toxicity journal October 2010
The biochemistry, metabolism and inherited defects of the pentose phosphate pathway: A review journal November 2008
Production of 2,3-butanediol by engineered Saccharomyces cerevisiae journal October 2013
Simultaneous determination of multiple intracellular metabolites in glycolysis, pentose phosphate pathway and tricarboxylic acid cycle by liquid chromatography–mass spectrometry journal April 2007
Minimal metabolic engineering of for efficient anaerobic xylose fermentation a proof of principle journal March 2004
Energetic benefits and rapid cellobiose fermentation by Saccharomyces cerevisiae expressing cellobiose phosphorylase and mutant cellodextrin transporters journal January 2013
Efficient utilization of pentoses for bioproduction of the renewable two-carbon compounds ethylene glycol and glycolate journal March 2016
Glucose repression in yeast journal April 1999
Engineering of a Synthetic Metabolic Pathway for the Assimilation of (d)-Xylose into Value-Added Chemicals journal July 2015
Ethylene glycol: properties, synthesis, and applications journal January 2012
The purification and properties of human liver ketohexokinase. A role for ketohexokinase and fructose-bisphosphate aldolase in the metabolic production of oxalate from xylitol journal August 1985
Expression of rat liver ketohexokinase in yeast results in fructose intolerance journal April 1993
eQuilibrator--the biochemical thermodynamics calculator journal November 2011
The non-oxidative pentose phosphate pathway controls the fermentation rate of xylulose but not of xylose inSaccharomyces cerevisiaeTMB3001 journal August 2002
Engineering NADH metabolism in Saccharomyces cerevisiae : formate as an electron donor for glycerol production by anaerobic, glucose-limited chemostat cultures journal December 2006
Nutritional requirements of the BY series of Saccharomyces cerevisiae strains for optimum growth journal July 2012
Challenges in Engineering Microbes for Biofuels Production journal February 2007
Cellodextrin Transport in Yeast for Improved Biofuel Production journal September 2010
Reduced Oxidative Pentose Phosphate Pathway Flux in Recombinant Xylose-Utilizing Saccharomyces cerevisiae Strains Improves the Ethanol Yield from Xylose journal April 2002
Metabolic Engineering of a Phosphoketolase Pathway for Pentose Catabolism in Saccharomyces cerevisiae journal May 2004
Metabolic engineering for improved microbial pentose fermentation journal November 2010
Engineering a novel biosynthetic pathway in Escherichia coli for production of renewable ethylene glycol: Bioproduction of Renewable Ethylene Glycol journal September 2015
Xylose fermentation by Saccharomyces cerevisiae journal March 1993
Improvement of tolerance of Saccharomyces cerevisiae to hot-compressed water-treated cellulose by expression of ADH1 journal February 2012
Biosynthesis of ethylene glycol in Escherichia coli journal December 2012
Construction of xylose-assimilating Saccharomyces cerevisiae journal January 1993
Microbial Pentose Utilization book January 1993
Transformation of yeast by lithium acetate/single-stranded carrier DNA/polyethylene glycol method book January 2002
Glucose repression in yeast journal April 1999
The PGM3 gene encodes the major phosphoribomutase in the yeast Saccharomyces cerevisiae journal October 2012
Engineered Saccharomyces cerevisiae capable of simultaneous cellobiose and xylose fermentation journal December 2010
The Path Forward for Biofuels and Biomaterials journal January 2006
Lost in Transition: Start-Up of Glycolysis Yields Subpopulations of Nongrowing Cells journal January 2014
Reduced Oxidative Pentose Phosphate Pathway Flux in Recombinant Xylose-Utilizing Saccharomyces cerevisiae Strains Improves the Ethanol Yield from Xylose journal April 2002
Metabolic Engineering of a Phosphoketolase Pathway for Pentose Catabolism in Saccharomyces cerevisiae journal May 2004
Optimization of ethylene glycol production from (d)-xylose via a synthetic pathway implemented in Escherichia coli journal September 2015
Optimization of ethylene glycol production from (d)-xylose via a synthetic pathway implemented in Escherichia coli collection January 2015

Cited By (5)

Biotechnological production of glycolic acid and ethylene glycol: current state and perspectives journal February 2019
Systematic improvement of isobutanol production from d-xylose in engineered Saccharomyces cerevisiae journal October 2019
Production of ethylene glycol or glycolic acid from D-xylose in Saccharomyces cerevisiae journal October 2017
Deciphering bacterial xylose metabolism and metabolic engineering of industrial microorganisms for use as efficient microbial cell factories journal September 2018
Engineering microbial pathways for production of bio-based chemicals from lignocellulosic sugars: current status and perspectives journal July 2020