Design, construction and performance of the most efficient biomass producing E. coli bacterium

Cong T. Trinh, Ross Carlson, Aaron Wlaschin, Friedrich Srienc

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Inverse metabolic engineering based on elementary mode analysis was applied to maximize the biomass yield of Escherchia coli MG1655. Elementary mode analysis was previously employed to identify among 1691 possible pathways for cell growth the most efficient pathway with maximum biomass yield. The metabolic network analysis predicted that deletion of only 6 genes reduces the number of possible elementary modes to the most efficient pathway. We have constructed a strain containing these gene deletions and we evaluated its properties in batch and in chemostat growth experiments. The results show that the theoretical predictions are closely matched by the properties of the designed strain.

Original languageEnglish (US)
Pages (from-to)628-638
Number of pages11
JournalMetabolic Engineering
Volume8
Issue number6
DOIs
StatePublished - Nov 1 2006

Keywords

  • Biomass yield optimization
  • Elementary (flux) mode
  • Inverse metabolic engineering
  • Metabolic network analysis

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