Metabolic engineering of Escherichia coli for the production of 5-aminovalerate and glutarate as C5 platform chemicals

Si Jae Park, Eun Young Kim, Won Noh, Hye Min Park, Young Hoon Oh, Seung Hwan Lee, Bong Keun Song, Jonggeon Jegal, Sang Yup Lee

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

5-Aminovalerate (5AVA) is the precursor of valerolactam, a potential building block for producing nylon 5, and is a C5 platform chemical for synthesizing 5-hydroxyvalerate, glutarate, and 1,5-pentanediol. Escherichia coli was metabolically engineered for the production of 5-aminovalerate (5AVA) and glutarate. When the recombinant E. coli WL3110 strain expressing the Pseudomonas putida davAB genes encoding delta-aminovaleramidase and lysine 2-monooxygenase, respectively, were cultured in a medium containing 20. g/L of glucose and 10. g/L of l-lysine, 3.6. g/L of 5AVA was produced by converting 7. g/L of l-lysine. When the davAB genes were introduced into recombinant E. coli strainXQ56allowing enhanced l-lysine synthesis, 0.27 and 0.5. g/L of 5AVA were produced directly from glucose by batch and fed-batch cultures, respectively. Further conversion of 5AVA into glutarate could be demonstrated by expression of the P. putida gabTD genes encoding 5AVA aminotransferase and glutarate semialdehyde dehydrogenase. When recombinant E. coli WL3110 strain expressing the davAB and gabTD genes was cultured in a medium containing 20. g/L glucose, 10. g/L l-lysine and 10. g/L α-ketoglutarate, 1.7. g/L of glutarate was produced.

Original languageEnglish
Pages (from-to)42-47
Number of pages6
JournalMetabolic Engineering
Volume16
Issue number1
DOIs
StatePublished - 2013

Keywords

  • 5-aminovalerate
  • Escherichia coli
  • Glutarate
  • L-lysine
  • Metabolic engineering

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