Biosynthesis of pinene from glucose using metabolically-engineered Corynebacterium glutamicum

Biotechnol Lett. 2014 Oct;36(10):2069-77. doi: 10.1007/s10529-014-1578-2. Epub 2014 Jun 15.

Abstract

Pinene is a monoterpenes (C10) that is produced in a genetically-engineered microbial host for its industrial applications in fragrances, flavoring agents, pharmaceuticals, and biofuels. Herein, we have metabolically-engineered Corynebacterium glutamicum, to produce pinene and studied its toxicity in C. glutamicum. Geranyl diphosphate synthases (GPPS) and pinene synthases (PS), obtained from Pinus taeda and Abies grandis, were co-expressed with over-expressed native 1-deoxy-d-xylulose-5-phosphate synthase (Dxs) and isopentenyl diphosphate isomerase (Idi) from C. glutamicum using CoryneBrick vector. Most strains expressing PS-GPPSs produced detectable amounts of pinene, but co-expression of DXS and IDI with PS (P. taeda) and GPPS (A. grandis) resulted in 27 μg ± 7 α-pinene g(-1) cell dry weight, which is the first report in C. glutamicum. Further engineering of PS and GPPS in the C. glutamicum strain may increase pinene production.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism*
  • Bicyclic Monoterpenes
  • Corynebacterium glutamicum / drug effects
  • Corynebacterium glutamicum / genetics*
  • Corynebacterium glutamicum / metabolism
  • Glucose / metabolism*
  • Metabolic Engineering*
  • Monoterpenes / metabolism*
  • Monoterpenes / toxicity
  • Recombinant Fusion Proteins / biosynthesis
  • Recombinant Fusion Proteins / genetics

Substances

  • Bacterial Proteins
  • Bicyclic Monoterpenes
  • Monoterpenes
  • Recombinant Fusion Proteins
  • Glucose
  • alpha-pinene