Biotechnology Letters

, Volume 34, Issue 11, pp 2087–2091 | Cite as

Type II thioesterase gene (ECO-orf27) from Amycolatopsis orientalis influences production of the polyketide antibiotic, ECO-0501 (LW01)

  • Yang Shen
  • He Huang
  • Li Zhu
  • Minyu Luo
  • Daijie Chen
Original Research Paper

Abstract

ECO-orf27 associated with the cluster of ECO-0501 (LW01) from Amycolatopsis orientalis is deduced to encode a type II thioesterase. Disruption of ECO-orf27 reduced LW01 production by 95 %. Complementation of the disrupted mutant with intact ECO-orf27 restored the production of LW01 suggesting that ECO-orf27 is crucial for LW01 biosynthesis. ECO-TE I, the gene encoding type I thioesterase from LW01 polyketide synthases, cannot complement ECO-orf27 deficient mutant distinguishing ECO-orf27 from type I thioesterase gene. Type II thioesterase gene pikAV from Streptomyces venezuelae could complement ECO-orf27 in A. orientalis indicating that the two genes are equivalent in their function. Overexpression of ECO-orf27 resulted in a 20 % increase in LW01 production providing an alternative approach for yield improvement.

Keywords

Amycolatopsis orientalis Antibiotic ECO-0501 antibiotic LW01 antibiotic Polyketide synthase Thioesterase 

Notes

Acknowledgments

The research is granted by the National S&T Major Special Project on Major New Drug Innovation (2009ZX9302-004) and National Natural Science Foundation (NFSC30672558).

Supplementary material

10529_2012_1010_MOESM1_ESM.doc (2.9 mb)
Supplementary material 1 (DOC 2960 kb)

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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Yang Shen
    • 1
  • He Huang
    • 2
  • Li Zhu
    • 2
    • 3
  • Minyu Luo
    • 3
  • Daijie Chen
    • 1
  1. 1.School of BiotechnologyEast China University of Science and TechnologyShanghaiPeople’s Republic of China
  2. 2.Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological SciencesChinese Academy of SciencesShanghaiPeople’s Republic of China
  3. 3.School of PharmacyShanghai Jiaotong UniversityShanghaiPeople’s Republic of China

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