The draft genome sequence of Actinokineospora bangkokensis 44EHWT reveals the biosynthetic pathway of the antifungal thailandin compounds with unusual butylmalonyl-CoA extender units

Anja Greule, Bungonsiri Intra, Stephan Flemming, Marcel G E Rommel, Watanalai Panbangred, Andreas Bechthold

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Abstract

We report the draft genome sequence of Actinokineospora bangkokensis 44EHWT, the producer of the antifungal polyene compounds, thailandins A and B. The sequence contains 7.45 Mb, 74.1% GC content and 35 putative gene clusters for the biosynthesis of secondary metabolites. There are three gene clusters encoding large polyketide synthases of type I. Annotation of the ORF functions and targeted gene disruption enabled us to identify the cluster for thailandin biosynthesis. We propose a plausible biosynthetic pathway for thailandin, where the unusual butylmalonyl-CoA extender unit is incorporated and results in an untypical side chain.

Original languageEnglish
Article number1607
Number of pages16
JournalMolecules
Volume21
Issue number11
DOIs
Publication statusPublished - 23 Nov 2016
Externally publishedYes

Keywords

  • Actinokineospora bangkokensis
  • Biosynthetic gene cluster
  • Butylmalonyl-CoA
  • Draft genome sequence
  • Genome mining
  • Polyene
  • Thailandin

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