The enduracidin biosynthetic gene cluster from Streptomyces fungicidicus

Xihou Yin, Mark Zabriskie

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

The biosynthetic gene cluster for the 17 aa peptide antibiotic enduracidin has been cloned and sequenced from Streptomyces fungicidicus ATCC 21013. The 84 kb gene cluster contains 25 ORFs and is located within a 116 kb genetic locus that was fully sequenced. Targeted disruption of non-ribosomal peptide synthetase (NRPS) genes in the cluster abolished enduracidin production and confirmed function. The cluster includes four genes, endA-D, encoding two-, seven-, eight- and one-module NRPSs, respectively, and includes unique modules for the incorporation of citrulline and enduracididine. The NRPS organization generally follows the collinearity principle, and starts with a condensation domain (C domain) similar to those found in other lipopeptide systems for the coupling of an acyl group to the starting amino acid. The sixth module of EndB, corresponding to Thr8, is missing an adenylation domain (A domain) and this module is presumed to be loaded in trans by the single module protein EndD. The most striking feauture of the NRPS organization is the lack of residues. Sequence analysis reveals that C domains following modules corresponding to D-amino acids belong to a unique subset of C domains able to catalyse both epimerization and condensation reactions. Other genes directing lipid modification and activation, and formation of the non-proteinogenic amino acids 4-hydroxyphenylglycine and enduracididine are readily identified, as are genes possibly involved in regulation of antibiotic biosynthesis and export. These findings provide the basis to further genetically manipulate and improve lipodepsipeptide antibiotics via combinatorial and chemical methods.

Original languageEnglish (US)
Pages (from-to)2969-2983
Number of pages15
JournalMicrobiology
Volume152
Issue number10
DOIs
StatePublished - Oct 2006
Externally publishedYes

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Peptide Synthases
Streptomyces
Multigene Family
Anti-Bacterial Agents
Amino Acids
Genes
Lipopeptides
Citrulline
Genetic Loci
Open Reading Frames
Sequence Analysis
Lipids
Peptides
Proteins
L-allo-enduracididine

ASJC Scopus subject areas

  • Microbiology

Cite this

The enduracidin biosynthetic gene cluster from Streptomyces fungicidicus. / Yin, Xihou; Zabriskie, Mark.

In: Microbiology, Vol. 152, No. 10, 10.2006, p. 2969-2983.

Research output: Contribution to journalArticle

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