Identification and manipulation of the pleuromutilin gene cluster from Clitopilus passeckerianus for increased rapid antibiotic production

Andy M. Bailey, Fabrizio Alberti, Sreedhar Kilaru, Catherine M. Collins, Kate De Mattos-Shipley, Amanda J. Hartley, Patrick Hayes, Alison Griffin, Colin M. Lazarus, Russell J. Cox, Christine L. Willis, Karen O'Dwyer, David W. Spence, Gary D. Foster*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

40 Citations (Scopus)
374 Downloads (Pure)

Abstract

Semi-synthetic derivatives of the tricyclic diterpene antibiotic pleuromutilin from the basidiomycete Clitopilus passeckerianus are important in combatting bacterial infections in human and veterinary medicine. These compounds belong to the only new class of antibiotics for human applications, with novel mode of action and lack of cross-resistance, representing a class with great potential. Basidiomycete fungi, being dikaryotic, are not generally amenable to strain improvement. We report identification of the seven-gene pleuromutilin gene cluster and verify that using various targeted approaches aimed at increasing antibiotic production in C. passeckerianus, no improvement in yield was achieved. The seven-gene pleuromutilin cluster was reconstructed within Aspergillus oryzae giving production of pleuromutilin in an ascomycete, with a significant increase (2106%) in production. This is the first gene cluster from a basidiomycete to be successfully expressed in an ascomycete, and paves the way for the exploitation of a metabolically rich but traditionally overlooked group of fungi.

Original languageEnglish
Article numbersrep25202
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 4 May 2016

Keywords

  • metabolic pathways

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