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Science China Life Sciences

, Volume 56, Issue 7, pp 628–637

First Online: 06 July 2013Received: 24 April 2013Accepted: 28 May 2013DOI: 10.1007-s11427-013-4505-1

Cite this article as: Zhang, T., Zhuo, Y., Jia, X. et al. Sci. China Life Sci. 2013 56: 628. doi:10.1007-s11427-013-4505-1

Abstract

Beauvericin, a cyclohexadepsipeptide-possessing natural product with synergistic antifungal, insecticidal, and cytotoxic activities. We isolated and characterized the fpBeas gene cluster, devoted to beauvericin biosynthesis, from the filamentous fungus Fusarium proliferatum LF061. Targeted inactivation of the F. proliferatum genomic copy of fpBeas abolished the production of beauvericin. Comparative sequence analysis of the FpBEAS showed 74% similarity with the BbBEAS that synthesizes the cyclic trimeric ester beauvericin in Beauveria bassiana, which assembles N-methyl-dipeptidol monomer intermediates by the programmed iterative use of the nonribosomal peptide synthetase modules. Differences between the organization of the beauvericin loci in F. proliferaturm and B. bassiana revealed the mechanism for high production of beauvericin in F. proliferatum. Our work provides new insights into beauvericin biosynthesis, and may lead to beauvericin overproduction and creation of new analogs via synthetic biology approaches.

Keywordsbeauvericin Fusarium proliferatum biosynthesis gene cluster synthetic biology Contributed equally to this work

This article is published with open access at Springerlink.com

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Autor: Tao Zhang - Ying Zhuo - XiaoPeng Jia - JinTao Liu - Hong Gao - FuHang Song - Mei Liu - LiXin Zhang

Fuente: https://link.springer.com/



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