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  • Title: Isolation, structure and biological activity of phomafungin, a cyclic lipodepsipeptide from a widespread tropical Phoma sp.
    Author: Herath K, Harris G, Jayasuriya H, Zink D, Smith S, Vicente F, Bills G, Collado J, González A, Jiang B, Kahn JN, Galuska S, Giacobbe R, Abruzzo G, Hickey E, Liberator P, Xu D, Roemer T, Singh SB.
    Journal: Bioorg Med Chem; 2009 Feb 01; 17(3):1361-9. PubMed ID: 19112025.
    Abstract:
    We isolated a cyclic lipodepsipeptide, phomafungin, from a Phoma sp. The distinct antifungal activity of phomafungin in the crude extract was initially discovered by mechanistic profiling in the Candida albicans fitness test. The purified compound contains a 28 member ring consisting of eight amino acids and a beta-hydroxy-gamma-methyl-hexadecanoic acid, and displays a broad spectrum of antifungal activity against Candida spp., Aspergillus fumigatus and Trichophyton mentagrophytes with MIC of 2-8 microg/ml, and toxicity to mice at 25 mg/kg. The linear peptide derived from opening of the lactone ring was devoid of antifungal activity as well as toxicity. Phomafungin has been identified in a number of Phoma spp. collected from Africa and the Indian and Pacific Ocean islands.
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