期刊
MOLECULAR BIOSYSTEMS
卷 6, 期 3, 页码 587-593出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b904541d
关键词
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资金
- NSF [MCB-0236393]
- National Institute of General Medical Sciences [R01GM031837, PO1GM084077]
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM031837, P01GM084077] Funding Source: NIH RePORTER
F-9775A and F-9775B are cathepsin K inhibitors that arise from a chromatin remodelling deletant strain of Aspergillus nidulans. A polyketide synthase gene has been determined to be responsible for their formation and for the simpler, archetypical polyketide orsellinic acid. We have discovered simple culture conditions that result in the production of the three compounds, and this facilitates analysis of the genes responsible for their synthesis. We have now analysed the F9775/orsellinic acid gene cluster using a set of targeted deletions. We find that the polyketide synthase alone is required for orsellinic acid biosynthesis and only two additional genes in the cluster are required for F9775 A and B synthesis. Our deletions also yielded the bioactive metabolites gerfelin and diorcinol.
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