Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 18, Issue 26, Pages 4946-4948Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ob00989j
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [Li844/11-1, INST 160/620-1]
- National Natural Science Foundation of China [31861133004]
- China Scholarship Council [201708530222]
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Heterologous expression has been proven to be a successful strategy for the identification of metabolites encoded by cryptic/silent genes. Expression of a nonreducing polyketide synthase (NR-PKS) gene from Penicillium crustosum in Aspergillus nidulans led to the accumulation of three isocoumarins 1-3. Feeding experiments revealed that the PKS product 1 can be converted by the host enzymes to its hydroxylated (2) and methylated (3) derivatives. These results provided one additional example that unexpected further modifications of an enzyme product can take place in a heterologous host.
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