Abstract
Structurally diverse fungal meroterpenoids are promising drug seed compounds. To obtain unnatural, novel meroterpene scaffolds, we tested combinatorial biosynthesis by co-expressing functionally distinct terpene cyclase (TPC) genes, pyr4, ascF, andB, or cdmG, with the biosynthetic genes for the production of a TPC substrate, (10'R)-epoxyfarnesyl-dimethylorsellinic acid-3,5-methyl ester, in Aspergillus oryzae NSAR1 as a heterologous host. As a result, all of the tested TPCs afforded the same two novel mono-cyclization products. This study provides important information on the substrate scope of the TPCs, and will contribute to the production of unnatural, novel molecules for future drug discovery.
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