Genome Mining Of Alkaloidal Terpenoids From A Hybrid Terpene And Nonribosomal Peptide Biosynthetic Pathway
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY(2020)
摘要
Biosynthetic pathways containing multiple core enzymes have potential to produce structurally complex natural products. Here we mined a fungal gene cluster that contains two predicted terpene cyclases (TCs) and a nonribosomal peptide synthetase (NRPS). We showed the fly pathway produces flavunoidine 1, an alkaloidal terpenoid. The core of 1 is a tetracyclic, cage-like, and oxygenated sesquiterpene that is connected to dimethylcadaverine via a C-N bond and is acylated with 5,5-dimethyl-L-pipecolate. The roles of all flv enzymes are established on the basis of metabolite analysis from heterologous expression.
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