Two Prenyltransferases Govern a Consecutive Prenylation Cascade in the Biosynthesis of Echinulin and Neoechinulin

Organic Letters
Viola WohlgemuthShu-Ming Li

Abstract

Two prenyltransferases from Aspergillus ruber control the echinulin biosynthesis via exceptional sequential prenylations. EchPT1 catalyzes the first prenylation step, leading to preechinulin. The unique EchPT2 attaches, in a consecutive prenylation cascade, up to three dimethylallyl moieties to preechinulin and its dehydro forms neoechinulins A and B, resulting in the formation of at least 23 2- to 4-fold prenylated derivatives. Confirming these products in fungal extracts unravels the unprecedented catalytic relevance of EchPT2 for structural diversity.

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Citations

Jan 22, 2019·Natural Product Reports·Anthony R CarrollMichèle R Prinsep
Jan 27, 2018·Applied Microbiology and Biotechnology·Viola WohlgemuthShu-Ming Li

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