Modular assembly of an artificially concise biocatalytic cascade for the manufacture of phenethylisoquinoline alkaloids

Yue Gao, Fei Li, Zhengshan Luo, Zhiwei Deng, Yan Zhang, Zhenbo Yuan, Changmei Liu and Yijian Rao ()
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Yue Gao: Jiangnan University
Fei Li: Jiangnan University
Zhengshan Luo: Jiangnan University
Zhiwei Deng: Jiangnan University
Yan Zhang: Jiangnan University
Zhenbo Yuan: Jiangnan University
Changmei Liu: Jiangnan University
Yijian Rao: Jiangnan University

Nature Communications, 2024, vol. 15, issue 1, 1-13

Abstract: Abstract Plant-derived alkaloids are an important class of pharmaceuticals. However, they still rely on phytoextraction to meet their diverse market demands. Since multistep biocatalytic cascades have begun to revolutionize the manufacture of natural or unnatural products, to address the synthetic challenges of alkaloids, herein we establish an artificially concise four-enzyme biocatalytic cascade with avoiding plant-derived P450 modification for synthesizing phenethylisoquinoline alkaloids (PEIAs) after enzyme discovery and enzyme engineering. Efficient biosynthesis of diverse natural and unnatural PEIAs is realized from readily available substrates. Most importantly, the scale-up preparation of the colchicine precursor (S)-autumnaline with a high titer is achieved after replacing the rate-limiting O-methylation by the plug-and-play strategy. This study not only streamlines future engineering endeavors for colchicine biosynthesis, but also provides a paradigm for constructing more artificial biocatalytic cascades for the manufacture of diverse alkaloids through synthetic biology.

Date: 2024
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DOI: 10.1038/s41467-023-44420-7

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