Oxidative steps during the biosynthesis of squalestatin S1

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Lebe, Karen E.; Cox, Russell J.: Oxidative steps during the biosynthesis of squalestatin S1. In: Chemical Science 10 (2018), Nr. 4, S. 1227-1231. DOI: https://doi.org/10.1039/c8sc02615g

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The squalestatins are a class of highly complex fungal metabolites which are potent inhibitors of squalene synthase with potential use in the control of cholesterol biosynthesis. Little is known of the chemical steps involved in the construction of the 4,8-dioxa-bicyclo[3.2.1]octane core. Here, using a combination of directed gene knockout and heterologous expression experiments, we show that two putative non-heme-iron-dependent enzymes appear to catalyse a remarkable series of six consecutive oxidations which set up the bioactive core of the squalestatins. This is followed by the action of an unusual copper-dependent oxygenase which introduces a hydroxyl required for later acetylation.
License of this version: CC BY-NC 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Naturwissenschaftliche Fakultät

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