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Modular Polyketide Synthase Ketosynthases Collaborate with Upstream Dehydratases to Install Double Bonds

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Specialty Chemistry
Date 2024 Jul 26
PMID 39056119
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Abstract

A VMYH motif was determined to help ketosynthases in polyketide assembly lines select α,β-unsaturated intermediates from an equilibrium mediated by an upstream dehydratase. Alterations of this motif decreased ketosynthase selectivity within a model tetraketide synthase, most significantly when replaced by the TNGQ motif of ketosynthases that accept D-β-hydroxy intermediates.

Citing Articles

Mutagenesis Supports AlphaFold Prediction of How Modular Polyketide Synthase Acyl Carrier Proteins Dock With Downstream Ketosynthases.

Hirsch M, Desai R, Annaswamy S, Keatinge-Clay A Proteins. 2024; 92(12):1375-1384.

PMID: 39078105 PMC: 11543512. DOI: 10.1002/prot.26733.

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