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Substrate Pre-Folding and Water Molecule Organization Matters for Terpene Cyclase Catalyzed Conversion of Unnatural Substrates
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0002-4066-2776
2016 (English)In: CHEMISTRYSELECT, ISSN 2365-6549, Vol. 1, no 13, 3589-3593 p.Article in journal (Refereed) Published
Abstract [en]

Terpene cyclase enzymes have recently been challenged with terpene substrate derivatives to generate additional chemical complexity beyond to what is currently found in nature. Herein, molecular dynamics and biocatalysis are used to shed light on the flexibility and inherent limitation of a triterpene cyclase in converting unnatural substrates. Our studies suggest that populating binding modes which allows for concerted reaction pathways is a key element towards an expanded substrate scope and new chemistries displayed by terpene cyclases. Additionally, we show that the spatial organization of water, which is influenced by both the substrate architecture as well as the active site geometry, controls the product selectivity. This highlights that activity and selectivity displayed by terpene cyclases acting on unnatural substrates is particularly difficult to predict, since they depend on various parameters.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2016. Vol. 1, no 13, 3589-3593 p.
Keyword [en]
biocatalysis, enzyme catalysis, promiscuity, squalene hopene cyclase, terpene cyclases
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-202465DOI: 10.1002/slct.201600572ISI: 000392302300028OAI: oai:DiVA.org:kth-202465DiVA: diva2:1078281
Funder
EU, FP7, Seventh Framework Programme, 289646Swedish Research Council, 621-2013-5138
Note

QC 20170303

Available from: 2017-03-03 Created: 2017-03-03 Last updated: 2017-03-03Bibliographically approved

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CiteExportLink to record
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Citation style
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