An Enzymatic Cofactor Regeneration System for the in‐Vitro Reduction of Isolated C=C Bonds by Geranylgeranyl Reductases

Abstract: Cofactor regeneration systems are of major importance for the applicability of oxidoreductases in biocatalysis. Previously, geranylgeranyl reductases have been investigated for the enzymatic reduction of isolated C=C bonds. However, an enzymatic cofactor‐regeneration system for in vitro use is lacking. In this work, we report a ferredoxin from the archaea Archaeoglobus fulgidus that regenerates the flavin of the corresponding geranylgeranyl reductase. The proteins were heterologously produced, and the regeneration was coupled to a ferredoxin reductase from Escherichia coli and a glucose dehydrogenase from Bacillus subtilis, thereby enabling the reduction of isolated C=C bonds by purified enzymes. The system was applied in crude, cell‐free extracts and gave conversions comparable to those of a previous method using sodium dithionite for cofactor regeneration. Hence, an enzymatic approach to the reduction of isolated C=C bonds can be coupled with common systems for the regeneration of nicotinamide cofactors, thereby opening new perspectives for the application of geranylgeranyl reductases in biocatalysis.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
An Enzymatic Cofactor Regeneration System for the in‐Vitro Reduction of Isolated C=C Bonds by Geranylgeranyl Reductases ; day:10 ; month:11 ; year:2023 ; extent:6
ChemBioChem ; (10.11.2023) (gesamt 6)

Creator
Niese, Richard
Deshpande, Ketaki
Müller, Michael

DOI
10.1002/cbic.202300409
URN
urn:nbn:de:101:1-2023111114135344666147
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:44 AM CEST

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