Issue 23, 2020
From the journal:

Organic & Biomolecular Chemistry

Characterization in aqueous medium of an FMN semiquinone radical stabilized by the enzyme-like microenvironment of a modified polyethyleneimine†

Yoan Chevalier,a   Yvette Lock Toy Ki,b   Christian Herrero, ORCID logo a   Didier le Nouën,b   Jean-Pierre Mahy, ORCID logo a   Jean-Philippe Goddard ORCID logo *b  and  Frédéric Avenier ORCID logo *a  

* Corresponding authors

a ICMMO, UMR CNRS 8182, Université Paris Saclay, rue du doyen Georges Poitou, 91405 Orsay, France
E-mail: frederic.avenier@u-psud.fr

b LIMA, UMR CNRS 7042, Université de Haute-Alsace, Université de Strasbourg, 68100 Mulhouse, France
E-mail: jean-philippe.goddard@uha.fr

Abstract

The elusive flavin semiquinone intermediate found in flavoproteins such as cryptochromes has been obtained in aqueous solution by single electron reduction of the natural FMN cofactor using sodium ascorbate. This species was formed in the local hydrophobic microenvironment of a modified polyethyleneimine and characterized by UV-Visible, fluorescence and EPR spectroscopies.

Graphical abstract: Characterization in aqueous medium of an FMN semiquinone radical stabilized by the enzyme-like microenvironment of a modified polyethyleneimine

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Article information

DOI
https://doi.org/10.1039/D0OB00864H
Article type
Communication
Submitted
25 Apr 2020
Accepted
26 May 2020
First published
26 May 2020

Org. Biomol. Chem., 2020,18, 4386-4389

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Characterization in aqueous medium of an FMN semiquinone radical stabilized by the enzyme-like microenvironment of a modified polyethyleneimine

Y. Chevalier, Y. Lock Toy Ki, C. Herrero, D. le Nouën, J. Mahy, J. Goddard and F. Avenier, Org. Biomol. Chem., 2020, 18, 4386 DOI: 10.1039/D0OB00864H

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