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Issue 23, 2020
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Characterization in aqueous medium of an FMN semiquinone radical stabilized by the enzyme-like microenvironment of a modified polyethyleneimine

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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


Submitted
25 Apr 2020
Accepted
26 May 2020
First published
26 May 2020

Org. Biomol. Chem., 2020,18, 4386-4389
Article type
Communication

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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