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CORRECTION article

Front. Microbiol., 15 July 2020 | https://doi.org/10.3389/fmicb.2020.01503

Corrigendum: All Three Endogenous Quinone Species of Escherichia coli Are Involved in Controlling the Activity of the Aerobic/Anaerobic Response Regulator ArcA

Johan W. A. van Beilen and Klaas J. Hellingwerf*
  • Department of Molecular Microbial Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands

In the original article, there was a mistake in the legend for Figure 1 as published. There were small discrepancies between the text of this legend and the drawing of the figure. The correct legend appears below.

In the original article, there was a mistake in Figure 1 as published. In the chemical structure of two intermediates in the biosynthesis of menaquinone a key hydroxy group was missing. The corrected Figure 1 appears below.

FIGURE 1
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Figure 1. Biosynthesis routes of the quinones of Escherichia coli, starting from chorismate. Dashed arrows indicate enzymes deleted in mutants used in this study. The double arrow symbolizes the action of the introduced heterologous MenHBsu. The underlined intermediate C1-demethyl-C6-demethoxy-Q8 (DDMQ8) may accumulate in a ubiE mutant strain (for references: see text). Established bio-active quinones are indicated via their abbreviation. UQ, ubiquinone; DMK, demethylmenaquinone; MK, menaquinone; R, isoprenoid sidechain.

The authors apologize for these errors and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.

Keywords: ubiquinone, menaquinol, naphtoquinones, phos-tag electrophoresis, single-quinone producing mutants, ubiE

Citation: van Beilen JWA and Hellingwerf KJ (2020) Corrigendum: All Three Endogenous Quinone Species of Escherichia coli Are Involved in Controlling the Activity of the Aerobic/Anaerobic Response Regulator ArcA. Front. Microbiol. 11:1503. doi: 10.3389/fmicb.2020.01503

Received: 11 May 2020; Accepted: 10 June 2020;
Published: 15 July 2020.

Edited and reviewed by: Lars E. P. Dietrich, Columbia University, United States

Copyright © 2020 van Beilen and Hellingwerf. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Klaas J. Hellingwerf, k.j.hellingwerf@uva.nl