PMID: 8588737Aug 1, 1995Paper

O2-sensing and O2-dependent gene regulation in facultatively anaerobic bacteria

Archives of Microbiology
G UndenS Six

Abstract

Availability of O2 is one of the most important regulatory signals in facultatively anaerobic bacteria. Various two- or one-component sensor/regulator systems control the expression of aerobic and anaerobic metabolism in response to O2. Most of the sensor proteins contain heme or Fe as cofactors that interact with O2 either by binding or by a redox reaction. The ArcA/ArcB regulator of aerobic metabolism in Escherichia coli may use a different sensory mechanism. In two-component regulators, the sensor is located in the cytoplasmic membrane, whereas one-component regulators are located in the cytoplasm. Under most conditions, O2 can readily reach the cytoplasm and could provide the signal in the cytoplasm. The transcriptional regulator FNR of E. Coli controls the expression of many genes required for anaerobic metabolism in response to O2. Functional homologs of FNR are present in facultatively anaerobic Proteobacteria and presumably also in gram-positive bacteria. The target genes of FNR are mostly under multiple regulation by FNR and other regulators that respond to O2, nitrate, or glucose. FNR represents a 'one-component' sensor/regulator and contains Fe for signal perception. In response to O2 availability, FNR is converted r...Continue Reading

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Citations

Oct 3, 2002·Biochimica Et Biophysica Acta·Laurent Philippot
Jul 9, 1999·Biochimica Et Biophysica Acta·L Philippot, O Højberg
Nov 18, 2004·Journal of Bacteriology·Victoria R SuttonPatricia J Kiley
Apr 5, 2005·Journal of Bacteriology·Akos T KovácsKornél L Kovács
Mar 5, 2009·Microbiology and Molecular Biology Reviews : MMBR·Manuel CarmonaEduardo Díaz
Jul 3, 2008·Saline Systems·María José BoneteDavid J Richardson
Jan 30, 2014·PloS One·Sonja SteinsiekKatja Bettenbrock
Sep 7, 2005·Metabolic Engineering·Steven J CoxKa-Yiu San
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Jan 1, 2012·Computational and Structural Biotechnology Journal·Jimena A RuizPablo I Nikel
Nov 2, 2016·Journal of Industrial Microbiology & Biotechnology·George N Bennett, Ka-Yiu San
Mar 16, 2016·PloS One·Jennifer M Kress-BennettBenjamin A Janto
Sep 15, 2015·PLoS Genetics·Johanna R ElfenbeinHelene L Andrews-Polymenis
Jan 30, 2015·Nucleic Acids Research·Mor NitzanHanah Margalit
Oct 22, 2011·Microbiology·Avelino Álvarez-OrdóñezColin Hill
Jun 28, 2014·Journal of the Royal Society, Interface·Anne-Lise DucluzeauWolfgang Nitschke
Jun 19, 2020·3 Biotech·Corina Paraschiva CiobanuDan Cascaval

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