PMID: 8981989Jan 1, 1997Paper

Molecular genetic analysis suggesting interactions between AppA and PpsR in regulation of photosynthesis gene expression in Rhodobacter sphaeroides 2.4.1

Journal of Bacteriology
Mark Gomelsky, Samuel Kaplan

Abstract

The AppA protein plays an essential regulatory role in development of the photosynthetic apparatus in the anoxygenic phototrophic bacterium Rhodobacter sphaeroides 2.4.1 (M. Gomelsky and S. Kaplan, J. Bacteriol. 177:4609-4618, 1995). To gain additional insight into both the role and site of action of AppA in the regulatory network governing photosynthesis gene expression, we investigated the relationships between AppA and other known regulators of photosynthesis gene expression. We determined that AppA is dispensable for development of the photosynthetic apparatus in a ppsR null background, where PpsR is an aerobic repressor of genes involved in photopigment biosynthesis and puc operon expression. Moreover, all suppressors of an appA null mutation thus far isolated, showing improved photosynthetic growth, were found to contain mutations in the ppsR gene. Because ppsR gene expression in R. sphaeroides 2.4.1 appears to be largely independent of growth conditions, we suggest that regulation of repressor activity occurs predominately at the protein level. We have also found that PpsR functions as a repressor not only under aerobic but under anaerobic photosynthetic conditions and thereby is involved in regulating the abundance of t...Continue Reading

References

Apr 1, 1979·Proceedings of the National Academy of Sciences of the United States of America·D H Figurski, D R Helinski
Nov 1, 1995·Journal of Bacteriology·J H Zeilstra-Ryalls, S Kaplan
Jun 4, 1993·Cell·J S Parkinson
Feb 1, 1957·Journal of Cellular Physiology·G COHEN-BAZIRER Y STANIER

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Citations

Feb 22, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Carl BauerShinji Masuda
Aug 19, 2005·Proceedings of the National Academy of Sciences of the United States of America·Astrid JungIlme Schlichting
Dec 15, 2007·The Journal of Biological Chemistry·Eui-Jin KimJeong K Lee
Oct 11, 2008·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·A Losi, W Gärtner
Feb 22, 2011·Applied Microbiology and Biotechnology·Thomas DrepperKarl-Erich Jaeger
Jun 10, 2015·Journal of Bacteriology·Arjan J Vermeulen, Carl E Bauer
Aug 14, 2015·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Peter Hegemann
Mar 17, 2001·Molecular Microbiology·J I Oh, S Kaplan
Aug 5, 2004·Proceedings of the National Academy of Sciences of the United States of America·Yuchen HanGabriele Klug
Mar 21, 2007·Photosynthesis Research·David W Bollivar
Feb 11, 2014·Applied Microbiology and Biotechnology·Ilya B TikhClaudia Schmidt-Dannert
Jun 4, 2013·Nature Structural & Molecular Biology·Andreas WinklerIlme Schlichting
Mar 4, 2015·Journal of Bacteriology·Kimberly C LemmerTimothy J Donohue
May 10, 2002·Nature·Eric GiraudAndré Verméglio
May 18, 2007·Annual Review of Microbiology·Chris MackenzieSamuel Kaplan
Jun 2, 2004·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Eric GiraudAndré Verméglio
Feb 20, 2008·Photochemistry and Photobiology·Yoichi YamazakiMikio Kataoka
Nov 18, 2003·Annual Review of Genetics·Mark S B Paget, Mark J Buttner
Nov 22, 2007·Photochemistry and Photobiology·Aba Losi
Jul 31, 2007·The Journal of Biological Chemistry·Oleg V MoskvinMark Gomelsky
Feb 28, 2015·PLoS Computational Biology·Saheed ImamTimothy J Donohue
Mar 22, 2012·Nucleic Acids Research·Sebastian MetzGabriele Klug
Jun 14, 2005·Molecular Microbiology·Sylvie ElsenEric Giraud
Jul 26, 2002·Molecular Microbiology·Stephan BraatschGabriele Klug
Oct 7, 2005·Microbiology·Linyong MaoHaluk Resat
Nov 2, 2004·Journal of Bacteriology·Stephan BraatschMark Gomelsky

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