The sigma S level in starving Escherichia coli cells increases solely as a result of its increased stability, despite decreased synthesis

Molecular Microbiology
H I ZgurskayaA Matin

Abstract

The sigma S level in starving (stationary phase) Escherichia coli cells increases four-to sixfold following growth in a defined or a complex medium. Chemostat-grown cells, subjected to increasing carbon starvation, also become progressively richer in sigma S content. These increases occur despite reduced transcription of the sigma S-encoding gene, rpoS, and translation of rpoS mRNA, and result solely from a large increase in the stability of the sigma protein. Previous results, based on rpoS::lacZ transcriptional and translational fusions, and on methionine incorporation in sigma S, had suggested increased synthesis of sigma S in starving cells. Alternative explanations for these results consistent with the conclusions of this paper are discussed.

Citations

Jul 20, 2001·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·A L Koch
Jan 13, 2006·Archives of Microbiology·Natalia Pasternak TaschnerBeny Spira
Jan 27, 1999·Mutation Research·A Eisenstark
Nov 30, 2002·Current Opinion in Microbiology·Thomas Nyström
Mar 6, 1999·Current Opinion in Microbiology·I Cases, V de Lorenzo
May 4, 2004·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Michael R Hamblin, Tayyaba Hasan
Apr 8, 2006·Genes & Development·Alexandre BougdourSusan Gottesman
May 23, 2002·Genes & Development·Miki JishageThomas Nyström
Feb 10, 2004·Applied and Environmental Microbiology·D F AckerleyA Matin
Sep 22, 2009·Journal of Bacteriology·Valerie J CarabettaThomas J Silhavy
Sep 22, 2001·Journal of Bacteriology·N RuizT J Silhavy
Jul 27, 2002·Journal of Bacteriology·Larissa BrownMichael Cashel
Nov 4, 2005·Journal of Bacteriology·Celeste N PetersonThomas J Silhavy
Feb 18, 2005·Journal of Bacteriology·Matthew Hirsch, Thomas Elliott
Apr 20, 2006·Journal of Bacteriology·Celeste N PetersonThomas J Silhavy
Jun 7, 2011·Annual Review of Microbiology·Aurelia BattestiSusan Gottesman
Jan 24, 2013·Molecular Systems Biology·Sara BerthoumieuxJohannes Geiselmann
Oct 6, 2000·Annual Review of Microbiology·A Ishihama
Jun 1, 2011·FEMS Microbiology Letters·Cecilia PiniAna Segura
Oct 6, 2020·Frontiers in Microbiology·Diego A Vargas-Blanco, Scarlet S Shell

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