Two-component signaling and gram negative envelope stress response systems

DM MacRitchie, DR Buelow, NL Price… - … : networks and drug …, 2008 - Springer
Bacteria have evolved complex stress responses that allow them to respond to their
surroundings. In Gram negative bacteria, these stress responses can be compartmentalized …

The Two-Component Network and the General Stress Sigma Factor RpoS (σS) in Escherichia coli

R Hengge - Bacterial Signal Transduction: Networks and Drug …, 2008 - Springer
The general stress sigma factor RpoS (σ s) is induced buring entry into stationary phase and
in response to multiple stress conditions. RpoS is regulated at the levels of transcription …

The Rcs phosphorelay is a cell envelope stress response activated by peptidoglycan stress and contributes to intrinsic antibiotic resistance

ME Laubacher, SE Ades - Journal of bacteriology, 2008 - Am Soc Microbiol
Gram-negative bacteria possess stress responses to maintain the integrity of the cell
envelope. Stress sensors monitor outer membrane permeability, envelope protein folding …

The rpoS mRNA leader recruits Hfq to facilitate annealing with DsrA sRNA

TJ Soper, SA Woodson - Rna, 2008 - rnajournal.cshlp.org
Small noncoding RNAs (sRNAs) regulate the response of bacteria to environmental stress in
conjunction with the Sm-like RNA binding protein Hfq. DsrA sRNA stimulates translation of …

Multiple pathways for regulation of σS (RpoS) stability in Escherichia coli via the action of multiple anti‐adaptors

A Bougdour, C Cunning, PJ Baptiste… - Molecular …, 2008 - Wiley Online Library
Summary σS, the stationary phase sigma factor of Escherichia coli and Salmonella, is
regulated at multiple levels. The σS protein is unstable during exponential growth and is …

Impact of the RNA Chaperone Hfq on the Fitness and Virulence Potential of Uropathogenic Escherichia coli

RR Kulesus, K Diaz-Perez, ES Slechta… - Infection and …, 2008 - Am Soc Microbiol
Hfq is a bacterial RNA chaperone involved in the posttranscriptional regulation of many
stress-inducible genes via small noncoding RNAs. Here, we show that Hfq is critical for the …

Regulating the regulators: how ribonucleases dictate the rules in the control of small non-coding RNAs

SC Viegas, CM Arraiano - RNA biology, 2008 - Taylor & Francis
Gene regulation was long thought to be controlled almost entirely by proteins that bind to
DNA and RNA. Over the last years, it has become clear that small non-coding RNAs …

Role of the Histone-Like Nucleoid Structuring Protein in the Regulation of rpoS and RpoS-Dependent Genes in Vibrio cholerae

AJ Silva, SZ Sultan, W Liang, JA Benitez - Journal of bacteriology, 2008 - Am Soc Microbiol
Production of the Zn-metalloprotease hemagglutinin (HA)/protease by Vibrio cholerae has
been reported to enhance enterotoxicity in rabbit ileal loops and the reactogenicity of live …

The role of RpoS in bacterial adaptation

T Dong, C Joyce, HE Schellhorn - Bacterial Physiology: A Molecular …, 2008 - Springer
Bacterial adaptation to changing conditions and to the host environment requires
coordinated changes in gene expression that permit more efficient use of metabolites and …

Modulation of the Rcs-mediated signal transfer by conformational flexibility

VV Rogov, K Schmöe, F Löhr, NY Rogova, F Bernhard… - 2008 - portlandpress.com
The Rcs (regulator of capsule synthesis) signalling complex comprises the membrane-
associated hybrid sensor kinases RcsC and RcsD, the transcriptional regulator RcsB and …