Results 11 to 20 of about 11,832 (221)

RpoS role in virulence and fitness in enteropathogenic Escherichia coli. [PDF]

PLoS ONE, 2017
Enteropathogenic Escherichia coli (EPEC) is a diarrheagenic pathogen that afflicts infants in developing countries. The most important virulence trait of EPEC is its ability to intimately adhere to cells in the small intestine, and to elicit diarrhea ...
Gardênia Márcia Silva Campos Mata, Gerson Moura Ferreira, Beny Spira   +2 more
doaj   +2 more sources

Polymorphism and selection of rpoS in pathogenic Escherichia coli [PDF]

BMC Microbiology, 2009
Background Though RpoS is important for survival of pathogenic Escherichia coli in natural environments, polymorphism in the rpoS gene is common. However, the causes of this polymorphism and consequential physiological effects on gene expression in ...
Dong Tao, Chiang Sarah M, Joyce Charlie, Yu Rosemary, Schellhorn Herb E   +4 more
doaj   +3 more sources

RPO semantics for mobile ambients [PDF]

Mathematical Structures in Computer Science, 2014
In this paper we focus on the synthesis of labelled transition systems (LTSs) for process calculi using Mobile Ambients (MAs) as a testbed. Our proposal is based on a graphical encoding: a process is mapped into a graph equipped with interfaces such that the denotation is fully abstract with respect to the standard structural congruence.
Bonchi Filippo, GADDUCCI, FABIO, Monreale Giacoma Valentina   +2 more
openaire   +4 more sources

Role of RpoS in Virulence of Pathogens [PDF]

Infection and Immunity, 2010
ABSTRACT Understanding mechanisms of bacterial pathogenesis is critical for infectious disease control and treatment. Infection is a sophisticated process that requires the participation of global regulators to coordinate expression of not only genes coding for virulence factors but also those involved in other physiological ...
Tao, Dong, Herb E, Schellhorn
openaire   +2 more sources

Hfq binding changes the structure of Escherichia coli small noncoding RNAs OxyS and RprA, which are involved in the riboregulation of rpoS [PDF]

, 2013
: OxyS and RprA are two small noncoding RNAs (sRNAs) that modulate the expression of rpoS, encoding an alternative sigma factor that activates transcription of multiple Escherichia coli stress-response genes.
Taylor, James E., Callaghan, Anastasia J., Helen A. Vincent, Phillips, Jack O., Cary, Peter, Vincent, H., Peter D. Cary, Sobott, F., Jack O. Phillips, Frank Sobott, Vincent, Helen A., Henderson, Charlotte A., Stone, Carlanne, Alessandra Casamento, Henderson, Charlotte, Carlanne M. Stone, Anastasia J. Callaghan, Darren M. Gowers, Cary, Peter D., Charlotte A. Henderson, James E.N. Taylor, Casamento, A., Callaghan, Anastasia, Phillips, Jack, Gowers, Darren, Casamento, Alessandra, Stone, Carlanne M., Sobott, Frank, Gowers, Darren M.   +28 more
core   +1 more source

RpoS regulates a novel type of plasmid DNA transfer in Escherichia coli. [PDF]

PLoS ONE, 2012
Spontaneous plasmid transformation of Escherichia coli is independent of the DNA uptake machinery for single-stranded DNA (ssDNA) entry. The one-hit kinetic pattern of plasmid transformation indicates that double-stranded DNA (dsDNA) enters E. coli cells
Yanmei Zhang, Chunyu Shi, Jiafei Yu, Jingjing Ren, Dongchang Sun   +4 more
doaj   +1 more source

Modulation of RPOS Expression by an Inducible RPOS Sense and Antisense [PDF]

, 2004
Escherichia coli and several other bacteria express a stationary phase sigma factor, RpoS, for RNA polymerase that is responsible for inducing the expression of stress response genes.
Tariq, Saima
core   +1 more source

Expression of Salmonella typhimurium rpoS and rpoS-dependent genes in the intracellular environment of eukaryotic cells [PDF]

Infection and Immunity, 1996
Adaptation to the intracellular environment of host cells is crucial for the pathogenesis of Salmonella infections. The alternative sigma factor RpoS is a global regulator of gene expression during starvation and stress conditions and is required for virulence in Salmonella spp.
C Y, Chen, L, Eckmann, S J, Libby, F C, Fang, S, Okamoto, M F, Kagnoff, J, Fierer, D G, Guiney   +7 more
openaire   +2 more sources

Genotypic characterisation of the Erwinia genus by PCR-RFLP analysis of rpoS gene

Plant Protection Science, 2002
Genotypic characterisation of the members of the genus Erwinia, based on the PCR-RFLP analysis of a fragment of the rpoS gene was done. PCR primers deduced from described rpoS gene sequences of E.
M. Waleron, K. Waleron, E. Łojkowska
doaj   +1 more source

Modes of Regulation of RpoS by H-NS [PDF]

Journal of Bacteriology, 2006
ABSTRACT Regulated degradation of RpoS requires RssB and ClpXP protease. Mutations in hns increase both RpoS synthesis and stability, causing a twofold increase in synthesis and almost complete stabilization of RpoS, independent of effects on synthesis and independent of phosphorylation of RssB.
YanNing, Zhou, Susan, Gottesman
openaire   +2 more sources