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Mostrando ítems 1-10 de 11
Artículo
Roles of the outer membrane protein asmA of Salmonella enterica in the control of marRAB expression and invasion of epithelial cells
(American Society for Microbiology, 2009)
A genetic screen for suppressors of bile sensitivity in DNA adenine methylase (dam) mutants of Salmonella enterica serovar Typhimurium yielded insertions in an uncharacterized locus homologous to the Escherichia coli asmA ...
Artículo
Identification of the Salmonella enterica damX gene product, an inner membrane protein involved in bile resistance
(American Society for Microbiology, 2010)
The damX gene product of Salmonella enterica serovar Typhimurium is a protein located in the inner membrane. DamX migrates as a 70-kDa protein in SDS-PAGE even though the predicted protein size is 46 kDa. Synthesis of DamX ...
Artículo
DNA adenine methylation regulates virulence gene expression in Salmonella enterica serovar typhimurium
(American Society for Microbiology, 2006)
Transcriptomic analyses during growth in Luria-Bertani medium were performed in strain SL1344 of Salmonella enterica serovar Typhimurium and in two isogenic derivatives lacking Dam methylase. More genes were repressed than ...
Artículo
Role of the RecBCD recombination pathway in Salmonella virulence
(American Society for Microbiology, 2002)
Mutants of Salmonella enterica lacking the RecBC function are avirulent in mice and unable to grow inside macrophages (N. A. Buchmeier, C. J. Lipps, M. Y. H. So, and F. Heffron, Mol. Microbiol. 7:933-936, 1993). The ...
Artículo
Dormant intracellular salmonella enterica serovar typhimurium discriminates among salmonella pathogenicity island 2 effectors to persist inside fibroblasts
(American Society for Microbiology, 2014-01)
Salmonella enterica uses effector proteins delivered by type III secretion systems (TTSS) to colonize eukaryotic cells. Recent in vivo studies have shown that intracellular bacteria activate the TTSS encoded by Salmonella ...
Artículo
Genome expression analysis of nonproliferating intracellular Salmonella enterica serovar ty phimurium unravels an acid pH-dependent PhoP-PhoQ response essential for dormancy
(American Society for Microbiology, 2013-01)
Genome-wide expression analyses have provided clues on how Salmonella proliferates inside cultured macrophages and epithelial cells. However, in vivo studies show that Salmonella does not replicate massively within host ...
Artículo
The GATC-binding protein SeqA is required for bile resistance and virulence in Salmonella enterica serovar Typhimurium
(American Society for Microbiology, 2007)
Disruption of the seqA gene of Salmonella enterica serovar Typhimurium causes defects similar to those described in E. coli: filament formation, aberrant nucleoid segregation, induction of the SOS response, envelope ...
Artículo
Cell Division Inhibition in Salmonella typhimurium Histidine-Constitutive Strains: an ftsI-Like Defect in the Presence of Wild-Type Penicillin-Binding Protein 3 Levels
(American Society for Microbiology, 1998)
Histidine-constitutive (Hisc) strains of Salmonella typhimurium undergo cell division inhibition in the presence of high concentrations of a metabolizable carbon source. Filaments formed by Hisc strains show constrictions ...
Artículo
Epigenetic Control of Salmonella enterica O-Antigen Chain Length: A Tradeoff between Virulence and Bacteriophage Resistance
(Public Library of Science, 2015)
The Salmonella enterica opvAB operon is a horizontally-acquired locus that undergoes phase variation under Dam methylation control. The OpvA and OpvB proteins form intertwining ribbons in the inner membrane. Synthesis of ...
Artículo
Selection of small-colony variants of salmonella enterica serovar typhimurium in nonphagocytic eucaryotic cells
(American Society for Microbiology, 2003-07)
Salmonella enterica strains are enteropathogenic bacteria that survive and proliferate within vacuolar compartments of epithelial and phagocytic cells. Recently, it has been reported that fibroblast cells are capable of ...