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Mostrando ítems 31-40 de 64
Artículo
YhdJ, a nonessential CcrM-like DNA methyltransferase of Escherichia coli and Salmonella enterica
(American Society for Microbiology, 2007)
The Caulobacter crescentus DNA adenine methyltransferase CcrM and its homologs in the α-Proteobacteria are essential for viability. CcrM is 34% identical to the yhdJ gene products of Escherichia coli and Salmonella enterica. ...
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
Redox controls reca protein activity via reversible oxidation of its methionine residues
(eLife Sciences Publications, 2021)
Reactive oxygen species (ROS) cause damage to DNA and proteins. Here we report that the RecA recombinase is itself oxidized by ROS. Genetic and biochemical analyses revealed that oxidation of RecA altered its DNA repair ...
Artículo
Host-pathogen interactions in typhoid fever: the model is the message
(AME Publishing Company, 2018)
Artículo
Pseudomonas syringae Differentiates into Phenotypically Distinct Subpopulations During Colonization of a Plant Host
(Wiley-Blackwell, 2016)
Bacterial microcolonies with heterogeneous sizes are formed during colonization of Phaseolus vulgaris by Pseudomonas syringae. Heterogeneous expression of structural and regulatory components of the P. syringae type III ...
Artículo
Analysis of Salmonella lineage-specific traits upon cell sorting
(Frontiers Media SA, 2023-03-29)
Microbial cell individuality is receiving increasing interest in the scientific community. Individual cells within clonal populations exhibit noticeable phenotypic heterogeneity. The advent of fluorescent protein technology ...
Artículo
Molybdenum cofactor (chlorate-resistant) mutants of Klebsiella pneumoniae M5al can use hypoxanthine as the sole nitrogen source.
(American Society for Microbiology, 1992)
Selection for chlorate resistance yields mol (formerly chl) mutants with defects in molybdenum cofactor synthesis. Complementation and genetic mapping analyses indicated that the Klebsiella pneumoniae mol genes are ...
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
Bile-induced curing of the virulence plasmid in Salmonella enterica serovar typhimurium
(American Society for Microbiology, 2006)
Exposure to bile induces curing of the virulence plasmid in Salmonella enterica serovar Typhimurium (pSLT). Disruption of the ccdB gene increases pSLT curing, both spontaneous and induced by bile, suggesting that the pSLT ...
Artículo
Contribution of SPI-1 bistability to Salmonella enterica cooperative virulence: insights from single cell analysis
(Natural Research, 2018)
Salmonella enterica pathogenicity island 1 (SPI-1) is a gene cluster that encodes a type III secretion system and effectors involved in epithelial cell invasion. SPI-1 undergoes bistable expression, with concomitant formation ...