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Artículo
IS200: an old and still bacterial transposon
(Springer Verlag, 2004)
IS200 is a mobile element found in a variety of eubacterial genera, such as Salmonella, Escherichia, Shigella, Vibrio, Enterococcus, Clostridium, Helicobacter, and Actinobacillus. In addition, IS200-like elements are found ...
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 ...
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Artículo
Regulation of conjugal transfer by Lrp and dam methylation in plasmid R100
(Sociedad Española de Microbiología, 2005-12)
Conjugal transfer of the F-like plasmid R100 occurs at higher frequencies in the absence of DNA adenine methylation. Lower levels of R100-encoded FinP RNA were found in a Dam- host, suggesting that Dam methylation regulates ...
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 ...
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Small RNA-based feedforward loop with AND-gate logic regulates extrachromosomal DNA transfer in Salmonella
(National Academy of Sciences, 2015)
Horizontal gene transfer via plasmid conjugation is a major driving force in microbial evolution but constitutes a complex process that requires synchronization with the physiological state of the host bacteria. Although ...
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Changes of ploidy during the Azotobacter vinelandii growth cycle
(American Society for Microbiology, 1994)
The size of the Azotobacter vinelandii chromosome is ~4,700 kb, as calculated by pulsed-field electrophoretic separation of fragments digested with the rarely cutting endonucleases SpeI and SwaI. Surveys of DNA content per ...
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OxyR-dependent formation of DNA methylation patterns in OpvABOFF and OpvABON cell lineages of Salmonella enterica
(Oxford University Press, 2015)
Phase variation of the Salmonella enterica opvAB operon generates a bacterial lineage with standard lipopolysaccharide structure (OpvABOFF) and a lineage with shorter O-antigen chains (OpvABON). Regulation of OpvAB lineage ...
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Suppression of the pleiotropic effects of HisH and HisF overproduction identifies four novel loci on the Salmonella typhimurium chromosome: osmH, sfiW, sfiX, and sfiY
(American Society for Microbiology, 1995)
Insertion mutations that suppress some or all the pleiotropic effects of HisH and HisF overproduction were obtained by using transposons Tn10dTet and Tn10dCam. All suppressor mutations proved to be recessive, indicating ...
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 ...