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Mostrando ítems 441-443 de 443
Artículo
Copy Number Heterogeneity in the Virulence Plasmid of Salmonella enterica
(Frontiers Media, 2020)
Quantitative PCR analysis shows that the virulence plasmid of Salmonella enterica serovar Typhimurium (pSLT) is a low-copy-number plasmid, with 1–2 copies per chromosome. However, fluorescence microscopy observation of ...
Artículo
Mechanism of coordinated synthesis of the antagonistic regulatory proteins NifL and NifA of Klebsiella pneumoniae
(American Society for Microbiology, 1996-12)
The nifLA operon of Klebsiella pneumoniae codes for the two antagonistic regulatory proteins which control expression of all other nitrogen fixation genes. NifA is a transcriptional activator, and NifL inhibits NifA. The ...
Artículo
Regulation of the Salmonella enterica std fimbrial operon by DNA adenine methylation, SeqA, and HdfR
(American Society for Microbiology, 2008)
DNA adenine methylase (dam) mutants of Salmonella enterica serovar Typhimurium grown under laboratory conditions express the std fimbrial operon, which is tightly repressed in the wild type. Here, we show that uncontrolled ...