Reduction of N-oxide and S-oxide compounds by Escherichia coli.
نویسندگان
چکیده
منابع مشابه
Nitrosative stress in Escherichia coli: reduction of nitric oxide.
The ability of enteric bacteria to protect themselves against reactive nitrogen species generated by their own metabolism, or as part of the innate immune response, is critical to their survival. One important defence mechanism is their ability to reduce NO (nitric oxide) to harmless products. The highest rates of NO reduction by Escherichia coli K-12 were detected after anaerobic growth in the...
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Exposure of Escherichia coli to nitric oxide (NO) or nitrosating agents causes significant changes in patterns of gene expression. Three recent studies have used microarrays to analyse the response of the E. coli transcriptome to NO and nitrosative stress. Drawing on the array data, I review our current understanding of the E. coli regulatory systems that are involved.
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Shiga-toxin (Stx) is the cardinal virulence factor of enterohemorrhagic Escherichia coli (EHEC). The genes encoding Stx are carried by a lambdoid phage integrated in the bacterial genome and are fully expressed after a bacterial SOS response induced by DNA-damaging agents. Because nitric oxide (NO) is an essential mediator of the innate immune response of infected colonic mucosa, we aimed to de...
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We have studied the interaction of the menaquinol analog 2-n-heptyl-4-hydroxyquinoline-N-oxide (HOQNO) with dimethyl sulfoxide reductase (DmsABC) and the effect of a mutation in the DmsC subunit (DmsABCH65R) using fluorescence titration and stopped-flow methods. The titration data show that the HOQNO fluorescence is quenched when HOQNO binds to DmsABC. The binding stoichiometry is determined to...
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Escherichia coli is being one of the common microbial flora of gastrointestinal and respiratory tracts of poultry but may become pathogenic to both. Antibiotic treatment is considered the most important issue that promotes the emergence, selection and deploying of antibiotic-resistant microorganisms in veterinary medicine. With the increase of resistant to antibiotics, many researchers have tri...
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ژورنال
عنوان ژورنال: The Journal of General and Applied Microbiology
سال: 1989
ISSN: 1349-8037,0022-1260
DOI: 10.2323/jgam.35.253