KatP contributes to OxyR-regulated hydrogen peroxide resistance in Escherichia coli serotype O157 : H7
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چکیده
منابع مشابه
The Importance of Escherichia coli O157:H7 in Foodborn Infection
Enterohemorrhagic Escherichia coli O157: H7 is one of the most important causes of bloody diarrhea. This bacterium is able to make bloody diarrhea or Hemorrhagic Colitis (HC) through verotoxin or shigatoxin production, and in acute forms it may lead to Hemolytic Uremic Syndrome (HUS) or Thrombotic Thrombocytopenic Purpurea (TTP). Contamination with E. coli O157:H7 usually happens after consumpt...
متن کاملManganese import is a key element of the OxyR response to hydrogen peroxide in Escherichia coli.
Very little manganese is imported into Escherichia coli under routine growth conditions: the import system is weakly expressed, the manganese content is low, and a manganese-dependent enzyme is not correctly metallated. Mutants that lack MntH, the importer, grow at wild-type rates, indicating that manganese plays no critical role. However, MntH supports the growth of iron-deficient cells, sugge...
متن کاملEscherichia coli O157:H7 infection in Colombia.
To the Editor: The prevalence of Escherichia coli O157:H7 in Colombia is not known; we conducted a study to determine its prevalence in children with infectious diarrhea, in adult cattle, and in ground beef. Between March 1996 and March 1997, we examined 538 children under 5 years of age with infectious diarrhea who had been admitted to either of the two children's hospitals in Bogotá. Diarrhea...
متن کاملCharacteristics of binding of Escherichia coli serotype O157:H7 strain CL-49 to purified intestinal mucin.
Purified rat intestinal mucin was used as a model mucin to study the binding of Escherichia coli serotype O157:H7, a human pathogen associated with outbreaks of hemorrhagic colitis and hemolytic uremic syndrome. Of six O157:H7 strains, only one strain (designated CL-49) bound to rat (and other) intestinal mucins by a specific and saturable process. Binding was observed only after the bacteria w...
متن کاملA DNA Vaccine against Escherichia coli O157:H7
Background: Infection with Escherichia coli O157:H7 rarely leads to bloody diarrhea and causes hemolytic uremic syndrome with renal failure that can be deadly dangerous. Intimin, translocated Intimin receptor (Tir), and enterohemorrhagic E. coli (EHEC) secreted protein A (EspA) proteins are the virulence factors expressed by locus of enterocyte effacement locus of EHEC. This bacterium needs Es...
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ژورنال
عنوان ژورنال: Microbiology
سال: 2009
ISSN: 1350-0872,1465-2080
DOI: 10.1099/mic.0.031435-0