نتایج جستجو برای: effacing
تعداد نتایج: 559 فیلتر نتایج به سال:
The eae gene has recently been shown to be necessary for the attaching and effacing (AE) activity of enteropathogenic Escherichia coli (EPEC) on intestinal epithelial cells. In this paper we report the cloning and nucleotide sequence of a similar gene from a strain of enterohemorrhagic E. coli (EHEC) serotype O157:H7. An EHEC eae sequence was identified which was 97% homologous to the EPEC eae ...
S ummary. Shiga toxin 1 [Stxl]and Stx2-producing enterohemorrhagic Escherichia coll (EHEC) strains belonging to serotypes 0128:H2 and 0128:H12 adhered in a pattern of chains to HCT-8 and HEp-2 cells as well as plastic or glass coverslips. Scanning electron microscopic examination sharply distinguished this adherence pattern from those of EHEC 0157:H7 and enteroaggregative E. coli (EAggEC). The ...
Most Shiga toxin-producing Escherichia coli (STEC) infections that are associated with severe sequelae such as hemolytic uremic syndrome (HUS) are caused by attaching and effacing pathogens that carry the locus of enterocyte effacement (LEE). However, a proportion of STEC isolates that do not carry LEE have been associated with HUS. To clarify the emergence of LEE-negative STEC, we compared the...
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