Genetic Diversity of Intimin Genes of Attaching and Effacing Escherichia coli Strains
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چکیده
منابع مشابه
Genetic diversity of intimin genes of attaching and effacing Escherichia coli strains.
In this study, we determined the sequences of four intimin variant genes detected in attaching and effacing Escherichia coli isolates of human origin. Three of them were novel and were designated eae-eta (eta), eae-iota (iota), and eae-kappa (kappa). The fourth was identical to the recently described eae-zeta (zeta), isolated from a bovine E. coli O84:NM isolate. We compared these sequences wit...
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Attaching and effacing Escherichia coli (AEEC) strains cause histopathological alterations termed “attaching and effacing (A/E) lesions” (8). The ability to cause A/E lesions is encoded on a large bacterial chromosomal pathogenicity island, the locus of enterocyte effacement (LEE). The central portion of LEE encodes intimin (Eae, 94to 97-kDa outer membrane protein) and Tir, the intimin receptor...
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Fecal samples from healthy children under 2 years of age living in Berlin, Germany (205 infants), and Melbourne, Australia (184 infants), were investigated for the presence of attaching and effacing (AE) Escherichia coli (AEEC) strains by screening for eae (intimin) genes. Twenty-seven AEEC strains were isolated from 14 children (7.6%) from Melbourne and from 12 children (5.9%) from Berlin. The...
متن کاملStrains of Escherichia coli O157:H8 from human diarrhoea belong to attaching and effacing class of E coli.
AIMS To determine whether 17 Escherichia coli O157:H8 strains isolated from patients with diarrhoea in the United Kingdom were putative pathogens. METHODS The strains had been isolated by the use of O157 antiserum, available for the detection of Vero cytotoxin (VT) producing strains of E coli O157 that are usually of flagellar (H) type 7, but may also be non-motile. The strains were examined ...
متن کاملBiotype, serotype, and pathogenicity of attaching and effacing enteropathogenic Escherichia coli strains isolated from diarrheic commercial rabbits.
A total of 568 strains of Escherichia coli isolated from healthy and diarrheic rabbits were separated into 11 different biotypes according to the fermentation patterns of four carbohydrates. Strains belonging to biotypes 1 to 3, 6, and 8 induced lesions characteristic for attaching and effacing E. coli (AEEC). They attached to the intestinal epithelium of the terminal small intestine and the la...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 2002
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.40.12.4486-4492.2002