Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Phylogenetic analysis of enteroaggregative and diffusely adherent Escherichia coli.

Literature DB >> 10338471

Phylogenetic analysis of enteroaggregative and diffusely adherent Escherichia coli.

J R Czeczulin¹, T S Whittam, I R Henderson, F Navarro-Garcia, J P Nataro.

Abstract

The phylogenetics of the various pathotypes of diarrheagenic Escherichia coli are not completely understood. In this study, we identified several plasmid and chromosomal genes in the pathogenic enteroaggregative E. coli (EAEC) prototype strain 042 and determined the prevalence of these loci among EAEC and diffusely adherent E. coli strains. The distribution of these genes is analyzed within an evolutionary framework provided by the characterization of allelic variation in housekeeping genes via multilocus enzyme electrophoresis. Our data reveal that EAEC strains are heterogeneous with respect to chromosomal and plasmid-borne genes but that the majority harbor a member of a conserved family of virulence plasmids. Comparison of plasmid and chromosomal relatedness of strains suggests clonality of chromosomal markers and a limited transfer model of plasmid distribution.

Entities: Species

Mesh：

Substances：
DNA, Bacterial

Year: 1999 PMID： 10338471 PMCID： PMC96572 DOI： 10.1128/IAI.67.6.2692-2699.1999

Source DB: PubMed Journal: Infect Immun ISSN： 0019-9567 Impact factor: 3.441

40 in total

1. A sensitive and specific DNA probe to identify enteroaggregative Escherichia coli, a recently discovered diarrheal pathogen.

Authors: B Baudry; S J Savarino; P Vial; J B Kaper; M M Levine
Journal: J Infect Dis Date: 1990-06 Impact factor: 5.226

2. Association of Escherichia coli HEp-2 adherence patterns with type and duration of diarrhoea.

Authors: A Cravioto; A Tello; A Navarro; J Ruiz; H Villafán; F Uribe; C Eslava
Journal: Lancet Date: 1991-02-02 Impact factor: 79.321

3. Aggregative adherence fimbria I expression in enteroaggregative Escherichia coli requires two unlinked plasmid regions.

Authors: J P Nataro; D Yikang; J A Giron; S J Savarino; M H Kothary; R Hall
Journal: Infect Immun Date: 1993-03 Impact factor: 3.441

4. Enteroaggregative Escherichia coli and Salmonella associated with nondysenteric persistent diarrhea.

Authors: M K Bhan; V Khoshoo; H Sommerfelt; P Raj; S Sazawal; R Srivastava
Journal: Pediatr Infect Dis J Date: 1989-08 Impact factor: 2.129

5. Enteroaggregative Escherichia coli elaborate a heat-stable enterotoxin demonstrable in an in vitro rabbit intestinal model.

Authors: S J Savarino; A Fasano; D C Robertson; M M Levine
Journal: J Clin Invest Date: 1991-04 Impact factor: 14.808

6. Clonal relationships among Escherichia coli strains that cause hemorrhagic colitis and infantile diarrhea.

Authors: T S Whittam; M L Wolfe; I K Wachsmuth; F Orskov; I Orskov; R A Wilson
Journal: Infect Immun Date: 1993-05 Impact factor: 3.441

7. Aggregative adherence fimbriae I of enteroaggregative Escherichia coli mediate adherence to HEp-2 cells and hemagglutination of human erythrocytes.

Authors: J P Nataro; Y Deng; D R Maneval; A L German; W C Martin; M M Levine
Journal: Infect Immun Date: 1992-06 Impact factor: 3.441

8. Potential role of adherence traits of Escherichia coli in persistent diarrhea in an urban Brazilian slum.

Authors: C A Wanke; J B Schorling; L J Barrett; M A Desouza; R L Guerrant
Journal: Pediatr Infect Dis J Date: 1991-10 Impact factor: 2.129

9. Identification and characterization of virK, a virulence-associated large plasmid gene essential for intercellular spreading of Shigella flexneri.

Authors: N Nakata; C Sasakawa; N Okada; T Tobe; I Fukuda; T Suzuki; K Komatsu; M Yoshikawa
Journal: Mol Microbiol Date: 1992-08 Impact factor: 3.501

10. AggR, a transcriptional activator of aggregative adherence fimbria I expression in enteroaggregative Escherichia coli.

Authors: J P Nataro; D Yikang; D Yingkang; K Walker
Journal: J Bacteriol Date: 1994-08 Impact factor: 3.490

94 in total

Review 1. Bacteria are different: observations, interpretations, speculations, and opinions about the mechanisms of adaptive evolution in prokaryotes.

Authors: B R Levin; C T Bergstrom
Journal: Proc Natl Acad Sci U S A Date: 2000-06-20 Impact factor: 11.205

Review 2. Virulence functions of autotransporter proteins.

Authors: I R Henderson; J P Nataro
Journal: Infect Immun Date: 2001-03 Impact factor: 3.441

3. Pyelonephritogenic diffusely adhering Escherichia coli EC7372 harboring Dr-II adhesin carries classical uropathogenic virulence genes and promotes cell lysis and apoptosis in polarized epithelial caco-2/TC7 cells.

Authors: J Guignot; J Breard; M F Bernet-Camard; I Peiffer; B J Nowicki; A L Servin; A B Blanc-Potard
Journal: Infect Immun Date: 2000-12 Impact factor: 3.441

4. Automated ribotyping provides rapid phylogenetic subgroup affiliation of clinical extraintestinal pathogenic Escherichia coli strains.

Authors: O Clermont; C Cordevant; S Bonacorsi; A Marecat; M Lange; E Bingen
Journal: J Clin Microbiol Date: 2001-12 Impact factor: 5.948