A subtractive hybridisation analysis of genomic differences between the uropathogenic E. coli strain 536 and the E. coli K-12 strain MG1655

B Janke; U Dobrindt; J Hacker; G Blum-Oehler

doi:10.1111/j.1574-6968.2001.tb10651.x

A subtractive hybridisation analysis of genomic differences between the uropathogenic E. coli strain 536 and the E. coli K-12 strain MG1655

FEMS Microbiol Lett. 2001 May 15;199(1):61-6. doi: 10.1111/j.1574-6968.2001.tb10651.x.

Authors

B Janke¹, U Dobrindt, J Hacker, G Blum-Oehler

Affiliation

¹ Institut für Molekulare Infektionsbiologie, Universität Würzburg, Röntgenring 11, D-97070, Würzburg, Germany.

PMID: 11356568
DOI: 10.1111/j.1574-6968.2001.tb10651.x

Abstract

Suppression subtractive hybridisation (SSH) was performed to identify genomic differences between the uropathogenic Escherichia coli strain 536 and the non-pathogenic E. coli K-12 strain MG1655. In total, 22 DNA fragments were isolated which were specific for strain 536. Five of these fragments showed homology to known virulence determinants and four fragments matched genes for lipopolysaccharide (LPS) or capsule biosynthesis and a siderophore receptor. Seven fragments did not show any homology to known genes. These fragments may represent parts of putative pathogenicity islands (PAIs). Whereas two fragments were highly specific for uropathogenic E. coli (UPEC), the other fragments could also be detected among the other tested wild-type strains.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bacterial Proteins / genetics
Chromosome Mapping
DNA, Bacterial / analysis*
Electrophoresis, Gel, Pulsed-Field
Escherichia coli / classification*
Escherichia coli / genetics
Escherichia coli / pathogenicity*
Escherichia coli Infections / microbiology*
Genome, Bacterial*
Humans
Nucleic Acid Hybridization
Urinary Tract Infections / microbiology*
Virulence / genetics

Substances

Bacterial Proteins
DNA, Bacterial