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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/26012
Title: Characterization of a putative virulence island in the chromosome of uropathogenic Escherichia coli possessing a gene encoding a uropathogenic-specific protein
Authors: H. Kurazono
S. Yamamoto
M. Nakano
G. B. Nair
A. Terai
W. Chaicumpa
H. Hayashi
Okayama University
University of Tsukuba
Hamamatsu Rosai Hospital
National Institute of Cholera and Enteric Diseases India
Kyoto University
Mahidol University
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Jan-2000
Citation: Microbial Pathogenesis. Vol.28, No.3 (2000), 183-189
Abstract: This study was initiated to search for a homologue of the Vibrio cholerae zot gene in uropathogenic Escherichia coli (UPEC) using a specific DNA probe. The faint signal obtained at low stringency with some UPEC strains associated with prostatitis cases prompted us to examine UPEC strains by PCR using primers designed from the conserved regions of the proteins of the Zot group of putative NTPases containing the classical NTP binding motif. This led to the discovery of a DNA fragment in UPEC strains which hybridized with a probe designed from the PCR. Further analysis of this DNA fragment revealed an ORF which was designated as uropathogenic specific protein (Usp). The gene encoding Usp was 1038 bp long and codes for 346 amino acids with an appropriate SD sequence. Upstream and downstream analysis of usp revealed motifs of prokaryotic consensus promoters and three small ORFs with SDs and ribosome binding sites transcribed in the same direction of usp. The proximity of these set of genes in a specific area of the bacterial chromosome resembling a block of genes preferentially associated with UPEC coupled with the presence of a motif matching that of a Tn3 transposon family lead us to believe that this Could be an hitherto unknown pathogenicity island. (C) 2000 Academic Press.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0033811977&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/26012
ISSN: 08824010
Appears in Collections:Scopus 1991-2000

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