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Virulence typing of Escherichia coli using microarrays

被引：23
作者：
van Ijperen, C
Kuhnert, P
Frey, J
Clewley, JP
机构：
[1] Cent Publ Hlth Lab, Mol Biol Unit, London NW9 5HT, England
[2] Univ Bern, Inst Vet Bacteriol, CH-3012 Bern, Switzerland
来源：
MOLECULAR AND CELLULAR PROBES | 2002年 / 16卷 / 05期
关键词：
pathogenic Escherichia coli; microarray; virulence typing; probe hybridisation; genetic diversity;
D O I：
10.1006/mcpr.2002.0437
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
We describe a microarray based broad-range screening technique for Escherichia coli virulence typing. Gene probes were amplified by PCR from a plasmid bank of characterised E. coli virulence genes and were spotted onto a glass slide to form an array of capture probes. Genomic DNA from E coli strains which were to be tested for the presence of these virulence gene sequences was labelled with fluorescent cyanine dyes by random amplification and then hybridised against the array of probes. The hybridisation, washing and data analysis conditions were optimised for glass slides, and the applicability of the method for identifying the presence of the virulence genes was determined using reference strains and clinical isolates. it was found to be a sensitive screening method for detecting virulence genes, and a powerful tool for determining the pathotype of E. coli. It will be possible to expand and automate this microarray technique to make it suitable for rapid and reliable diagnostic screening of bacterial isolates. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：371 / 378
页数：8
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