Cytolethal Distending Toxin Gene Cluster in Enterohemorrhagic Escherichiacoli O157:H− and O157:H7: Characterization and Evolutionary Considerations
2003 ◽
Vol 71
(6)
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pp. 3634-3638
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ABSTRACT We identified a cytolethal distending toxin (cdt) gene cluster in 87, 6, and 0% of sorbitol-fermenting (SF) enterohemorrhagic Escherichia coli (EHEC) O157:H−, EHEC O157:H7, and E. coli O55:H7/H− strains, respectively. The toxin was expressed by the wild-type EHEC O157 strains and by a cdt-containing cosmid from a library of SF EHEC O157:H− strain 493/89. The cdt flanks in strain 493/89 were homologous to bacteriophages P2 and lambda. Our data demonstrate that cdt, encoding a potential virulence factor, is present in the EHEC O157 complex and suggest that cdt may have been acquired by phage transduction.
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2003 ◽
Vol 188
(12)
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pp. 1892-1897
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1999 ◽
Vol 67
(8)
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pp. 3900-3908
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2009 ◽
Vol 22
(7)
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pp. 783-789
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2014 ◽
Vol 81
(5)
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pp. 1708-1714
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2004 ◽
Vol 72
(11)
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pp. 6589-6596
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2005 ◽
Vol 73
(1)
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pp. 342-351
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2019 ◽
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