Construction and characterization of an isogenic slt-ii deletion mutant of enterohemorrhagic Escherichia coli.
نویسندگان
چکیده
Enterohemorrhagic Escherichia coli (EHEC) produces Shiga-like toxins (SLT), potent protein synthesis inhibitors. To further dissect the role of SLT-II in the course of disease, we have constructed E. coli TUV86-2, an isogenic SLT-II-negative mutant of EHEC strain 86-24. The slt-ii gene was inactivated by suicide vector mutagenesis. We also isolated derivatives of strain 86-24 that were cured of the phage carrying the toxin genes.
منابع مشابه
The specific activities of Shiga-like toxin type II (SLT-II) and SLT-II-related toxins of enterohemorrhagic Escherichia coli differ when measured by Vero cell cytotoxicity but not by mouse lethality.
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ورودعنوان ژورنال:
- Infection and immunity
دوره 66 5 شماره
صفحات -
تاریخ انتشار 1998