Dam methyltransferase is required for stable lysogeny of the Shiga toxin (Stx2)-encoding bacteriophage 933W of enterohemorrhagic Escherichia coli O157:H7

Kenan C Murphy, Jennifer M Ritchie, Matthew K Waldor, Anders Løbner-Olesen, M G Marinus

31 Citationer (Scopus)

Abstract

Shiga toxin 2 (Stx2), one of the principal virulence factors of enterohemorrhagic Escherichia coli, is encoded by 933W, a lambda-like prophage. 933W prophage induction contributes to Stx2 production, and here, we provide evidence that Dam methyltransferase is essential for maintenance of 933W lysogeny. Our findings are consistent with the idea that the 933W prophage has a relatively low threshold for induction, which may promote Stx2 production during infection.

OriginalsprogEngelsk
TidsskriftJournal of Bacteriology
Vol/bind190
Udgave nummer1
Sider (fra-til)438-41
Antal sider4
ISSN0021-9193
DOI
StatusUdgivet - jan. 2008

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