scholarly journals Genes for tRNAArg Located in the Upstream Region of the Shiga Toxin II Operon in Enterohemorrhagic Escherichia coli O157:H7

DNA Research ◽  
1999 ◽  
Vol 6 (1) ◽  
pp. 71-73 ◽  
Author(s):  
N. Kanjo
Keyword(s):  
Escherichia Coli ◽  
Shiga Toxin ◽  
Enterohemorrhagic Escherichia Coli ◽  
Upstream Region ◽  
Escherichia Coli O157

scholarly journals The Shiga toxin 2 production level in enterohemorrhagic Escherichia coli O157:H7 is correlated with the subtypes of toxin-encoding phage

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yoshitoshi Ogura ◽  
Shakhinur Islam Mondal ◽  
Md Rakibul Islam ◽  
Toshihiro Mako ◽  
Kokichi Arisawa ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Shiga Toxin ◽  
Enterohemorrhagic Escherichia Coli ◽  
Production Level ◽  
Escherichia Coli O157 ◽  
Shiga Toxin 2

scholarly journals Dam Methyltransferase Is Required for Stable Lysogeny of the Shiga Toxin (Stx2)-Encoding Bacteriophage 933W of Enterohemorrhagic Escherichia coli O157:H7

2007 ◽  
Vol 190 (1) ◽  
pp. 438-441 ◽  
Author(s):  
Kenan C. Murphy ◽  
Jennifer M. Ritchie ◽  
Matthew K. Waldor ◽  
Anders Løbner-Olesen ◽  
M. G. Marinus
Keyword(s):  
Escherichia Coli ◽  
Virulence Factors ◽  
Shiga Toxin ◽  
Enterohemorrhagic Escherichia Coli ◽  
Escherichia Coli O157 ◽  
Prophage Induction ◽  
Shiga Toxin 2 ◽  
Low Threshold

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.

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