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 Lobner-Olesen and M. G. Marinus

Journal of Bacteriology 190 ( 1 ): 438 - 441 , 2008