Draft genome sequences of three O157 enteropathogenic Escherichia coli isolates

We report the draft genome sequences of three enteropathogenic Escherichia coli (EPEC) isolates that display the O157 serogroup but do not have the Shiga toxin genes (stx), which are characteristic of O157 enterohemorrhagic E. coli (EHEC). E. coli strain RN587/1 has the O157:H8 serotype and possesses the EAF plasmid characteristic of typical EPEC (J. B. Kaper, J. P. Nataro, and H. L. Mobley, Nat. Rev. Microbiol. 2:123-140, 2004). The other two isolates, strains C844-97 and C639-08, are both O157: H45 and possess the locus of enterocyte effacement (LEE) pathogenicity island; however, they do not contain the EAF plasmid or the stx-carrying phage.