Emerging Infectious Disease ISSN: 1080-6059

Shiga Toxin–producing Escherichia coli Strains Negative for Locus of Enterocyte Effacement

Hayley J. Newton¹, Joan Sloan¹, Dieter M. Bulach, Torsten Seemann, Cody C. Allison, Marija Tauschek, Roy M. Robins-Browne, James C. Paton, Thomas S. Whittam, Adrienne W. Paton, and Elizabeth L. Hartland

Author affiliations: Monash University, Melbourne, Victoria, Australia (H.J. Newton, J. Sloan, D.M. Bulach, T. Seemann, C.C. Allison, E.L. Hartland); University of Melbourne, Melbourne (H.J. Newton, J. Sloan, M. Tauschek, R.M. Robins-Browne, E.L. Hartland); University of Adelaide, Adelaide, South Australia, Australia (J.C. Paton, A.W. Paton); Michigan State University, East Lansing, Michigan, USA (T.S. Whittam)

Main Article

Figure 3

Neighbor-joining tree of ehxA (A) and repA (B) as implemented in ClustalW (www.ebi.ac.uk/Tools/clustalw2). This rectangular cladogram demonstrates the distinct clades (shown by boxes) for ehxA that delineate locus of enterocyte effacement (LEE)–negative and LEE-positive Shiga toxin–producing Escherichia coli strains. Exceptions to this pattern are shown in boldface, strain names are shown in parentheses, and + or – indicates the presence or absence of LEE. Significant nodes were identified by bo

Figure 3. Neighbor-joining tree of ehxA (A) and repA (B) as implemented in ClustalW (www.ebi.ac.uk/Tools/clustalw2). This rectangular cladogram demonstrates the distinct clades (shown by boxes) for ehxA that delineate locus of enterocyte effacement (LEE)–negative and LEE-positive Shiga toxin–producing Escherichia coli strains. Exceptions to this pattern are shown in boldface, strain names are shown in parentheses, and + or – indicates the presence or absence of LEE. Significant nodes were identified by bootstrapping (Monte Carlo randomization); nodes were present in >70% of the 1,000 bootstrap trees highlighted and identified as significant.

Main Article

¹These authors contributed equally to this article.

Top of Page

The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.