TABLE 2.

Identification of conserved, unique, and group-specific genes in E. coli

E. coli strainPathovaraNo. of genesNo. of conserved genesbNo. of unique genescNo. of group-specific genesd
K-12Commensal4,2382,3122111
W3110Commensal4,3842,3243111
HSCommensal4,4332,3219411
E24377AETEC5,1112,3182465
B7AETEC5,3572,4462564
EDL933EHEC4,8632,32727122
SakaiEHEC5,4972,337208126
CFT073ExPEC/UPEC5,5892,34130856
F11ExPEC/UPEC5,1982,41220346
UTI89ExPEC/UPEC5,1762,28810945
536ExPEC/UPEC4,7342,34713446
APEC01ExPEC/Avian4,5612,2951583d
E22EPEC5,5752,3432745
E110019EPEC5,5862,3972194
B171EPEC5,3302,3822346
Ec042EAEC4,8992,3053083
101-1EAEC4,8122,3561554
  • a Pathovar assignment is based on previous identification of the strain (see references).

  • b Conserved genes are genes whose BSR is ≥0.8 in all isolates.

  • c Unique genes are genes whose BSR is <0.4 in all other isolates tested.

  • d Group-specific genes are genes whose BSR is >0.8 in the members of the group but <0.4 in all other isolates.