┌─ Escherichia coli (12-76/89) B171 (1)  
┬─────────────────────────────────────────────────────────────┴─── Escherichia coli (12-76/89) 1044A (10)  
└────────────────────────────────────────────┬─────────────────────── Escherichia coli B185   
                                             └─────────────────┬─ fig|1040638.4.peg.2524 O104:H4 str. LB226692 (4)  
                                                               └┬─ Escherichia coli B171 (2)  
                                                                └─ Escherichia coli 042 (56)  
  

  
Surface presentation of antigens protein SpaQ
 (3)
  
Type III secretion inner membrane protein (YscS,homologous to flagellar export components)
 (2)
  
 Others 
(1)