┌─── Escherichia coli (1-316/319) TA206   
┬────────────────────────────────────────────────────────────┴─────── Escherichia coli (1-316/319) O157:H7 str. EC4024   
└─────────────────────────────────────────────────────────────────┬─ Escherichia coli 101-1 (6)  
                                                                  └┬─ Escherichia coli TA271   
                                                                   └┬─ Escherichia coli O157:H7 EDL933 (1)  
                                                                    └─ Escherichia coli K12 (118)  
  
putative receptor protein (4)
hypothetical protein (2)