┌─ Escherichia coli (5-255/271) MS 175-1   
                                                           ┌┴─ Escherichia coli (5-255/271) E2348/69 (2)  
                                ┌──────────────────────────┴─ fig|6666666.5357.peg.1540 TY-2482 (5-255/271) strain (4)  
┌───────────────────────────────┴───────────────────────────────────┬─ Escherichia coli (30-286/308) 042 (16)  
┤                                                                   └─ fig|1040638.4.peg.132 O104:H4 str. LB226692   
│                                                                ┌─ Escherichia coli (17-257/282) TA280   
└────────────────────────────────────────────────────────────────┤┌─ Escherichia coli (17-257/282) ETEC H10407   
                                                                 └┤  ┌─ Escherichia coli (17-257/282) K12 (108)  
                                                                  │ ┌┴─ Escherichia coli (2-240/265) O127:H6 str. E2348/69   
                                                                  └┬┴─ Escherichia coli (17-257/282) O157:H7 EDL933   
                                                                   └┬─ Escherichia coli (17-257/282) B171 (4)  
                                                                    └┬─ Escherichia coli (17-257/282) M605 (1)  
                                                                     └─ Escherichia coli (17-257/282) APEC O1 (9)  
  
Dihydropteroate synthase (EC 2.5.1.15) (11)
Others (2)