┌─ Escherichia coli (7-269/271) E2348/69 (2)  
                                                                   ┌┴─ Escherichia coli (7-269/271) MS 175-1   
┌──────────────────────────────────────────────────────────────────┴─ fig|6666666.5357.peg.1540 TY-2482 (7-269/271) strain (4)  
┤                                                                  ┌─ Escherichia coli TA280   
└──────────────────────────────────────────────────────────────────┤┌─ Escherichia coli K12 (108)  
                                                                   └┤ ┌─ Escherichia coli APEC O1 (9)  
                                                                    │┌┴─ Escherichia coli M605 (1)  
                                                                    └┤ ┌─ Escherichia coli B171 (4)  
                                                                     └┬┴─ Escherichia coli ETEC H10407   
                                                                      └┬─ Escherichia coli O127:H6 str. E2348/69   
                                                                       └─ Escherichia coli O157:H7 EDL933   
  

  
Dihydropteroate synthase (EC 2.5.1.15)
 (10)
  
 Others 
(1)