┌─ Escherichia coli (9-273/302) B7A (9)  
                                                                      ┌┴─ Escherichia coli (9-273/302) K12 (12)  
                                                                     ┌┴─ Escherichia coli (7-271/300) ATCC 8739 (8) [2] 
                                                                    ┌┴─ Escherichia coli (7-271/300) 83972 (1)  
                                                                   ┌┴─ Escherichia coli (9-273/302) 042 (11)  
┌──────────────────────────────────────────────────────────────────┴─ Escherichia coli (9-273/302) E24377A (10)  
┤                                                                 ┌─ Escherichia coli MS 69-1   
└─────────────────────────────────────────────────────────────────┤┌─ Escherichia coli TA280   
                                                                  └┤┌─ Escherichia coli B354   
                                                                   ││  ┌─ Escherichia coli SMS-3-5   
                                                                   └┤ ┌┴─ Escherichia coli TA143   
                                                                    │┌┴─ Escherichia coli IAI39 (1)  
                                                                    └┤┌─ Escherichia coli FVEC1302 (3)  
                                                                     └┤┌─ Escherichia coli MS 21-1   
                                                                      ││┌─ Escherichia coli B185   
                                                                      └┤│ ┌─ fig|1040638.4.peg.5283 O104:H4 str. LB226692 (23)  
                                                                       ││┌┴─ Escherichia coli O111:H- str. 11128 (1)  
                                                                       └┤│      ┌─ Escherichia coli 1044A (21)  
                                                                        ││     ┌┴─ Escherichia coli O157:H7 EDL933 (1)  
                                                                        ││    ┌┴─ Escherichia coli O157:H7 str. EC4486   
                                                                        └┤   ┌┴─ Escherichia coli O55:H7 str. CB9615   
                                                                         │  ┌┴─ Escherichia coli H299   
                                                                         │ ┌┴─ Escherichia coli 53638 (1)  
                                                                         │┌┴─ Escherichia coli B088 (15)  
                                                                         └┤ ┌─ Escherichia coli 042 (1)  
                                                                          │┌┴─ Escherichia coli EC4100B   
                                                                          └┤  ┌─ Escherichia coli E2348/69   
                                                                           │ ┌┴─ Escherichia coli O83:H1 str. NRG 857C   
                                                                           └┬┴─ Escherichia coli M605   
                                                                            └┬─ Escherichia coli 1827-70 (5)  
                                                                             └┬─ Escherichia coli 536 (4)  
                                                                              └─ Escherichia coli K12 (30)  
  
Ferric enterobactin-binding periplasmic protein FepB (TC 3.A.1.14.2) (25)
Iron(III) dicitrate transport system, periplasmic iron-binding protein FecB (TC 3.A.1.14.1) (6)
Others (1)