┌─ Escherichia coli (13-716/732) SMS-3-5   
                                                            ┌┴─ Escherichia coli (1-692/714) S88   
                                                           ┌┴─ Escherichia coli (13-710/732) APEC O1 (2)  
                                                          ┌┴┬─ Escherichia coli (13-710/732) MS 124-1   
                                                          │ └┬─ Escherichia coli (1-692/714) MS 84-1   
                                                         ┌┤  └─ Escherichia coli (16-710/732) O83:H1 str. NRG 857C   
                                                         │└┬─ Escherichia coli (13-710/732) MS 119-7   
                                                        ┌┤ └┬─ Escherichia coli (13-710/732) MS 45-1   
                                                        ││  └─ Escherichia coli (1-692/714) 83972 (1)  
┌───────────────────────────────────────────────────────┤└─ Escherichia coli (1-692/714) IAI39 (2)  
│                                                       └─ Escherichia coli (1-692/714) H299   
│                                                                      ┌─ Escherichia coli (50-749/760) WV_060327   
│                                                                     ┌┴─ Escherichia coli (50-749/760) ED1a (2)  
│                                                                    ┌┴─ Escherichia coli (50-749/760) O83:H1 str. NRG 857C   
│                                                                   ┌┴─ Escherichia coli (50-749/760) CFT073 (1)  
│                                                                  ┌┴─ Escherichia coli (50-749/760) 83972 (3)  
│                                                                 ┌┴┬─ Escherichia coli (50-749/760) IHE3034 (3)  
│                                                                ┌┤ └─ Escherichia coli (50-749/760) S88   
│                                                                │└┬─ Escherichia coli (50-749/760) F11 (2)  
│                                                               ┌┤ └─ Escherichia coli (50-749/760) 536 (1)  
│                                                               │└┬─ Escherichia coli (25-749/760) M605   
│                                                              ┌┤ └┬─ Escherichia coli (25-749/760) SE15   
│                                                              ││  └─ Escherichia coli (25-749/760) E2348/69   
│                                                             ┌┤└─ Escherichia coli (50-749/760) SMS-3-5   
│                                                             │└┬─ Escherichia coli (24-749/760) 042   
│                                                             │ └┬─ Escherichia coli (23-722/733) 042   
│                                                             │  └─ Escherichia coli (50-749/760) FVEC1302 (4)  
┤                                                            ┌┤   ┌─ Escherichia coli (50-749/760) 1212A (1)  
│                                                            ││  ┌┴─ Escherichia coli (50-749/760) 1044A (21)  
│                                                            ││ ┌┴─ Escherichia coli (50-749/760) M718   
│                                                            ││┌┴─ Escherichia coli (50-749/760) IAI39 (1)  
│                                                            │└┤┌─ Escherichia coli (50-749/760) 101-1 (5)  
│                                                            │ ││   ┌─ Escherichia coli (50-749/760) MS 119-7 (1)  
│                                                            │ └┤  ┌┴─ Escherichia coli (23-722/733) O111:H- str. 11128   
│                                                           ┌┤  │ ┌┴─ fig|1040638.4.peg.4914 O104:H4 (50-749/760) str. LB226692 (6)  
│                                                           ││  └┬┴─ Escherichia coli (50-749/760) K12 (21)  
│                                                           ││   └┬─ Escherichia coli (50-749/760) E22 (1)  
│                                                           ││    └┬─ Escherichia coli (50-749/760) B171 (11)  
│                                                           ││     └┬─ Escherichia coli (50-749/760) MS 145-7   
│                        ┌──────────────────────────────────┤│      └┬─ Escherichia coli (50-749/760) B7A (1)  
│                        │                                  ││       └─ Escherichia coli (50-749/760) IAI1 (1)  
│                        │                                  │└┬─ Escherichia coli (50-749/760) MS 69-1   
│        ┌───────────────┤                                  │ └─ Escherichia coli (50-749/760) B354   
│        │               │                                  └─ Escherichia coli (50-749/760) TA280   
│        │               └─────────────────────────────────────────── Escherichia coli (14-725/746) 83972 (1)  
└────────┤                                          ┌─ Escherichia coli FVEC1302 (2)  
         │                                         ┌┴─ Escherichia coli MS 198-1   
         │                                        ┌┴─ Escherichia coli (54-753/753) 042 (2)  
         │                                        │┌─ Escherichia coli TA280   
         └────────────────────────────────────────┤│      ┌─ Escherichia coli 536 (4)  
                                                  ││     ┌┴─ Escherichia coli S88   
                                                  ││    ┌┴─ Escherichia coli APEC O1 (5)  
                                                  └┤   ┌┴─ Escherichia coli 2362-75 (2)  
                                                   │  ┌┴┬─ Escherichia coli SE15   
                                                   │ ┌┤ └─ Escherichia coli M605   
                                                   │┌┤└─ Escherichia coli WV_060327   
                                                   ││└─ Escherichia coli H299   
                                                   └┤┌─ Escherichia coli (45-744/744) MS 21-1   
                                                    ││  ┌─ Escherichia coli ED1a (3)  
                                                    └┤ ┌┴─ Escherichia coli 83972 (1)  
                                                     │┌┴─ Escherichia coli NC101 (1)  
                                                     └┤┌─ fig|1040638.4.peg.4195 O104:H4 str. LB226692 (3)  
                                                      ││┌─ Escherichia coli MS 78-1   
                                                      └┤│    ┌─ Escherichia coli B7A (1)  
                                                       ││   ┌┴─ Escherichia coli SE11   
                                                       └┤  ┌┴─ Escherichia coli O111:H- str. 11128   
                                                        │ ┌┴┬─ Escherichia coli MS 107-1   
                                                        │┌┤ └─ Escherichia coli B171 (4)  
                                                        ││└┬─ Escherichia coli O26:H11 str. 11368   
                                                        └┤ └─ Escherichia coli B088 (8)  
                                                         │┌─ Escherichia coli E110019 (1)  
                                                         └┤ ┌─ Escherichia coli MS 124-1 (1)  
                                                          │┌┴─ Escherichia coli KO11 (2)  
                                                          └┤┌─ Escherichia coli K12 (10)  
                                                           └┤ ┌─ Escherichia coli 1044A (23)  
                                                            └┬┴─ Escherichia coli O157:H7 EDL933 (1)  
                                                             └┬─ Escherichia coli 1827-70   
                                                              └┬─ Escherichia coli ATCC 8739 (3)  
                                                               └┬─ Escherichia coli MS 115-1   
                                                                └─ Escherichia coli 53638   
  
Probable tonB-dependent receptor yncD precursor (34)
Ferrichrome-iron receptor (32)
Aerobactin siderophore receptor IutA @ TonB-dependent siderophore receptor (11)
TonB-dependent receptor; Outer membrane receptor for ferrienterochelin and colicins (1)
Others (2)