┌─ Escherichia coli (5-516/516) MS 198-1   
                                                                        ┌┴─ Escherichia coli (5-516/516) B354 (9)  
                                                                       ┌┴─ Escherichia coli (24-535/535) 042 (2)  
                                                                      ┌┴─ Escherichia coli (5-516/516) O111:H- str. 11128   
                                                                     ┌┴─ Escherichia coli (24-535/535) K12 (55)  
                                                                    ┌┴┬─ Escherichia coli (5-516/516) MS 115-1   
                                                                    │ └┬─ Escherichia coli (5-516/516) 2362-75 (2)  
                                                                   ┌┤  └─ Escherichia coli (5-516/516) 536 (29)  
                                                                   │└┬─ Escherichia coli (24-535/535) O157:H7 EDL933 (1)  
┌──────────────────────────────────────────────────────────────────┤ └─ Escherichia coli (5-516/516) 1044A (23)  
│                                                                  └─ Escherichia coli (5-516/516) MS 78-1   
│                                                                 ┌─ Escherichia coli IAI39   
┤                                                                 │       ┌─ Escherichia coli S88   
│                                                                 │      ┌┴─ Escherichia coli APEC O1  [2] 
│                                                                 │     ┌┴─ Escherichia coli UM146 (1)  
│                                                                 │    ┌┴─ Escherichia coli IHE3034 (1)  
└─────────────────────────────────────────────────────────────────┤   ┌┴┬─ Escherichia coli MS 21-1   
                                                                  │  ┌┤ └─ Escherichia coli 2362-75 (6)  
                                                                  │ ┌┤└─ Escherichia coli MS 200-1   
                                                                  │ │└┬─ Escherichia coli TA206   
                                                                  │┌┤ └─ Escherichia coli (9-547/547) ABU 83972 (4)  
                                                                  ││└─ Escherichia coli 536 (8)  
                                                                  └┤┌─ Escherichia coli H299 (1)  
                                                                   ││  ┌─ Escherichia coli B7A (9)  
                                                                   └┤ ┌┴─ Escherichia coli (9-547/547) 042 (8)  
                                                                    │┌┴─ Escherichia coli MS 69-1   
                                                                    └┤┌─ Escherichia coli O111:H- str. 11128   
                                                                     ││  ┌─ Escherichia coli (9-547/547) K12 (6)  
                                                                     └┤ ┌┴─ Escherichia coli MS 124-1 (1)  
                                                                      │┌┴─ fig|1040638.4.peg.4056 O104:H4 str. LB226692 (11)  
                                                                      └┤ ┌─ Escherichia coli ATCC 8739 (11)  
                                                                       └┬┴─ Escherichia coli B354   
                                                                        └┬─ Escherichia coli 101-1 (14)  
                                                                         └┬─ Escherichia coli O55:H7 str. CB9615   
                                                                          └┬─ Escherichia coli O157:H7 EDL933 (15)  
                                                                           └┬─ Escherichia coli 1044A (5)  
                                                                            └─ Escherichia coli (9-547/547) O157:H7 (2)  
  
Peptide transport periplasmic protein sapA (TC 3.A.1.5.5) (25)
Dipeptide-binding ABC transporter, periplasmic substrate-binding component (TC 3.A.1.5.2) (11)
Others (1)