┌─ Escherichia coli (5-403/409) MS 21-1 (1)  
                                                                       ┌┴─ Escherichia coli (5-403/409) O111:H- str. 11128   
                                                                      ┌┴─ Escherichia coli (5-403/409) K12 (109)  
                                                                     ┌┴┬─ Escherichia coli (5-403/409) B185 (1)  
                                                                    ┌┤ └─ Escherichia coli (5-403/409) B7A (1)  
                           ┌────────────────────────────────────────┤└─ Escherichia coli (5-403/409) 101-1   
                      ┌────┤                                        └─ Escherichia coli (5-403/409) 042 (6)  
                      │    └──────┬─ Escherichia coli (3-428/429) E24377A   
                      │           └┬─ Escherichia coli (3-428/429) MS 124-1 (1)  
                      │            └┬─ Escherichia coli (3-428/429) K12 (86)  
┌─────────────────────┤             └┬─ Escherichia coli (3-428/429) ATCC 8739 (1)  
│                     │              └─ Escherichia coli (3-428/429) 2362-75 (30)  
│                     │                   ┌─ Escherichia coli K12 (53)  
│                     └──────────────────┬┴─ Escherichia coli OP50   
│                                        └┬─ Escherichia coli O111:H- str. 11128   
┤                                         └┬─ Escherichia coli S88   
│                                          └┬─ Escherichia coli 042 (18)  
│                                           └─ fig|1040638.4.peg.1693 O104:H4 str. LB226692 (52)  
│                                                     ┌─ Escherichia coli (17-421/423) SE15   
│                                                    ┌┴─ Escherichia coli (17-421/423) M605 (1)  
│                              ┌─────────────────────┴─ Escherichia coli (38-442/444) E2348/69 (2)  
└──────────────────────────────┤               ┌─ Escherichia coli (24-433/443) TA143   
                               └───────────────┤┌─ Escherichia coli (24-433/443) 042 (24)  
                                               └┤ ┌─ Escherichia coli (24-433/443) MS 21-1   
                                                └┬┴─ Escherichia coli (24-433/443) 2362-75 (6)  
                                                 └┬─ Escherichia coli (24-433/443) TA280   
                                                  └┬─ Escherichia coli (24-433/443) E24377A (1)  
                                                   └┬─ Escherichia coli (24-433/443) HS (1)  
                                                    └┬─ Escherichia coli (6-415/425) K12 (57)  
                                                     └┬─ Escherichia coli (24-433/443) ATCC 8739 (1)  
                                                      └┬─ Escherichia coli (24-433/443) H299   
                                                       └┬─ Escherichia coli (24-433/443) O55:H7 str. CB9615   
                                                        └─ Escherichia coli (24-433/443) 1044A (24)  
  
Serine transporter (27)
L-threonine transporter, anaerobically inducible (5)
Others (1)