┌─ Escherichia coli (2-443/443) 042 (18)  
                                                                      ┌┴─ Escherichia coli (2-443/443) O111:H- str. 11128   
                                                                     ┌┴─ Escherichia coli (2-443/443) S88   
                                                                    ┌┴─ fig|1040638.4.peg.1693 O104:H4 (2-443/443) str. LB226692 (52)  
                                   ┌────────────────────────────────┴┬─ Escherichia coli (2-443/443) OP50   
                     ┌─────────────┤                                 └─ Escherichia coli (2-443/443) K12 (53)  
                     │             └───────┬─ Escherichia coli E24377A   
                     │                     └┬─ Escherichia coli MS 124-1 (1)  
                     │                      └┬─ Escherichia coli K12 (86)  
┌────────────────────┤                       └┬─ Escherichia coli ATCC 8739 (1)  
│                    │                        └─ Escherichia coli 2362-75 (30)  
│                    │                                        ┌─ Escherichia coli (5-409/409) B185 (1)  
│                    └────────────────────────────────────────┤┌─ Escherichia coli (5-409/409) MS 21-1 (1)  
│                                                             └┤ ┌─ Escherichia coli (5-409/409) K12 (109)  
┤                                                              └┬┴─ Escherichia coli (5-409/409) O111:H- str. 11128   
│                                                               └┬─ Escherichia coli (5-409/409) 101-1   
│                                                                └┬─ Escherichia coli (5-409/409) 042 (6)  
│                                                                 └─ Escherichia coli (5-409/409) B7A (1)  
│                                                         ┌─ Escherichia coli (23-442/443) H299   
└─────────────────────────────────────────────────────────┤ ┌─ Escherichia coli (23-442/443) O55:H7 str. CB9615   
                                                          │┌┴─ Escherichia coli (23-442/443) 1044A (24)  
                                                          └┤┌─ Escherichia coli (23-442/443) ATCC 8739 (1)  
                                                           └┤┌─ Escherichia coli (5-424/425) K12 (57)  
                                                            └┤┌─ Escherichia coli (23-442/443) E24377A (1)  
                                                             └┤┌─ Escherichia coli (23-442/443) HS (1)  
                                                              └┤┌─ Escherichia coli (23-442/443) TA280   
                                                               └┤ ┌─ Escherichia coli (23-442/443) 042 (24)  
                                                                └┬┴─ Escherichia coli (23-442/443) MS 21-1   
                                                                 └┬─ Escherichia coli (23-442/443) TA143   
                                                                  └─ Escherichia coli (23-442/443) 2362-75 (6)  
  
Serine transporter (24)
L-threonine transporter, anaerobically inducible (5)
Others (1)