┌─ fig|1040638.4.peg.4003 O104:H4 str. LB226692 (20)  
                                                                      ┌┴─ Escherichia coli MS 187-1   
                                                                     ┌┴┬─ Escherichia coli (21-403/403) 53638  [2] 
                                                                    ┌┤ └─ fig|6666666.5357.peg.714 TY-2482 strain (16)  
                                                                   ┌┤└─ Escherichia coli (21-403/403) O111:H- str. 11128   
                                                                  ┌┤└─ Escherichia coli 1044A (12)  
                                                                  │└─ Escherichia coli 1212A (14)  
                                                                 ┌┤ ┌─ Escherichia coli (21-403/403) K12 (12)  
                                                                 │└┬┴─ Escherichia coli (DE3) BL21(DE3) (7)  
                                                                 │ └┬─ Escherichia coli (21-403/403) MS 69-1   
                                                                ┌┤  └┬─ Escherichia coli (21-403/403) TA280   
                                                                ││   └┬─ Escherichia coli B354 (1)  
                                                                ││    └─ Escherichia coli FVEC1302 (2)  
                                                               ┌┤└┬─ Escherichia coli (21-403/403) 536 (25)  
                                                               ││ └─ Escherichia coli ABU 83972 (1)  
┌──────────────────────────────────────────────────────────────┤└─ Escherichia coli TA143   
│                                                              └─ Escherichia coli (21-403/403) 042 (1)  
│                                                                    ┌─ Escherichia coli (29-413/414) E110019 (2)  
│                                                                   ┌┴─ Escherichia coli (29-413/414) B354   
│                                                                  ┌┴─ Escherichia coli (29-413/414) ED1a (3)  
│                                                                 ┌┴─ Escherichia coli (29-413/414) 536 (4)  
│                                                                ┌┴─ Escherichia coli (29-413/414) 2362-75 (12)  
│                                                               ┌┴─ Escherichia coli (29-413/414) SE15   
│                                                              ┌┤┌─ Escherichia coli (29-413/414) 53638 (5)  
┤                                                              │└┤ ┌─ Escherichia coli (29-413/414) 1044A (24)  
│                                                              │ └┬┴─ Escherichia coli (29-413/414) 1212A (1)  
│                                                             ┌┤  └┬─ Escherichia coli (29-413/414) B7A (7)  
│                                                             ││   └─ fig|1040638.4.peg.1746 O104:H4 (29-413/414) str. LB226692 (23)  
│                                                            ┌┤└─ Escherichia coli (29-413/414) DH1   
│                                                           ┌┤└─ Escherichia coli (29-413/414) K12 (18)  
│                               ┌───────────────────────────┤└─ Escherichia coli (4-369/370) str. K-12 substr. DH10B   
│                               │                           └┬─ Escherichia coli (29-413/414) 83972 (11)  
│                               │                            └┬─ Escherichia coli (29-413/414) MS 69-1   
└───────────────────────────────┤                             └─ Escherichia coli (29-413/414) 042 (5)  
                                │                                  ┌─ Escherichia coli (27-415/415) O26:H11 str. 11368   
                                │                                  │   ┌─ Escherichia coli (27-415/415) 536 (15)  
                                │                                  │  ┌┴─ Escherichia coli (27-415/415) O83:H1 str. NRG 857C   
                                └──────────────────────────────────┤ ┌┴─ Escherichia coli (27-415/415) 042 (6)  
                                                                   │┌┴┬─ Escherichia coli (27-415/415) 83972 (5)  
                                                                   ││ └─ Escherichia coli (27-415/415) ED1a (1)  
                                                                   └┤   ┌─ Escherichia coli (27-415/415) MS 124-1 (1)  
                                                                    │  ┌┴─ Escherichia coli H591 (1)  
                                                                    │ ┌┴─ Escherichia coli (27-415/415) B171 (38)  
                                                                    └┬┴─ Escherichia coli (27-415/415) EC4100B   
                                                                     └┬─ Escherichia coli (12-400/400) 2362-75 (2)  
                                                                      └┬─ Escherichia coli (27-415/415) UMN026 (3)  
                                                                       └┬─ Escherichia coli (27-415/415) B088   
                                                                        └┬─ Escherichia coli (27-415/415) B185 (1)  
                                                                         └┬─ Escherichia coli (27-415/415) 1125A (24)  
                                                                          └┬─ Escherichia coli (27-415/415) K12 (10)  
                                                                           └┬─ Escherichia coli (27-415/415) ATCC 8739 (1)  
                                                                            └┬─ Escherichia coli (27-415/415) MS 116-1 (1)  
                                                                             └─ Escherichia coli (27-415/415) 53638 (1)  
  
Low affinity tryptophan permease (19)
Tryptophan-specific transport protein (16)
Tyrosine-specific transport protein (15)
Others (3)