┌─ Escherichia coli 1044A (9)  
               ┌┴─ Escherichia coli 1125A (12)  
┌──────────────┴─── Escherichia coli O157:H7 str. EC869 (2)  
│         ┌─ Escherichia coli 55989 (7)  
│        ┌┴─── Escherichia coli O26:H11 str. 11368   
│       ┌┴┬───── Escherichia coli OP50   
│      ┌┤ └─── fig|6666666.5357.peg.1991 TY-2482 strain   
│    ┌─┤└─ fig|1040638.4.peg.4019 O104:H4 str. LB226692 (5)  
┤    │ └───────┬─ Escherichia coli 1827-70 (6)  
│   ┌┤         └──┬─ Escherichia coli BW2952 (9)  
│   ││            └─ Escherichia coli K12 (2)  
│   │└──┬─── Escherichia coli TA271   
│┌──┤   └─┬─── Escherichia coli MS 119-7   
││  │     └─ Escherichia coli H591   
││  └─ Escherichia coli KO11 (2)  
└┤  ┌─ Escherichia coli B088 (10)  
 │ ┌┴─── Escherichia coli MS 145-7   
 │┌┴─ Escherichia coli B171 (4)  
 └┤┌─── Escherichia coli E110019 (1)  
  └┤  ┌──────── Escherichia coli H299   
   │  │          ┌───── Escherichia coli M718   
   └──┤     ┌────┴───── Escherichia coli 042 (2) [2] 
      │┌────┴──┬─── Escherichia coli B354   
      ││       └─ Escherichia coli TA280   
      └┤                 ┌─────────────────────────────────────────────── Escherichia coli B185   
       │       ┌─────────┴────────────── Escherichia coli MS 69-1   
       │       │                 ┌─── Escherichia coli IAI39 (1)  
       └───────┤             ┌───┴─── Escherichia coli MS 21-1 (1)  
               │   ┌─────────┴────────────── Escherichia coli APEC O1 (6)  
               │   │        ┌─ Escherichia coli 536 (4)  
               └───┤┌───────┴─ Escherichia coli ED1a (1)  
                   ││     ┌───── Escherichia coli WV_060327   
                   └┤    ┌┴─── Escherichia coli 2362-75 (2)  
                    │   ┌┴─── Escherichia coli M605   
                    └──┬┴─ Escherichia coli SE15   
                       └──┬─── Escherichia coli NC101 (1)  
                          └──┬─ Escherichia coli TA206   
                             └───────┬─ Escherichia coli CFT073   
                                     └┬─ Escherichia coli 83972 (2)  
                                      └─ Escherichia coli MS 45-1   
  
Indole-3-glycerol phosphate synthase (EC 4.1.1.48) / Phosphoribosylanthranilate isomerase (EC 5.3.1.24) (38)
Others (2)