┌───────── Escherichia coli APEC O1 (6)  
                                            ┌┴─ Escherichia coli 536 (4)  
                                   ┌────────┴───────── Escherichia coli ED1a (1)  
                         ┌─────────┴─ Escherichia coli M605 (1)  
                ┌────────┴───────┬─ Escherichia coli WV_060327   
                │                └────────┬───────── Escherichia coli O83:H1 str. NRG 857C   
┌───────────────┤                         └─ Escherichia coli 83972 (5)  
│               └┬─ Escherichia coli 2362-75 (2)  
│                └───────────────────────────────────── Escherichia coli TA206   
│                                                ┌─ Escherichia coli 042 (1)  
│                                       ┌────────┴────────────────── Escherichia coli NC101   
│                              ┌────────┴───────── Escherichia coli (1-630/631) MS 69-1   
┤                     ┌────────┴────────┬──────────────────────────── Escherichia coli IAI39 (1)  
│                    ┌┤                 └───────── Escherichia coli MS 21-1   
│                    │└────────┬───────── Escherichia coli (1-630/631) B354   
│                   ┌┤         └─ Escherichia coli (1-630/631) FVEC1302 (4)  
│ ┌─────────────────┤└─ Escherichia coli TA143   
│ │                 └────────┬──────────────────────────── Escherichia coli SMS-3-5   
└─┤                          └─ Escherichia coli H299   
  │        ┌─ Escherichia coli B185   
  └────────┤        ┌──────────────────────────── Escherichia coli 101-1 (8)  
           └────────┤          ┌─ Escherichia coli 1044A (22)  
                    │         ┌┴───────── Escherichia coli O55:H7 str. CB9615   
                    └┬────────┴─ Escherichia coli O157:H7 EDL933  [2] 
                     └────────┬─ Escherichia coli M718   
                              └────────┬───────── Escherichia coli B7A (6)  
                                       └┬─ fig|1040638.4.peg.1023 O104:H4 str. LB226692 (7)  
                                        └────────┬───────── Escherichia coli E24377A (1)  
                                                 └┬───────── Escherichia coli MS 182-1 (1)  
                                                  └─ Escherichia coli K12 (30)  
  
Thiamin biosynthesis protein ThiC (29)
Others (1)