┌─ Escherichia coli (1-248/249) APEC O1 (7)  
                                                                ┌┴─ Escherichia coli (1-248/249) 536 (1)  
                                                               ┌┴─ Escherichia coli (1-248/249) M605 (3)  
┌──────────────────────────────────────────────────────────────┴─ Escherichia coli (1-248/249) 2362-75 (16)  
│                                                                       ┌─ Escherichia coli (6-263/263) E2348/69 (2)  
│                                                                      ┌┴─ Escherichia coli H299   
│                                                                     ┌┴─ Escherichia coli (6-263/263) 042 (33)  
┤                                                                    ┌┴─ Escherichia coli 536 (3)  
│                                                                   ┌┴─ Escherichia coli B185 (1)  
│                                                                  ┌┴┬─ Escherichia coli 101-1 (6)  
│               ┌──────────────────────────────────────────────────┤ └─ Escherichia coli (6-263/263) K12 (79)  
└───────────────┤                                                  └─ Escherichia coli MS 116-1   
                │                                         ┌─ Escherichia coli (2-240/241) O127:H6 str. E2348/69   
                └─────────────────────────────────────────┤┌─ Escherichia coli (5-256/257) 536 (16)  
                                                          └┤┌─ Escherichia coli (5-256/257) APEC O1 (5)  
                                                           └┤ ┌─ Escherichia coli (5-256/257) 101-1 (8)  
                                                            │┌┴─ Escherichia coli (5-256/257) B171 (1)  
                                                            └┤┌─ Escherichia coli (5-256/257) H299   
                                                             ││    ┌─ Escherichia coli (4-256/257) SMS-3-5   
                                                             └┤   ┌┴─ Escherichia coli (5-256/257) TA143   
                                                              │  ┌┴─ Escherichia coli (5-256/257) ETEC H10407 (2)  
                                                              │ ┌┴─ Escherichia coli (5-256/257) K12 (30)  
                                                              └┬┴─ Escherichia coli (4-256/257) MS 69-1   
                                                               └┬─ fig|6666666.5357.peg.46 TY-2482 (5-256/257) strain   
                                                                └┬─ fig|1040638.4.peg.734 O104:H4 (5-256/257) str. LB226692 (49)  
                                                                 └┬─ Escherichia coli (5-252/257) E24377A (1)  
                                                                  └┬─ Escherichia coli (2-240/241) B088 (2)  
                                                                   └─ Escherichia coli (5-256/257) O157:H7 EDL933 (1)  
  
Uxu operon transcriptional regulator (14)
Hexuronate utilization operon transcriptional repressor ExuR (11)
putative regulator (1)
Others (2)