┌─ Escherichia coli ED1a (1)  
                                                              ┌┴─ Escherichia coli (14-287/287) APEC O1 (6)  
                                                             ┌┴─ Escherichia coli (21-294/294) CFT073 (15)  
                                                            ┌┴─ Escherichia coli (14-287/287) F11 (4)  
                                                           ┌┤ ┌─ Escherichia coli IAI39 (1)  
                                                           │└┬┴─ Escherichia coli H736   
                                                        ┌──┤ └┬─ Escherichia coli B171 (4)  
                                                        │  │  └─ Escherichia coli (14-287/287) K12 (93)  
                                ┌───────────────────────┤  └─ Escherichia coli 1827-70   
                                │                       └── Escherichia coli O157:H7 str. EC4024   
┌───────────────────────────────┤                                  ┌─ Escherichia coli (6-266/271) M605   
│                               └──────────────────────────────────┤ ┌─ Escherichia coli (6-266/271) 53638   
│                                                                  └┬┴─ Escherichia coli (6-266/271) 042   
│                                                                   └┬─ Escherichia coli (6-266/271) K12 (15)  
│                                                                    └┬─ Escherichia coli (6-266/271) SE15   
│                                                                     └─ Escherichia coli (6-266/271) B171   
┤                                                           ┌─ Escherichia coli (28-275/284) CFT073   
│                                                          ┌┴─ Escherichia coli (4-246/255) 83972 (4)  
│                                                         ┌┴─ Escherichia coli (28-275/284) APEC O1 (1)  
│                                                        ┌┴─ Escherichia coli (4-246/255) 101-1 (23)  
│     ┌──────────────────────────────────────────────────┴┬─ Escherichia coli (4-246/255) M605   
│     │                                                   └─ Escherichia coli (4-246/255) MS 21-1   
└─────┤                                                       ┌─ Escherichia coli (4-250/260) 536 (11)  
      │                                                      ┌┴─ Escherichia coli (4-250/260) APEC O1 (7)  
      └──────────────────────────────────────────────────────┤┌─ Escherichia coli (4-250/260) TA206   
                                                             ││  ┌─ Escherichia coli (4-250/260) 2362-75 (3)  
                                                             └┤ ┌┴─ Escherichia coli (4-250/260) M605 (1)  
                                                              │┌┴─ Escherichia coli (4-250/260) ED1a (1)  
                                                              └┤┌─ Escherichia coli (4-250/260) MS 115-1   
                                                               └┤┌─ Escherichia coli (4-250/260) ETEC H10407   
                                                                └┤ ┌─ Escherichia coli (4-250/260) 1827-70   
                                                                 └┬┴─ Escherichia coli (4-250/260) K12 (22)  
                                                                  └┬─ Escherichia coli (4-250/260) IAI39 (2)  
                                                                   └┬─ Escherichia coli (4-250/260) B354 (2)  
                                                                    └┬─ Escherichia coli (4-250/260) M718   
                                                                     └┬─ Escherichia coli (4-250/260) B185   
                                                                      └─ Escherichia coli (4-250/260) 1044A (25)  
  
Uncharacterized transcriptional regulator YfaX, HTH-type (15)
Acetate operon repressor (10)
Negative regulator of allantoin and glyoxylate utilization operons (6)
D-galactonate regulator, IclR family (6)