┌─ Escherichia coli (8-299/309) ETEC H10407   
                                                                ┌┴─ Escherichia coli (8-299/309) 101-1   
                                                               ┌┴─ Escherichia coli (8-299/309) K12 (48)  
                                                              ┌┴┬─ Escherichia coli (8-299/309) S88   
                                                             ┌┤ └─ Escherichia coli (8-299/309) MS 124-1 (1)  
                                                            ┌┤└─ Escherichia coli (8-299/309) EC4100B   
                                                            │└┬─ Escherichia coli (8-299/309) O111:H- str. 11128   
                                                           ┌┤ └─ Escherichia coli (15-306/316) E110019 (2)  
                                                           │└┬─ fig|1040638.4.peg.3590 O104:H4 (8-299/309) str. LB226692 (31)  
                                                           │ └┬─ Escherichia coli (8-299/309) MS 200-1   
                                                          ┌┤  └┬─ Escherichia coli (15-306/316) E2348/69 (1)  
                                                          ││   └─ Escherichia coli (8-299/309) 2362-75   
                                                          │└┬─ Escherichia coli (8-299/309) B354   
                                                         ┌┤ └┬─ Escherichia coli (8-299/309) OP50   
                                                         ││  └─ Escherichia coli (8-299/309) APEC O1 (8)  
                        ┌────────────────────────────────┤└─ Escherichia coli (8-299/309) 1044A (25)  
                        │                                └─ Escherichia coli (8-299/309) TA280   
┌───────────────────────┤                                       ┌─ Escherichia coli (7-290/298) TA280   
│                       └───────────────────────────────────────┤ ┌─ Escherichia coli (7-290/298) IHE3034   
│                                                               └┬┴─ Escherichia coli (7-290/298) IAI39 (1)  
│                                                                └┬─ Escherichia coli (7-290/298) O157:H7 EDL933  [2] 
│                                                                 └┬─ Escherichia coli (7-290/298) K12 (119)  
│                                                                  └─ Escherichia coli (6-276/284) O127:H6 str. E2348/69   
│                                                                         ┌─ Escherichia coli (1-289/308) O83:H1 str. NRG 857C (1)  
│                                                                        ┌┴─ Escherichia coli (1-289/308) APEC O1 (7)  
│                                                                       ┌┴─ Escherichia coli (1-289/308) 2362-75 (16)  
│                                                                      ┌┴─ Escherichia coli (1-289/308) NC101 (1)  
┤                                                                     ┌┴─ Escherichia coli (1-289/308) H299   
│                                                                    ┌┴┬─ Escherichia coli (1-289/308) ATCC 8739 (1)  
│                                                                    │ └┬─ Escherichia coli (1-289/308) SMS-3-5   
│                                                                   ┌┤  └─ Escherichia coli (1-289/308) K12 (65)  
│                                                                   ││ ┌─ Escherichia coli (1-289/308) TA280   
│                                                                   │└┬┴─ Escherichia coli (1-289/308) MS 119-7   
│                                                                   │ └┬─ Escherichia coli (1-289/308) HS (1)  
│                                                                  ┌┤  └┬─ Escherichia coli (1-289/308) O103:H2 str. 12009   
│                                                                  ││   └┬─ Escherichia coli (1-289/308) E110019 (1)  
│                       ┌──────────────────────────────────────────┤│    └─ fig|6666666.5357.peg.4889 TY-2482 (1-289/308) strain (11)  
│                       │                                          │└─ Escherichia coli (1-289/308) FVEC1302 (3)  
└───────────────────────┤                                          └─ Escherichia coli (1-289/308) B185   
                        │                           ┌─ Escherichia coli FVEC1302 (4)  
                        └───────────────────────────┤┌─ Escherichia coli B354 (4)  
                                                    └┤┌─ Escherichia coli M605   
                                                     └┤ ┌─ Escherichia coli SE15   
                                                      │┌┴─ Escherichia coli WV_060327   
                                                      └┤┌─ Escherichia coli 536 (22)  
                                                       ││   ┌─ Escherichia coli (1-292/297) UM146   
                                                       └┤  ┌┴─ Escherichia coli (1-292/297) 1827-70   
                                                        │ ┌┴─ Escherichia coli TA271   
                                                        │┌┴─ fig|1040638.4.peg.5465 O104:H4 str. LB226692 (7)  
                                                        └┤  ┌─ Escherichia coli MS 145-7   
                                                         │ ┌┴─ Escherichia coli B7A (4)  
                                                         └┬┴─ Escherichia coli IAI1 (1)  
                                                          └┬─ Escherichia coli K12 (6)  
                                                           └┬─ Escherichia coli 101-1 (21)  
                                                            └┬─ Escherichia coli MS 182-1   
                                                             └┬─ Escherichia coli E110019 (1)  
                                                              └─ Escherichia coli B088 (9)  
  
Putative HTH-type transcriptional regulator yahB (17)
Hypothetical transcriptional regulator yeeY (16)
DNA-binding transcriptional activator of the allD operon (14)
LysR-family transcriptional regulator YhaJ (6)
Hypothetical lysR-family transcriptional regulator YbbS (1)
Others (3)