┌─ Escherichia coli 1044A (23)  
                                                                  ┌┴─ Escherichia coli O157:H7 str. EC4024 (1)  
                                                                 ┌┴─ Escherichia coli K12 (75)  
┌────────────────────────────────────────────────────────────────┴─ Escherichia coli E110019 (1)  
┤            ┌─────────────────────────────────────────────────── Escherichia coli (15-180/194) 1125A (2)  
└────────────┤                                        ┌────────────── Escherichia coli (11-169/175) O157:H7 str. EC4024   
             └────────────────────────────────────────┤         ┌─ Escherichia coli (12-161/178) 1044A (25)  
                                                      └─────────┤ ┌─ Escherichia coli (12-161/178) E22 (2)  
                                                                │┌┴─ fig|1040638.4.peg.4175 O104:H4 (12-161/178) str. LB226692 (6)  
                                                                └┤┌─ Escherichia coli (12-161/178) IAI1 (3)  
                                                                 └┤ ┌─ Escherichia coli (12-161/178) SMS-3-5   
                                                                  │┌┴─ Escherichia coli (12-161/178) K12 (37)  
                                                                  └┤┌─ Escherichia coli (12-161/178) MS 115-1   
                                                                   ││    ┌─ Escherichia coli (12-178/178) H299 (2)  
                                                                   └┤   ┌┴─ Escherichia coli (12-178/178) B185   
                                                                    │  ┌┴─ Escherichia coli (12-178/178) NC101   
                                                                    │ ┌┴─ Escherichia coli (12-178/178) 042 (2)  
                                                                    └┬┴─ Escherichia coli (12-161/178) 53638 (4)  
                                                                     └┬─ Escherichia coli (12-161/178) FVEC1302 (4)  
                                                                      └┬─ Escherichia coli (12-161/178) SE15   
                                                                       └┬─ Escherichia coli (12-161/178) APEC O1 (6)  
                                                                        └┬─ Escherichia coli (12-161/178) 536 (12)  
                                                                         └┬─ Escherichia coli (12-161/178) 2362-75 (1)  
                                                                          └─ Escherichia coli (12-161/178) ED1a (1)  
  
Transcriptional regulator yidN, Cro/CI family (18)
Putrescine utilization regulator (4)
hypothetical protein (1)
Others (1)