┌─ Escherichia coli (1-203/215) MS 107-1   
                                                                      ┌┴─ Escherichia coli (1-203/215) MS 116-1   
                                                                     ┌┴─ Escherichia coli (1-203/215) 2362-75 (1)  
                                                                    ┌┴─ Escherichia coli (1-203/215) K12 (106)  
                                                                   ┌┴┬─ Escherichia coli (1-203/215) ATCC 8739 (1)  
                                                                  ┌┤ └─ Escherichia coli (1-203/215) MS 69-1   
┌─────────────────────────────────────────────────────────────────┤└─ Escherichia coli (1-203/215) MS 124-1 (1)  
│                                                                 └─ Escherichia coli (1-203/215) 1044A (8)  
┤                                                                ┌─ Escherichia coli SMS-3-5   
│                                                                │┌─ Escherichia coli IAI39 (1)  
└────────────────────────────────────────────────────────────────┤│    ┌─ Escherichia coli 1125A   
                                                                 ││   ┌┴─ Escherichia coli MS 196-1   
                                                                 └┤  ┌┴─ Escherichia coli K12 (52)  
                                                                  │ ┌┴┬─ Escherichia coli B088 (2)  
                                                                  │┌┤ └─ fig|1040638.4.peg.1850 O104:H4 str. LB226692 (23)  
                                                                  └┤└─ Escherichia coli M718   
                                                                   │┌─ Escherichia coli H299 (1)  
                                                                   └┤  ┌─ Escherichia coli FVEC1302 (3)  
                                                                    │ ┌┴─ Escherichia coli 042 (2)  
                                                                    └┬┴─ Escherichia coli MS 21-1   
                                                                     └┬─ Escherichia coli M605   
                                                                      └┬─ Escherichia coli 536 (4)  
                                                                       └┬─ Escherichia coli 2362-75 (17)  
                                                                        └┬─ Escherichia coli CFT073 (1)  
                                                                         └─ Escherichia coli MS 45-1   
  
Transcription repressor of multidrug efflux pump acrAB operon, TetR (AcrR) family (19)
Potential AcrEF/EnvCD operon repressor (5)
Others (1)