┌─ Escherichia coli B7A (1)  
                                                                    ┌┴─ Escherichia coli M718   
                                                                   ┌┴─ Escherichia coli K12 (123)  
┌──────────────────────────────────────────────────────────────────┴─ Escherichia coli 101-1   
┤                                                                 ┌─ Escherichia coli (1-167/176) IAI39 (1)  
└─────────────────────────────────────────────────────────────────┤┌─ Escherichia coli (1-167/176) 042 (8)  
                                                                  ││  ┌─ Escherichia coli (1-167/176) 2362-75 (18)  
                                                                  └┤ ┌┴─ Escherichia coli (1-167/176) ED1a (1)  
                                                                   │┌┴─ Escherichia coli (1-167/176) NC101   
                                                                   └┤ ┌─ Escherichia coli (1-167/176) K12 (34)  
                                                                    └┬┴─ Escherichia coli (1-167/176) E110019 (1)  
                                                                     └┬─ Escherichia coli (1-167/176) O111:H- str. 11128 (1)  
                                                                      └┬─ Escherichia coli (1-167/176) B185   
                                                                       └─ Escherichia coli (1-167/176) 1044A (28)  
  

  
putative transcriptional regulator
 (9)
  
Transcriptional activator GadE
 (4)
  
putative
 (1)