┌─ Escherichia coli (5-219/226) FVEC1302 (3)  
                                                        ┌┴─ Escherichia coli (5-219/226) K12 (112)  
                                                       ┌┴─ Escherichia coli (1-212/219) 1125A (8)  
┌──────────────────────────────────────────────────────┴─ Escherichia coli (5-219/226) M605 (1)  
┤                                                                  ┌─ Escherichia coli (1-239/241) MS 69-1   
└─────────────────────────────────────┬────────────────────────────┴─ Escherichia coli (1-239/241) MS 107-1 (2)  
                                      └───────────────┬─ Escherichia coli 042 (1)  
                                                      └┬─ Escherichia coli TA280   
                                                       └┬─ Escherichia coli E110019 (1)  
                                                        └┬─ Escherichia coli K12 (111)  
                                                         └┬─ Escherichia coli H736   
                                                          └┬─ Escherichia coli TA206 (1)  
                                                           └─ Escherichia coli 83972 (13)  
  

  
Fumarate respiration transcriptional regulator DcuR
 (9)
  
Transcriptional regulatory protein CitB, DpiA
 (4)