┌─ Escherichia coli K12 (112)  
                                                         ┌┴─ Escherichia coli 1125A (8)  
                                                        ┌┴─ Escherichia coli FVEC1302 (3)  
┌───────────────────────────────────────────────────────┴─ Escherichia coli M605 (1)  
┤                                                                   ┌─ Escherichia coli (4-224/241) MS 69-1   
│                                       ┌───────────────────────────┴─ Escherichia coli (4-224/241) MS 107-1 (2)  
└───────────────────────────────────────┤              ┌─ Escherichia coli (2-220/239) 042 (1)  
                                        └──────────────┤┌─ Escherichia coli (2-220/239) E110019 (1)  
                                                       └┤ ┌─ Escherichia coli (2-220/239) K12 (111)  
                                                        └┬┴─ Escherichia coli (2-220/239) TA280   
                                                         └┬─ Escherichia coli (2-220/239) H736   
                                                          └┬─ Escherichia coli (2-220/239) 83972 (13)  
                                                           └─ Escherichia coli (2-220/239) TA206 (1)  
  

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