┌──────────────────────────────────────────── Escherichia coli (198-347/438) MS 69-1 (2)  
┤                                      ┌─ fig|6666666.5357.peg.2015 TY-2482 (194-338/432) strain (2) [2] 
│                 ┌────────────────────┴─── Escherichia coli (194-337/432) M718 (4)  
└─────────────────┤                         ┌─ Escherichia coli (194-338/433) K12 (130)  
                  └───────────────┬─────────┴─ Escherichia coli (163-307/402) O103:H2 str. 12009   
                                  └─────────────────────────────────┬─ Escherichia coli (198-346/444) MS 107-1   
                                                                    └─ Escherichia coli (198-346/444) MS 69-1 (2)  
  

  
C4-dicarboxylate transporter DcuA
 (2)
  
Anaerobic C4-dicarboxylate transporter DcuB
 (2)
  
anaerobic C4-dicarboxylate membrane transporter
 (1)
  
Anaerobic C4-dicarboxylate transporter
 (1)
  
 Others 
(1)