┌─ Escherichia coli 1125A   
                                                                    ┌┴─ Escherichia coli K12 (123)  
                                                                   ┌┴┬─ Escherichia coli E24377A (1)  
┌──────────────────────────────────────────────────────────────────┤ └─ Escherichia coli O157:H7 str. EC4401   
│                                                                  └─ Escherichia coli MS 21-1   
┤                                                                 ┌─ Escherichia coli NC101   
│                                                                 │┌─ Escherichia coli 042 (6)  
└─────────────────────────────────────────────────────────────────┤│   ┌─ Escherichia coli B185   
                                                                  ││  ┌┴─ Escherichia coli 1044A (24)  
                                                                  └┤ ┌┴─ Escherichia coli M718 (3)  
                                                                   │┌┴┬─ Escherichia coli (1-363/379) B171 (1)  
                                                                   ││ └─ Escherichia coli SMS-3-5   
                                                                   └┤ ┌─ Escherichia coli O26:H11 str. 11368   
                                                                    │┌┴─ Escherichia coli APEC O1 (1)  
                                                                    └┤ ┌─ Escherichia coli 83972 (6)  
                                                                     └┬┴─ Escherichia coli MS 21-1 (1)  
                                                                      └┬─ Escherichia coli K12 (71)  
                                                                       └┬─ Escherichia coli E110019 (1)  
                                                                        └┬─ Escherichia coli IAI39 (1)  
                                                                         └┬─ Escherichia coli ED1a (1)  
                                                                          └─ Escherichia coli MS 196-1   
  

  
Cytochrome d ubiquinol oxidase subunit II (EC 1.10.3.-)
 (21)