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

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