┬───────────────────────── Escherichia coli O103:H2 str. 12009   
└───────────────────┬───────────────────────────────────────────── Escherichia coli TA143   
                    └┬─ Escherichia coli O157:H7 EDL933   
                     └┬─ Escherichia coli K12 (122)  
                      └───────────────────────────────────────────── Escherichia coli (9-253/253) E2348/69 (1)  
  

  
Cytochrome c-type biogenesis protein CcmC, putative heme lyase for CcmE
 (5)