┬─────────────────────────────────────────────────────── Escherichia coli K12 (55)  
└──────────────────────────────────────────────────────┬─ Escherichia coli (3-55/55) O157:H7 str. EC4042 (1)  
                                                       └┬───────────── Escherichia coli MS 21-1   
                                                        └─ fig|1040638.4.peg.1904 O104:H4 str. LB226692 (57)  
  

  
Bacterioferritin-associated ferredoxin
 (3)
  
 Others 
(1)