┌─────────────────────────── Escherichia coli K12 (117) [2] 
┤                                                                ┌─ Escherichia coli (18-122/122) 536 (8)  
│                                                                │  ┌─ Escherichia coli (18-122/122) 2362-75 (16)  
└────────────────────────────────────────────────────────────────┤ ┌┴─ Escherichia coli (19-122/122) 83972 (1)  
                                                                 │┌┴─ Escherichia coli O127:H6 str. E2348/69   
                                                                 └┤ ┌─ Escherichia coli (18-122/122) 042 (42)  
                                                                  └┬┴─ Escherichia coli (18-122/122) B354   
                                                                   └┬─ Escherichia coli (18-122/122) K12 (52)  
                                                                    └┬─ Escherichia coli (18-122/122) ATCC 8739 (1)  
                                                                     └┬─ Escherichia coli (18-122/122) ETEC H10407   
                                                                      └─ Escherichia coli (18-122/122) MS 115-1   
  
Iron binding protein SufA for iron-sulfur cluster assembly (10)
Iron binding protein IscA for iron-sulfur cluster assembly (1)