┌─ Escherichia coli 042 (4)  
  ┌───────────────┴─ Escherichia coli K12 (112)  
┌─┴────────────────────────────────────────────────────────────────── Escherichia coli K12 (132)  
│                                             ┌─ Escherichia coli (18-122/122) 2362-75 (16)  
┤                                            ┌┴─ Escherichia coli (20-122/122) 83972 (1)  
│                                           ┌┴─ Escherichia coli (18-122/122) 536 (8)  
└───────────────────────────────────────────┤ ┌─ Escherichia coli (18-122/122) 042 (42)  
                                            └┬┴─ Escherichia coli (18-122/122) B354   
                                             └┬─ Escherichia coli (18-122/122) MS 115-1   
                                              └┬─ Escherichia coli (18-122/122) ETEC H10407   
                                               └┬─ Escherichia coli (18-122/122) K12 (52)  
                                                └─ Escherichia coli (18-122/122) ATCC 8739 (1)  
  
Iron binding protein SufA for iron-sulfur cluster assembly (9)
Iron binding protein IscA for iron-sulfur cluster assembly (2)
ErpA, essential respiratory protein A / probable iron binding protein from the HesB_IscA_SufA family (1)