┌─ Escherichia coli (3-95/95) K12 (118)  
                                                               ┌┴─── Escherichia coli (3-95/95) M605   
┌──────────────────────────────────────────────────────────────┴─── Escherichia coli (3-95/95) E110019 (12)  
│                                                              ┌── Escherichia coli SE15   
┤                                                             ┌┴── Escherichia coli F11 (2)  
│                                                            ┌┴─ Escherichia coli 2362-75 (22)  
│                                                           ┌┴── Escherichia coli ED1a (1)  
└───────────────────────────────────────────────────────────┤ ┌── Escherichia coli B354   
                                                            └─┤  ┌─ Escherichia coli 1827-70 (2)  
                                                              │┌─┴─── Escherichia coli ATCC 8739 (1)  
                                                              └┤ ┌── Escherichia coli 101-1 (4)  
                                                               └┬┴───── Escherichia coli K12 (13)  
                                                                └┬───── Escherichia coli TA271   
                                                                 └─ fig|1040638.4.peg.3760 O104:H4 str. LB226692 (74)  
  

  
Ferredoxin-like protein FixX
 (13)
  
 Others 
(1)