┌─ Escherichia coli O157:H7   
                                                          ┌┴─ Escherichia coli O157:H7 EDL933   
                       ┌──────────────────────────────────┴┬─ Escherichia coli 1044A (21)  
      ┌────────────────┤                                   └─ Escherichia coli O157:H7 EDL933   
      │                └┬─ fig|1040638.4.peg.2598 O104:H4 str. LB226692 (11)  
     ┌┤                 └┬───────────────── Escherichia coli TA271   
     ││                  └───────────────── Escherichia coli M718   
     │└┬─ Escherichia coli IAI1 (4)  
┌────┤ └┬───────────────── Escherichia coli B088   
│    │  └─────────────────────────────────── Escherichia coli MS 115-1   
┤    └────────────────── Escherichia coli B171 (2) [2] 
│                             ┌────────────────── Escherichia coli E110019  [2] 
│            ┌────────────────┴── Escherichia coli B7A  [2] 
└────────────┤┌─ Escherichia coli E24377A   
             └┤┌─ Escherichia coli 042 (13)  
              └┤┌─────────────────────────────────── Escherichia coli MS 21-1   
               ││                                   ┌─ Escherichia coli 101-1 (21)  
               └┤                                  ┌┴─ Escherichia coli K12 (3)  
                │                 ┌────────────────┴───────────────── Escherichia coli ETEC H10407 (2)  
                └────────────────┬┴───────────────── Escherichia coli M605   
                                 └┬───────────────── Escherichia coli SE15   
                                  └┬─ Escherichia coli 536 (19)  
                                   └┬─ Escherichia coli F11   
                                    └┬───────────────── Escherichia coli 2362-75   
                                     └───────────────── Escherichia coli 83972 (6)  
  
[NiFe] hydrogenase metallocenter assembly protein HypE (24)
Others (1)