┌─ Escherichia coli (3-566/567) MS 124-1 (1)  
                                                                       ┌┴─ Escherichia coli (3-566/567) MS 115-1   
                                                                      ┌┴─ Escherichia coli (3-566/567) O157:H7 EDL933   
                                                                     ┌┴┬─ Escherichia coli (3-566/567) M718   
                                                                    ┌┤ └─ Escherichia coli (3-566/567) K12 (102)  
                                                                    │└┬─ Escherichia coli (3-566/567) MS 78-1   
                                                                   ┌┤ └─ Escherichia coli (3-566/567) 2362-75   
                                                                   │└┬─ Escherichia coli (3-566/567) ETEC H10407   
                                                                   │ └┬─ Escherichia coli (3-566/567) CFT073 (1)  
                                                                  ┌┤  └┬─ Escherichia coli (3-566/567) MS 200-1   
                                                                  ││   └─ Escherichia coli (3-566/567) 83972 (11)  
┌─────────────────────────────────────────────────────────────────┤└┬─ Escherichia coli (3-566/567) 536 (1)  
│                                                                 │ └─ Escherichia coli (3-566/567) O55:H7 str. CB9615   
│                                                                 └─ Escherichia coli (3-566/567) 1827-70 (2)  
┤                                                                   ┌─ Escherichia coli APEC O1 (9)  
│                                                                  ┌┴─ Escherichia coli NC101 (1)  
│                                                                 ┌┴─ Escherichia coli M605 (1)  
│                                                                 │ ┌─ Escherichia coli 536 (5)  
└─────────────────────────────────────────────────────────────────┤┌┴─ Escherichia coli 83972 (5)  
                                                                  ││   ┌─ Escherichia coli B171 (4)  
                                                                  └┤  ┌┴─ Escherichia coli H591   
                                                                   │ ┌┴┬─ Escherichia coli E110019 (1)  
                                                                   │┌┤ └─ Escherichia coli 2362-75 (4)  
                                                                   └┤└─ Escherichia coli K12 (53)  
                                                                    └┬─ Escherichia coli MS 124-1 (1)  
                                                                     └┬─ Escherichia coli 042 (5)  
                                                                      └┬─ Escherichia coli MS 69-1   
                                                                       └┬─ Escherichia coli O157:H7 str. EC4206   
                                                                        └┬─ Escherichia coli 1044A (26)  
                                                                         └─ Escherichia coli B185   
  
Uptake hydrogenase large subunit (EC 1.12.99.6) (29)
Hydrogenase-2 large chain precursor( EC:1.18.99.1 ) (1)