┌─ Escherichia coli (47-220/328) WV_060327   
                                          ┌┴─ Escherichia coli (47-220/328) 2362-75   
                                         ┌┴┬─ Escherichia coli (47-220/328) UM146   
                                        ┌┤ └─ Escherichia coli (47-220/328) O157:H7 EDL933 (1)  
                                        │└┬─ Escherichia coli (47-220/328) ED1a (1)  
                                       ┌┤ └─ Escherichia coli (47-220/328) 83972 (1)  
                        ┌──────────────┤└─ Escherichia coli (47-220/328) K12 (121)  
       ┌────────────────┤              └─ Escherichia coli (47-220/328) HS (1)  
       │                └───────────────────────────────────────────┬─ Escherichia coli (39-212/300) M605 (1)  
       │                                                            └┬─ Escherichia coli (39-212/300) 2362-75 (2)  
┌──────┤                                                             └┬─ Escherichia coli (39-212/300) MS 124-1 (1)  
│      │                                                              └─ Escherichia coli (39-212/300) K12 (121)  
│      └────────────────────────────── Escherichia coli (13-169/208) MS 146-1   
│                                                    ┌─ Escherichia coli (1-204/205) MS 21-1   
│                                                   ┌┴─ Escherichia coli (1-204/205) IAI39 (1)  
│                                                  ┌┴─ Escherichia coli (14-217/218) 042 (1)  
│                                                 ┌┴┬─ Escherichia coli (1-204/205) TA280   
│                                                 │ └┬─ Escherichia coli (1-204/205) TA143   
│                                                ┌┤  └─ Escherichia coli (1-204/205) B354   
│                                                │└┬─ Escherichia coli (1-204/205) MS 182-1   
│                                               ┌┤ └─ Escherichia coli (14-217/218) B171 (12)  
│                                               │└─ Escherichia coli (1-204/205) FVEC1302 (3)  
│                                              ┌┤┌─ Escherichia coli (1-204/205) MS 69-1   
│                                              │└┤┌─ Escherichia coli (1-204/205) B185   
│                                              │ └┤ ┌─ Escherichia coli (1-204/205) K12 (10)  
│                                              │  │┌┴─ Escherichia coli (1-197/200) MS 175-1   
│                                              │  └┤┌─ Escherichia coli (1-204/205) 101-1 (4)  
│                                             ┌┤   └┤ ┌─ Escherichia coli (14-217/218) ATCC 8739 (3)  
│                                             ││    └┬┴─ Escherichia coli (14-210/213) 53638 (1)  
│                                             ││     └┬─ Escherichia coli (14-218/218) E24377A (1)  
┤                            ┌────────────────┤│      └─ Escherichia coli (14-218/218) B7A (18)  
│                            │                │└─ Escherichia coli (1-204/205) M718 (1)  
│                       ┌────┤                └─ Escherichia coli (14-217/218) O157:H7 EDL933 (24)  
│                       │    │        ┌─ Escherichia coli (1-182/203) MS 21-1   
│                       │    └────────┤┌─ Escherichia coli (1-182/203) IAI39 (1)  
│                       │             └┤┌─ Escherichia coli (1-182/203) M605 (3)  
│                       │              └┤ ┌─ Escherichia coli (1-182/203) SE15   
│                       │               │┌┴─ Escherichia coli (1-182/203) APEC O1 (6)  
│                       │               └┤┌─ Escherichia coli (1-182/203) 53638 (1)  
│                       │                └┤ ┌─ Escherichia coli (1-182/203) K12 (50)  
│                       │                 └┬┴─ Escherichia coli (1-182/203) 101-1 (5)  
│                       │                  └┬─ Escherichia coli (1-182/203) E24377A (1)  
│                       │                   └─ fig|1040638.4.peg.2592 O104:H4 (1-182/203) str. LB226692 (52)  
│                       │                                            ┌─ Escherichia coli (3-166/641) TA206   
│                       │                                           ┌┴─ Escherichia coli (6-169/644) ED1a (1)  
│                       │                                          ┌┴─ Escherichia coli (6-169/644) M605 (1)  
│                       │                                         ┌┴─ Escherichia coli (6-169/644) 536 (4)  
│                       │                                        ┌┴┬─ Escherichia coli (6-160/644) WV_060327   
│                       │                                       ┌┤ └─ Escherichia coli (6-169/644) H299 (19)  
│                       │                                      ┌┤└─ Escherichia coli (6-169/644) B7A (13)  
└───────────────────────┤                                     ┌┤└─ Escherichia coli (6-169/644) B171 (20)  
                        │                                    ┌┤└─ Escherichia coli (6-169/644) 1044A (29)  
                        │                                    │└┬─ Escherichia coli (6-169/644) B185   
                        │                                   ┌┤ └─ Escherichia coli (6-169/644) K12 (38)  
                        │                                   │└─ Escherichia coli (6-169/644) ETEC H10407 (1)  
                        │                                  ┌┤ ┌─ Escherichia coli (6-169/644) TA143 (1)  
                        │                                  │└┬┴─ Escherichia coli (6-169/644) TA280   
                        │                                  │ └┬─ Escherichia coli (6-169/644) MS 69-1 (1)  
                        │                                 ┌┤  └┬─ Escherichia coli (6-169/644) 042 (1)  
                        │                                 ││   └─ Escherichia coli (6-169/644) FVEC1302 (8)  
                        │                ┌────────────────┤└─ Escherichia coli (6-169/644) MS 115-1 (3)  
                        │                │                └─ Escherichia coli (3-166/641) B354   
                        │           ┌────┤               ┌─ Escherichia coli (1-172/659) NC101   
                        │           │    └──────────────┬┴─ Escherichia coli (1-172/659) MS 21-1   
                        │           │                   └┬─ Escherichia coli (1-172/659) APEC O1 (1)  
                        │           │                    └─ Escherichia coli (1-172/659) E2348/69 (2)  
                        │           │                            ┌─ Escherichia coli M718 (2)  
                        │           │                           ┌┴─ Escherichia coli O55:H7 str. CB9615   
                        └───────────┤                          ┌┴─ Escherichia coli (2-176/176) 042 (1)  
                                    │                         ┌┴─ Escherichia coli IAI39 (1)  
                                    │                        ┌┴─ Escherichia coli K12 (119)  
                                    │                       ┌┴─ Escherichia coli O157:H7 EDL933 (1)  
                                    │                      ┌┴─ Escherichia coli MS 78-1   
                                    │            ┌─────────┴─ Escherichia coli 83972 (1)  
                                    │  ┌─────────┴──────── Escherichia coli (3-159/159) SMS-3-5   
                                    └──┤                       ┌─ Escherichia coli ED1a (1)  
                                       │                      ┌┴─ Escherichia coli (1-157/162) O83:H1 str. NRG 857C   
                                       └──────────────────────┤┌─ Escherichia coli M605   
                                                              └┤ ┌─ Escherichia coli (1-157/162) 83972 (12)  
                                                               │┌┴─ Escherichia coli (2-163/163) CFT073   
                                                               └┤┌─ Escherichia coli 536 (5)  
                                                                ││  ┌─ Escherichia coli (2-163/163) E2348/69 (2)  
                                                                └┤ ┌┴─ Escherichia coli B185 (2)  
                                                                 │┌┴┬─ Escherichia coli WV_060327   
                                                                 └┤ └─ Escherichia coli (2-163/163) 042 (1)  
                                                                  │┌─ Escherichia coli 101-1 (11)  
                                                                  └┤┌─ Escherichia coli E110019 (1)  
                                                                   ││  ┌─ Escherichia coli B7A (2)  
                                                                   └┤ ┌┴─ Escherichia coli (2-163/163) str. K-12 substr. DH10B (2)  
                                                                    │┌┴─ Escherichia coli K12 (42)  
                                                                    └┤ ┌─ Escherichia coli TA280   
                                                                     └┬┴─ Escherichia coli MS 69-1   
                                                                      └┬─ Escherichia coli IAI39 (1)  
                                                                       └─ Escherichia coli FVEC1302 (4)  
  
Pyridine nucleotide-disulphide oxidoreductase family protein (21)
Hydrogenase-4 component A (EC 1.-.-.-) (20)
Predicted oxidoreductase, Fe-S subunit (12)
Formate hydrogenlyase subunit 2 (9)
Electron transport protein HydN (9)
Hydrogenase-2 operon protein hybA precursor (8)
Putative electron transport protein ygfS (6)
Formate dehydrogenase O beta subunit (EC 1.2.1.2) (4)
Protein aegA (1)
COG1142: Fe-S-cluster-containing hydrogenase components 2 (1)
Anaerobic dimethyl sulfoxide reductase chain B (EC 1.8.99.-) (1)
COG0493: NADPH-dependent glutamate synthase beta chain and related oxidoreductases (1)
Others (1)