┌─ Escherichia coli (22-277/277) APEC O1 (21)  
                                                                  ┌┴─ Escherichia coli (13-268/268) F11 (6)  
                                                                 ┌┴─ Escherichia coli (13-268/268) K12 (68)  
                                                                ┌┴┬─ Escherichia coli FVEC1302 (3)  
                                                               ┌┤ └─ Escherichia coli H591 (2)  
                                                               │└┬─ Escherichia coli (22-277/277) 042 (14)  
┌──────────────────────────────────────────────────────────────┤ └┬─ Escherichia coli B185   
│                                                              │  └─ Escherichia coli (22-277/277) MS 69-1   
│                                                              └┬─ Escherichia coli IAI39 (5)  
│                                                               └─ Escherichia coli WV_060327   
│                                                                    ┌─ Escherichia coli WV_060327   
│                                                                   ┌┴─ Escherichia coli (8-261/261) CFT073 (5)  
│                                                                  ┌┴─ Escherichia coli (34-287/287) APEC O1 (6)  
┤                                                                 ┌┴─ Escherichia coli O83:H1 str. NRG 857C   
│                                                                ┌┴┬─ Escherichia coli 2362-75 (9)  
│                                                               ┌┤ └─ Escherichia coli ED1a (1)  
│                                                              ┌┤└─ Escherichia coli (8-261/261) E2348/69 (1)  
│                                                             ┌┤└─ Escherichia coli 1044A (25)  
│                                                             │└─ Escherichia coli (8-261/261) ATCC 8739 (4)  
│                                                             │      ┌─ Escherichia coli (34-287/287) 042 (6)  
└─────────────────────────────────────────────────────────────┤     ┌┴─ Escherichia coli TA143   
                                                              │   ┌─┴┬─ Escherichia coli MS 69-1 (1)  
                                                              │  ┌┤  └─ Escherichia coli MS 21-1   
                                                              │┌─┤└─ Escherichia coli SMS-3-5   
                                                              └┤ └─ Escherichia coli IAI39 (1)  
                                                               │┌─ Escherichia coli MS 115-1   
                                                               └┤ ┌─ Escherichia coli 1827-70   
                                                                │┌┴─ Escherichia coli 53638 (1)  
                                                                └┤   ┌─ Escherichia coli B171 (4)  
                                                                 │  ┌┴─ Escherichia coli B7A (1)  
                                                                 └─┬┴─ Escherichia coli B088 (4)  
                                                                   └┬─ fig|1040638.4.peg.3757 O104:H4 str. LB226692 (4)  
                                                                    └┬─ Escherichia coli 101-1 (4)  
                                                                     └┬─ Escherichia coli MS 124-1 (1)  
                                                                      └┬─ Escherichia coli K12 (25)  
                                                                       └┬─ Escherichia coli MS 78-1   
                                                                        └─ Escherichia coli O111:H- str. 11128   
  
Electron transfer flavoprotein, beta subunit (26)
Electron transfer flavoprotein, beta subunit FixA (10)
Others (1)