┌─ Escherichia coli (1-424/428) 1044A (23)  
                                                                    ┌┴─ Escherichia coli (1-424/428) O157:H7 str. EC869 (2)  
                                                                   ┌┴─ Escherichia coli (1-424/428) ED1a (1)  
                                                                  ┌┴─ Escherichia coli (1-424/428) E22 (1)  
                                                                 ┌┴─ Escherichia coli (1-424/428) E110019 (1)  
                                           ┌─────────────────────┴─┬── Escherichia coli (1-424/428) MS 196-1   
                         ┌─────────────────┤                       └─ Escherichia coli (1-424/428) B171 (1)  
                         │                 └────────── Escherichia coli (1-424/428) E22 (2)  
               ┌─────────┤                        ┌──── Escherichia coli (1-434/437) O103:H2 str. 12009   
               │         │                       ┌┴─ Escherichia coli (1-434/437) SE11   
               │         └──────────────────────┬┴─ Escherichia coli (1-428/437) 53638 (1)  
┌──────────────┤                                └─┬─ Escherichia coli (1-428/437) ED1a (1)  
│              │                                  └┬─ fig|6666666.5357.peg.320 TY-2482 (1-427/436) strain (1)  
│              │                                   └─ Escherichia coli (1-428/437) B171 (1)  
│              └────────────────────────────────────────────┬───── Escherichia coli ED1a (1)  
│                                                           └┬─ fig|1040638.4.peg.412 O104:H4 str. LB226692 (1)  
┤                                                            └┬─ Escherichia coli 1044A (7)  
│                                                             └─ Escherichia coli O26:H11 str. 11368   
│                                                          ┌─ Escherichia coli (4-428/431) O26:H11 str. 11368   
│                                                         ┌┴─ Escherichia coli (4-427/431) ED1a   
│                                                        ┌┴─ Escherichia coli (4-427/431) O103:H2 str. 12009   
│                                                       ┌┴─ Escherichia coli (3-422/426) ED1a   
└───────────────────────────────────────────────────────┤  ┌─ Escherichia coli (3-422/426) O55:H7 str. CB9615   
                                                        │ ┌┴─ Escherichia coli (3-422/426) SE11   
                                                        └─┤ ┌─ Escherichia coli (3-422/426) FVEC1302 (3)  
                                                          │ │  ┌─ Escherichia coli (3-422/426) MS 145-7   
                                                          └─┤ ┌┴─ Escherichia coli (3-422/426) 55989 (2)  
                                                            │┌┴─ Escherichia coli (3-422/426) E24377A (3)  
                                                            ││ ┌─ Escherichia coli (3-422/426) O83:H1 str. NRG 857C   
                                                            └┤┌┴─ Escherichia coli (3-422/426) TA280   
                                                             ││  ┌─ Escherichia coli (3-422/426) MS 78-1   
                                                             └┤ ┌┴─ Escherichia coli (3-422/426) H299   
                                                              │┌┴─ Escherichia coli (8-427/431) B7A (1)  
                                                              └┤┌─ Escherichia coli (3-422/426) O111:H- str. 11128   
                                                               └┤ ┌─ Escherichia coli (3-422/426) IAI1 (1)  
                                                                │┌┴─ Escherichia coli (3-422/426) MS 107-1   
                                                                └┤  ┌─ Escherichia coli (3-422/426) M718   
                                                                 │ ┌┴─ Escherichia coli (3-422/426) MS 119-7   
                                                                 └┬┴─ Escherichia coli (3-422/426) MS 69-1   
                                                                  └┬─ Escherichia coli (3-422/426) KO11 (2)  
                                                                   └┬─ Escherichia coli (8-427/431) 042 (7)  
                                                                    └┬─ Escherichia coli (3-422/426) 101-1   
                                                                     └─ Escherichia coli (8-427/431) ATCC 8739 (1)  
  
putative integrase (26)
Integrase (11)
Phage integrase (3)
Putative lambdoid prophage Qin defective integrase (1)
Others (2)