┌─ Escherichia coli (119-166/169) 1212A (92)  
                                  ┌┴─ Escherichia coli (1-44/47) 1044A (9)  
                                ┌─┴── Escherichia coli (64-111/114) O55:H7 str. CB9615   
                               ┌┴─ Escherichia coli (153-200/203) MS 196-1   
                              ┌┴── Escherichia coli (119-165/169) 53638 (4)  
                         ┌────┴─ Escherichia coli (153-197/203) SE11   
          ┌──────────────┴─ Escherichia coli (118-164/168) TA280   
          │                                               ┌─ Escherichia coli (132-176/181) 1125A (23)  
  ┌───────┤                                              ┌┴── Escherichia coli (132-180/189) K12 (7)  
  │       └──────────────────────────────────────────────┤    ┌─ Escherichia coli (132-181/181) CFT073 (2)  
  │                                                      └───┬┴──── Escherichia coli (132-181/181) MS 115-1 (2)  
┌─┤                                                          └┬─ Escherichia coli (132-181/181) K12 (88)  
│ │                                                           └─ fig|1040638.4.peg.4847 O104:H4 (132-181/181) str. LB226692 (19)  
│ └─────────────────────────── Escherichia coli (132-182/182) M605   
│                                              ┌─ Escherichia coli (113-157/175) 1125A (20)  
┤                                    ┌─────────┴─ Escherichia coli (113-157/175) O103:H2 str. 12009   
│                               ┌────┴── Escherichia coli (118-162/180) TA143   
│                              ┌┴──────────────────────── Escherichia coli (132-176/200) B185   
│    ┌─────────────────────────┴────┬──────────────────────── Escherichia coli (118-162/180) MS 124-1 (1)  
└────┤                              └────────── Escherichia coli (118-162/180) E110019   
     └────────────────────────────────────────┬─ fig|1040638.4.peg.300 O104:H4 (88-138/138) str. LB226692   
                                              └┬─ fig|6666666.5357.peg.4339 TY-2482 (88-138/138) strain   
                                               └┬─ Escherichia coli (132-182/182) 042 (1)  
                                                └┬─ Escherichia coli (88-138/138) 83972 (20)  
                                                 └┬─ fig|1040638.4.peg.4330 O104:H4 str. LB226692   
                                                  └┬─ Escherichia coli (58-108/108) M605   
                                                   └┬─ Escherichia coli (88-138/138) APEC O1 (6)  
                                                    └┬─ Escherichia coli (93-143/143) B185 (2)  
                                                     └─────────┬─ Escherichia coli (132-181/182) 55989 (3)  
                                                               └─ Escherichia coli (132-181/182) 2362-75 (3)  
  
Terminase small subunit (11)
Putative terminase small subunit (10)
phage DNA packaging protein NU1-like protein (2)
P21 prophage-derived terminase small subunit (1)
bacteriophage DNA packaging protein (1)
IS, phage, Tn; Phage-related functions and prophages (1)
Others (4)