┌─ Escherichia coli M605   
     ┌┴─── Escherichia coli O83:H1 str. NRG 857C (1)  
  ┌──┴──┬─ Escherichia coli IAI1 (2)  
┌─┤     └─── Escherichia coli O103:H2 str. 12009   
│ └─ Escherichia coli NC101   
│        ┌─ Escherichia coli (41-138/138) O157:H7 (19)  
│     ┌──┴─ Escherichia coli O157:H7 str. EC4501   
│  ┌──┴┬─── Escherichia coli MS 182-1   
┤ ┌┤   └─ Escherichia coli EC4100B   
│┌┤└─── Escherichia coli 536 (3)  
││└─── Escherichia coli O157:H7 str. EC4024 (10)  
││  ┌─ Escherichia coli (41-134/134) FVEC1302   
││ ┌┴─── Escherichia coli EC4100B   
└┤┌┴─ Escherichia coli 1125A (30)  
 ││   ┌─── Escherichia coli ATCC 8739 (1)  
 ││  ┌┴─ Escherichia coli UM146   
 ││ ┌┴────── Escherichia coli 83972 (15)  
 └┤┌┴┬─── fig|1040638.4.peg.4993 O104:H4 str. LB226692 (11)  
  ││ └──┬──── Escherichia coli (1-80/84) E110019 (1)  
  ││    └─ Escherichia coli ED1a (1)  
  ││                                                  ┌─────────────────── Escherichia coli (2-99/99) B185 (1)  
  └┤                        ┌─────────────────────────┴──────────────── Escherichia coli (1-97/98) 53638 (3)  
   │    ┌───────────────────┴─────────────────────── fig|1040638.4.peg.475 O104:H4 str. LB226692 (2)  
   │ ┌──┴─ Escherichia coli MS 145-7   
   │┌┴─── Escherichia coli ETEC H10407   
   └┤ ┌─── Escherichia coli B185   
    └┬┴────── Escherichia coli BL21 (2)  
     └┬─── Escherichia coli B171 (5)  
      └┬─── Escherichia coli E110019 (1)  
       └─────┬─ Escherichia coli O157:H7 EDL933 (1)  
             └─ Escherichia coli 1044A (5)  
  

  
Host-nuclease inhibitor protein Gam
 (25)
  
putative factor; Integration, recombination (Phage or Prophage Related)
 (2)
  
Phage host-nuclease inhibitor Gamma
 (1)
  
Gam
 (1)
  
 Others 
(2)