┌─ Escherichia coli MS 69-1   
┌─────┴─────────────────────── Escherichia coli H591 (1)  
│                                                       ┌─ Escherichia coli UTI89   
│                                           ┌───────────┴──────────── Escherichia coli IHE3034   
│                                        ┌──┴───────── Escherichia coli APEC O1 (1)  
┤                 ┌──────────────────────┴─ Escherichia coli S88 (2)  
│                ┌┴──┬──────────────────────────────────────────────── Escherichia coli B088   
│               ┌┤   └───────── Escherichia coli MS 107-1   
│    ┌──────────┤└─ Escherichia coli ETEC H10407 (1)  
│    │          └──────────┬─────────── Escherichia coli TA280   
└────┤                     └─ Escherichia coli (12-228/228) M605   
     │┌─────────── Escherichia coli H299   
     └┤┌─────────── Escherichia coli 1212A (3)  
      └┤ ┌─────────── Escherichia coli O26:H11 str. 11368   
       │┌┴─────────── Escherichia coli ETEC H10407   
       └┤  ┌─────────── Escherichia coli ED1a (1)  
        │ ┌┴─────────── Escherichia coli M718   
        └┬┴─ fig|6666666.5357.peg.2786 TY-2482 (12-228/228) strain (15)  
         └──┬─ Escherichia coli (5-221/221) E22 (1)  
            └───────┬─────────── Escherichia coli IHE3034   
                    └┬─────────── Escherichia coli H299   
                     └─────────── Escherichia coli IAI39 (1)  
  

  
DNA adenine methylase
 (20)
  
phage N-6-adenine-methyltransferase
 (1)
  
 Others 
(1)