┬────────────────────── Escherichia coli O26:H11 str. 11368   
└───────┬─ Escherichia coli K12 (72)  
        └┬────────────────────────────── Escherichia coli EC4100B   
         └─────────────────────────────┬────────────────────────────── Escherichia coli TA280   
                                       └─ fig|1040638.4.peg.3630 O104:H4 str. LB226692 (50)  
  

  
Spermidine N1-acetyltransferase (EC 2.3.1.57)
 (4)
  
 Others 
(1)