┌───────────────── Escherichia coli IAI39 (1)  
┤           ┌──────────────────────────── Escherichia coli (20-199/199) 53638 (11)  
│          ┌┴──────────────────────────────────────────────────────── Escherichia coli EC4100B   
└──────────┤ ┌──────────────────────────── Escherichia coli O83:H1 str. NRG 857C   
           └┬┴─ Escherichia coli K12 (110)  
            └┬──────────────────────────── Escherichia coli O111:H- str. 11128   
             └─ Escherichia coli (20-199/199) O157:H7 EDL933 (1)  
  

  
YcfP protein: probably an esterase that is part of a salvage cluster
 (7)