┌─────────────── Escherichia coli (7-161/161) APEC O1 (6)  
┤           ┌──────────────────────────────────────────────────────── Escherichia coli B354   
└───────────┤ ┌─ Escherichia coli K12 (119)  
            └┬┴─ Escherichia coli (7-161/161) O157:H7 EDL933 (1)  
             └┬──────────────────────────── Escherichia coli (7-161/161) HS (1)  
              └──────────────────────────── Escherichia coli ED1a (1)  
  

  
putative protein PaaI, possibly involved in aromatic compounds catabolism
 (5)
  
hypothetical protein
 (1)