┌────────────── Escherichia coli (249-293/293) 53638 (1)  
┤             ┌─────────────────────────────────────────────────────── Escherichia coli (244-288/288) MS 115-1   
└────────────┬┴─────────────────────────── Escherichia coli (244-288/288) MS 69-1   
             └┬─ Escherichia coli (249-293/293) K12 (70)  
              └┬──────────────────────────── Escherichia coli (244-287/288) M605   
               └─ Escherichia coli (244-287/288) 1044A (30)  
  
2-hydroxy-6-ketonona-2,4-dienedioic acid hydrolase (EC 3.7.1.-) (6)