1.5.1.34	6,7-dihydropteridine reductase	L-phenylalanine degradation V	
1.14.16.1	phenylalanine 4-monooxygenase	L-phenylalanine degradation V	
4.2.1.96	4a-hydroxytetrahydrobiopterin dehydratase	L-phenylalanine degradation V