1.13.11.11	tryptophan 2,3-dioxygenase	3-hydroxy-4-methyl-anthranilate biosynthesis I	-	
1.13.11.52	indoleamine 2,3-dioxygenase	3-hydroxy-4-methyl-anthranilate biosynthesis I	-	
1.14.13.9	kynurenine 3-monooxygenase	3-hydroxy-4-methyl-anthranilate biosynthesis I	-	
3.5.1.9	arylformamidase	3-hydroxy-4-methyl-anthranilate biosynthesis I	-