EOG8RJJHB	GO:0006729	23/84	tetrahydrobiopterin biosynthetic process	biological_process	"The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine." [CHEBI:15372, GOC:go_curators, ISBN:0198506732]
EOG8RJJHB	GO:0003874	23/84	6-pyruvoyltetrahydropterin synthase activity	molecular_function	"Catalysis of the reaction: 7,8-dihydroneopterin 3'-triphosphate = 6-pyruvoyl-5,6,7,8-tetrahydropterin + H(+) + triphosphate." [EC:4.2.3.12, RHEA:22051]
EOG8RJJHB	GO:0046872	5/84	metal ion binding	molecular_function	"Interacting selectively and non-covalently with any metal ion." [GOC:ai]
EOG8RJJHB	GO:0006728	1/84	pteridine biosynthetic process	biological_process	"The chemical reactions and pathways resulting in the formation of pteridine, pyrazino(2,3-dipyrimidine), the parent structure of pterins and the pteroyl group." [ISBN:0198506732]