Synonyms: 5,6,7,8-tetrahydrobiopterin biosynthetic process, tetrahydrobiopterin anabolism, tetrahydrobiopterin biosynthesis, tetrahydrobiopterin formation, tetrahydrobiopterin synthesis
Definition: 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.
GTP cyclohydrolase I monomer (folE)
Unification Links: GO:0006729
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