Term Name:	tetrahydrobiopterin catabolic process
Synonyms:	5,6,7,8-tetrahydrobiopterin catabolic process, tetrahydrobiopterin breakdown, tetrahydrobiopterin catabolism, tetrahydrobiopterin degradation
Definition:	The chemical reactions and pathways resulting in the breakdown 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.
Ontology:	GO: Biological Process [GO:0046147]    QuickGO    AmiGO