Queried GO term:

  idGO:0046146   Detailed information
  nametetrahydrobiopterin metabolic process
  namespacebiological_process
  def"The chemical reactions and pathways involving 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, ISBN:0198506732]
  subsetgosubset_prok
  is_aGO:0006732 ! coenzyme metabolic process
  is_aGO:0042558 ! pteridine-containing compound metabolic process

No monarch genes has the input GO term: GO:0046146.