4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Drosophila melanogaster)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (drosophila melanogaster)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Drosophila melanogaster)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (drosophila melanogaster)