4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Canis familiaris)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (canis familiaris)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Canis familiaris)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (canis familiaris)