4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Bos taurus)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (bos taurus)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Bos taurus)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (bos taurus)