4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Xenopus tropicalis)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (xenopus tropicalis)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + H2O (Xenopus tropicalis)
4a-hydroxytetrahydrobiopterin => q-dihydrobiopterin + h2o (xenopus tropicalis)