>tr|I4DJ38|I4DJ38_PAPXU 4a-hydroxytetrahydrobiopterin dehydratase OS=Papilio xuthus MADKLNSEERNGLLQPLIQSGWKVQSNRDAIEKEFKFKDFNEAFGFMSRVALLAEKMDHH PEWFNVYNKVQVTLSSHDVNGLSKRDIRMATFMEKLIN