(S)-dihydroorotate + NAD(+) => orotate + NADH + H(+)
(s)-dihydroorotate + nad(+) => orotate + nadh + h(+)
(S)-dihydroorotate + NAD(+) => orotate + NADH + H(+)
(s)-dihydroorotate + nad(+) => orotate + nadh + h(+)