(R)-mevalonate + NAD(+) <=> (R)-mevaldate + NADH + H(+)
(r)-mevalonate + nad(+) <=> (r)-mevaldate + nadh + h(+)
(R)-mevalonate + NAD(+) <=> (R)-mevaldate + NADH + H(+)
(r)-mevalonate + nad(+) <=> (r)-mevaldate + nadh + h(+)