(2R,3R)-tartrate + NAD(+) <=> 2-hydroxy-3-oxosuccinate + NADH + H(+)
(2r,3r)-tartrate + nad(+) <=> 2-hydroxy-3-oxosuccinate + nadh + h(+)
(2R,3R)-tartrate + NAD(+) <=> 2-hydroxy-3-oxosuccinate + NADH + H(+)
(2r,3r)-tartrate + nad(+) <=> 2-hydroxy-3-oxosuccinate + nadh + h(+)