L-threonate + NAD(+) => 3-dehydro-D-erythronate + NADH + H(+)
l-threonate + nad(+) => 3-dehydro-d-erythronate + nadh + h(+)
L-threonate + NAD(+) => 3-dehydro-D-erythronate + NADH + H(+)
l-threonate + nad(+) => 3-dehydro-d-erythronate + nadh + h(+)