menaquinone-4 + NADH + H(+) = menaquinol-4 + NAD(+)
menaquinone-4 + nadh + h(+) = menaquinol-4 + nad(+)
menaquinone-4 + NADH + H(+) = menaquinol-4 + NAD(+)
menaquinone-4 + nadh + h(+) = menaquinol-4 + nad(+)