menaquinone-7 + NADH + H(+) <=> menaquinol-7 + NAD(+)
menaquinone-7 + nadh + h(+) <=> menaquinol-7 + nad(+)
menaquinone-7 + NADH + H(+) <=> menaquinol-7 + NAD(+)
menaquinone-7 + nadh + h(+) <=> menaquinol-7 + nad(+)