a menaquinone + NADH + H(+) => a menaquinol + NAD(+)
a menaquinone + nadh + h(+) => a menaquinol + nad(+)
a menaquinone + NADH + H(+) => a menaquinol + NAD(+)
a menaquinone + nadh + h(+) => a menaquinol + nad(+)