preferred_name: a menaquinol + NAD(+) => a menaquinone + NADH + H(+)
preferred_name_lc: a menaquinol + nad(+) => a menaquinone + nadh + h(+)
label: a menaquinol + NAD(+) => a menaquinone + NADH + H(+)
label_lc: a menaquinol + nad(+) => a menaquinone + nadh + h(+)