label: 2-demethylmenaquinol-10 + S-adenosyl-L-methionine = menaquinol-10 + S-adenosyl-L-homocysteine + H(+)
label_lc: 2-demethylmenaquinol-10 + s-adenosyl-l-methionine = menaquinol-10 + s-adenosyl-l-homocysteine + h(+)