label: 2-methyl-6-all-trans-nonaprenylbenzene-1,4-diol + S-adenosyl-L-methionine => plastoquinol-9 + S-adenosyl-L-homocysteine + H(+)
label_lc: 2-methyl-6-all-trans-nonaprenylbenzene-1,4-diol + s-adenosyl-l-methionine => plastoquinol-9 + s-adenosyl-l-homocysteine + h(+)