6-methoxy-2-all-trans-octaprenyl-1,4-benzoquinone + S-adenosyl-L-methionine <=> 2-methoxy-5-methyl-6-all-trans-octaprenyl-1,4-benzoquinone + S-adenosyl-L-homocysteine + H(+)
6-methoxy-2-all-trans-octaprenyl-1,4-benzoquinone + s-adenosyl-l-methionine <=> 2-methoxy-5-methyl-6-all-trans-octaprenyl-1,4-benzoquinone + s-adenosyl-l-homocysteine + h(+)
6-methoxy-2-all-trans-octaprenyl-1,4-benzoquinone + S-adenosyl-L-methionine <=> 2-methoxy-5-methyl-6-all-trans-octaprenyl-1,4-benzoquinone + S-adenosyl-L-homocysteine + H(+)
6-methoxy-2-all-trans-octaprenyl-1,4-benzoquinone + s-adenosyl-l-methionine <=> 2-methoxy-5-methyl-6-all-trans-octaprenyl-1,4-benzoquinone + s-adenosyl-l-homocysteine + h(+)