demethylspheroidene + S-adenosyl-L-methionine => spheroidene + S-adenosyl-L-homocysteine + H(+)
demethylspheroidene + s-adenosyl-l-methionine => spheroidene + s-adenosyl-l-homocysteine + h(+)
demethylspheroidene + S-adenosyl-L-methionine => spheroidene + S-adenosyl-L-homocysteine + H(+)
demethylspheroidene + s-adenosyl-l-methionine => spheroidene + s-adenosyl-l-homocysteine + h(+)