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(+) => demethylspheroidene + s-adenosyl-l-methionine