5-methoxytryptamine + S-adenosyl-L-homocysteine + H(+) => serotonin + S-adenosyl-L-methionine
5-methoxytryptamine + s-adenosyl-l-homocysteine + h(+) => serotonin + s-adenosyl-l-methionine
5-methoxytryptamine + S-adenosyl-L-homocysteine + H(+) => serotonin + S-adenosyl-L-methionine
5-methoxytryptamine + s-adenosyl-l-homocysteine + h(+) => serotonin + s-adenosyl-l-methionine