melatonin + CoA + H(+) => 5-methoxytryptamine + acetyl-CoA
melatonin + coa + h(+) => 5-methoxytryptamine + acetyl-coa
melatonin + CoA + H(+) => 5-methoxytryptamine + acetyl-CoA
melatonin + coa + h(+) => 5-methoxytryptamine + acetyl-coa