| UER00815 | melatonin from serotonin: step 1/2~1 acetyl-CoA + 1 serotonin => 1 CoA + 1 N-acetylserotonin. | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | UCR02911 | acetyl-CoA + serotonin = CoA + N-acetylserotonin | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | UCR03130 | N-acetylserotonin + S-adenosyl-L-methionine = S-adenosyl-L-homocysteine + melatonin | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | UPA00837 | melatonin biosynthesis~Biosynthesis of melatonin (5-methoxy-N-acetyltryptamine), a naturally occurring hormone found in most animals and some of other living organisms, including algae. | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | UER00816 | melatonin from serotonin: step 2/2~1 N-acetylserotonin + 1 S-adenosyl-L-methionine => 1 S-adenosyl-L-homocysteine + 1 melatonin. | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | ULS00409 | melatonin from serotonin | None - {{∅}} | None - {{∅}} | Unexplained |  |