1.1.1.1	alcohol dehydrogenase	serotonin degradation	-	-	
1.2.1.3	aldehyde dehydrogenase (NAD+)	serotonin degradation	-	-	
1.4.3.4	monoamine oxidase	serotonin degradation	-	-	
2.4.1.17	glucuronosyltransferase	serotonin degradation	-	-	
2.8.2.1	aryl sulfotransferase	serotonin degradation	-	-