1.2.1.3	aldehyde dehydrogenase (NAD+)	dopamine degradation	-	
1.4.3.4	monoamine oxidase	dopamine degradation	-	
2.1.1.6	catechol O-methyltransferase	dopamine degradation	-	
2.8.2.1	aryl sulfotransferase	dopamine degradation	-