michaelis constants and maximal velocities for phenylacetaldehyde ( a metabolite of phenylethylamine ) , 3,4-dihydroxyphenylacetaldehyde ( a metabolite of dopamine ) , 5-hydroxyindole acetaldehyde ( a metabolite of serotonin ) , and 3,4-dihydroxyphenylglycolaldehyde ( a metabolite of epinephrine and norepinephrine ) have been determined for both cytoplasmic ( e1 ) and mitochondrial ( e2 ) isozymes of human liver aldehyde dehydrogenase ( ec 1.2.1.3 ) .
C0010834
cytoplasmic
C0026237
mitochondrial