Dopa and dopamine in glusulase: possible artifact in studies on catecholamine metabolism.
Relatively high concentrations of dopa and dopamnine were found in Glusulase, an enzyme preparation widely used in studies on catecholamine metabolism. This contamination may be a source of error in some studies, particularly in those measuring the endogenous concentrations of these catechols and their metabolic products.
D000818:Animals; D002395:Catecholamines / Q000378:metabolism; D002854:Chromatography, Paper; D004295:Dihydroxyphenylalanine / Q000302:isolation & purification*; D004285:Dogs; D004298:Dopamine / Q000302:isolation & purification*; D005966:Glucuronidase / Q000032:analysis*; D006801:Humans; D009097:Multienzyme Complexes / Q000032:analysis*; D012908:Snails / Q000201:enzymology; D013050:Spectrometry, Fluorescence; D013429:Sulfatases / Q000032:analysis*
D002395:Catecholamines; D009097:Multienzyme Complexes; D004295:Dihydroxyphenylalanine; D013429:Sulfatases; D005966:Glucuronidase; D004298:Dopamine