3,4-Dihydroxyphenylethylamine β-Hydroxylase

Abstract

The abbreviations used are: dopamine, 3,4-dihydroxyphenylethylamine;bathophenanthroline, 4,7-diphenyl-1, iO-phekmthroline: nitro blue tetrazolium.2.2'.di-D-nitronhenvl-5,5'-di~henvl-3,3'-(dimethoxy-4,4'-diphenylene)diietra~oiium"chlbride: " specially prepared by Matheson.Nitro blue tetrazolium and phenazine methosulfate were obtained from Sigma.Ascorabte oxidase was a generous gift of Dr. Charles Dawson.Cheles resin was purchased from Calbiochem, and the other materials were obtained as previously described (1, 2, 5).Methods