ISSN:
1432-1912
Keywords:
Brain-cortex slices
;
O-demethylase
;
Mescaline
;
Soluble supernatant
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Brain-cortex slices demethylate mescaline and p-methoxyacetanilide, a reference O-demethylating substrate, though the rate of demethylation of mescaline is about one third that of the reference substrate. The demethylase activity is localized mostly in the soluble supernatant (105000xg). It is purified 47-fold with respect to the demethylation of mescaline by ammonium sulfate precipitation and DEAE cellulose chromatography. The partially purified demethylase, which is stable for 3–5 days at −5° C in the presence of dithiothreitol and glutathione and is inhibited by p-chloromercuribenzoate, has maximal activity at pH between 7.2 and 8.0. It demethylates mescaline into 3,4-dimethoxy-5-hydroxyphenethylamine and 3,5-dimethoxy-4-hydroxyphenethylamine and some unidentified derivatives.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00498697
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