The radiometric assay of alkaline phosphatase activity with 125-I-labelled phenolphthalein monophosphate.
Clin Chim Acta
; 60(3): 315-22, 1975 May 01.
Article
em En
| MEDLINE
| ID: mdl-237639
ABSTRACT
The coupling of 125-I to phenolphthalein monophosphate is described. Hydrolytic cleavage of the phosphate group by alkaline phosphatases (EC 3.1.-3.1) releases labelled phenolphthalein which is extracted into ethyl acetate at pH 10. This forms the basis of a sensitive assay for the enzyme with the advantages of sensitivity and rapidity from the use of a gamma-emitter. Results with Escherichia coli and calf intestine alkaline phosphatases are presented.
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Base de dados:
MEDLINE
Assunto principal:
Compostos Organofosforados
/
Fenolftaleínas
/
Fosfatase Alcalina
Limite:
Animals
Idioma:
En
Ano de publicação:
1975
Tipo de documento:
Article