PMID: 4318781Sep 1, 1970

A protein binding assay for adenosine 3':5'-cyclic monophosphate

Proceedings of the National Academy of Sciences of the United States of America
A G Gilman


A simple and sensitive assay for adenosine 3':5'-cyclic monophosphate (cAMP) has been developed that is based on competition for protein binding of the nucleotide, presumably to a cAMP-dependent protein kinase. The nucleotide-protein complex is adsorbed on a cellulose ester filter. Assay conditions are such that a binding constant approaching 10(-9) M is obtained, and the assay is thus sensitive to 0.05-0.10 pmol of cAMP.


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Related Concepts

Chromatography, DEAE-Cellulose
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