Cyclic 3′,5′-Adenosine Monophosphate Phosphodiesterase of Escherichia coli |
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Authors: | L. D. Nielsen D. Monard H. V. Rickenberg |
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Abstract: | The cyclic 3',5'-adenosine monophosphate (c-AMP) phosphodiesterase from Escherichia coli has been partially purified. The enzyme has an apparent molecular weight of 30,000, a Michaelis constant of 0.5 mM c-AMP, and a pH optimum of 7. The partially purified enzyme requires for activity the presence of a reducing compound and of either iron or a protein which seemingly acts as iron carrier. |
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