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. 1979 Apr 12;567(2):347-56.
doi: 10.1016/0005-2744(79)90121-9.

Cyclic AMP-dependent and -independent protein kinases of the water mold, Blastocladiella emersonii

Cyclic AMP-dependent and -independent protein kinases of the water mold, Blastocladiella emersonii

M H Juliani et al. Biochim Biophys Acta. .

Abstract

Protein kinase (ATP:protein phosphotransferase, EC 2.7.1.37) and cyclic adenosine 3',5'-monophosphate binding activities have been identified in zoospore extracts of the water mold Blastocladiella emersonii. More than 75% of these activities is found in the soluble fraction. Soluble protein kinase activity is resolved in three peaks(I, II and III) by DEAE-cellulose chromatography. Peak I is casein dependent and insensitive to cyclic AMP. Peak II is histone dependent and cyclic AMP independent; this enzyme is inhibited by the heat-stable inhibitor from bovine muscle. Peak III utilizes histone as substrate and is activated by cyclic AMP.

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