Activation of glycogen synthetase and inactivation of phosphorylase kinase by the same phosphoprotein phosphatase |
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Authors: | F J Zieve W H Glinsmann |
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Institution: | Section on Physiological Controls, Laboratory of Biomedical Sciences, National Institute of Child Health and Human Development, Bethesda, Maryland 20014 USA |
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Abstract: | Purified rabbit muscle glycogen synthetase D phosphatase inactivates phosphorylase kinase. The inactivation is reversed by cyclic AMP-dependent protein kinase. It is postulated that the synthetase D phosphatase is a general phosphoprotein phosphatase which dephosphorylates proteins that are phosphorylated by the cyclic AMP-dependent kinase. |
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