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The demonstration in rat liver cell sap of protein kinase and phosphoprotein phosphatase active on fructose-bisphosphatase
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical and Physiological Chemistry. (engström lorentz)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical and Physiological Chemistry. (engström lorentz)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical and Physiological Chemistry. (engström lorentz)
1982 (English)In: Biochimica et Biophysica Acta - Protein Structure and Molecular Enzymology, ISSN 0167-4838, E-ISSN 1879-2588, Vol. 706, no 2, 239-244 p.Article in journal (Refereed) Published
Abstract [en]

A protein kinase active on fructose-bisphosphatase (D-fructose-1,6-bisphosphate 1-phosphohydrolase, EC 3.1.3.11) was demonstrated in rat liver cell sap. The protein kinase activity was stimulated by cyclic AMP and coincided with the activity of cyclic AMP-dependent protein kinase type I. In addition, three different peaks of phosphoprotein phosphatase active on [32P] phosphofructose-bisphosphatase were found on chromatography of rat liver cell sap on a DEAE-cellulose column. These phosphatases needed divalent cations for full activity. 5'-AMP, a negative modulator of fructose-bisphosphatase, had no effect on the phosphorylation-de-phosphorylation reactions of the enzyme. ATP and Ca2+ did not influence the dephosphorylation reaction of fructose-bisphosphatase.

Place, publisher, year, edition, pages
1982. Vol. 706, no 2, 239-244 p.
Keyword [en]
fructose-bisphosphatase, protein kinase, phosphoprotein phosphatase
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-172449DOI: 10.1016/0167-4838(82)90492-7OAI: oai:DiVA.org:uu-172449DiVA: diva2:514697
Available from: 2012-04-10 Created: 2012-04-10 Last updated: 2017-12-07Bibliographically approved

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Ekman, Pia

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