Literature DB >> 2948489

A model for the phosphorylation of the Ca2+ + Mg2+-activated ATPase by phosphate.

R J Froud, A G Lee.   

Abstract

We have shown that changes in fluorescence intensity for the Ca2+ + Mg2+-activated ATPase of sarcoplasmic reticulum labelled with fluorescein isothiocyanate following the addition of Ca2+ can give the ratio of the two conformations (E1 and E2) of the ATPase. We show that the fluorescence response to Ca2+ is unaffected by Mg2+, phosphate or K+, implying that these ions bind equally well to the E1 and E2 conformations. A model is presented for phosphorylation of the ATPase by phosphate as a function of pH, Mg2+, K+ and Ca2+.

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Year:  1986        PMID： 2948489      PMCID： PMC1146967          DOI： 10.1042/bj2370207

Source DB:  PubMed          Journal:  Biochem J        ISSN： 0264-6021            Impact factor:   3.857


  25 in total

Review 1.  Energy interconversion by the Ca2+-dependent ATPase of the sarcoplasmic reticulum.

Authors:  L de Meis; A L Vianna
Journal:  Annu Rev Biochem       Date:  1979       Impact factor: 23.643

2.  Effect of K+ on phosphorylation of the sarcoplasmic reticulum ATPase by either Pi or ATP.

Authors:  R M Chaloub; L de Meis
Journal:  J Biol Chem       Date:  1980-07-10       Impact factor: 5.157

3.  Rapid kinetic study of the passive permeability of a Ca2+-ATPase rich fraction of the sarcoplasmic reticulum.

Authors:  V C Chiu; D H Haynes
Journal:  J Membr Biol       Date:  1980-10-31       Impact factor: 1.843

4.  Calcium gradient-dependent and calcium gradient-independent phosphorylation of sarcoplasmic reticulum by orthophosphate. The role of magnesium.

Authors:  C Punzengruber; R Prager; N Kolassa; F Winkler; J Suko
Journal:  Eur J Biochem       Date:  1978-12

5.  Evidence for a K+, Na+ permeable channel in sarcoplasmic reticulum.

Authors:  D McKinley; G Meissner
Journal:  J Membr Biol       Date:  1978-12-15       Impact factor: 1.843

6.  Ionized and bound calcium inside isolated sarcoplasmic reticulum of skeletal muscle and its significance in phosphorylation of adenosine triphosphatase by orthophosphate.

Authors:  R Prager; C Punzengruber; N Kolassa; F Winkler; J Suko
Journal:  Eur J Biochem       Date:  1979-06

7.  Phosphorylation of calcium adenosinetriphosphatase by inorganic phosphate: van't Hoff analysis of enthalpy changes.

Authors:  D W Martin; C Tanford
Journal:  Biochemistry       Date:  1981-08-04       Impact factor: 3.162

8.  Formation of magnesium-phosphoenzyme and magnesium-calcium-phosphoenzyme in the phosphorylation of adenosine triphosphatase by orthophosphate in sarcoplasmic reticulum. Models of a reaction sequence.

Authors:  J Suko; B Plank; P Preis; N Kolassa; G Hellmann; W Conca
Journal:  Eur J Biochem       Date:  1981-10

9.  A kinetic model for the Ca2+ + Mg2+-activated ATPase of sarcoplasmic reticulum.

Authors:  G W Gould; J M East; R J Froud; J M McWhirter; H I Stefanova; A G Lee
Journal:  Biochem J       Date:  1986-07-01       Impact factor: 3.857

10.  Sarcoplasmic reticulum. IX. The permeability of sarcoplasmic reticulum membranes.

Authors:  P F Duggan; A Martonosi
Journal:  J Gen Physiol       Date:  1970-08       Impact factor: 4.086
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  14 in total

1.  Kinetic and mesoscopic non-equilibrium description of the Ca(2+) pump: a comparison.

Authors:  Anders Lervik; Dick Bedeaux; Signe Kjelstrup
Journal:  Eur Biophys J       Date:  2012-03-28       Impact factor: 1.733

2.  Anionic phospholipids decrease the rate of slippage on the Ca(2+)-ATPase of sarcoplasmic reticulum.

Authors:  K A Dalton; J D Pilot; S Mall; J M East; A G Lee
Journal:  Biochem J       Date:  1999-09-01       Impact factor: 3.857

3.  Effects of pH on phosphorylation of the Ca2+-ATPase of sarcoplasmic reticulum by inorganic phosphate.

Authors:  Y M Khan; J M East; A G Lee
Journal:  Biochem J       Date:  1997-02-01       Impact factor: 3.857

4.  Conformational transitions in the Ca2+ + Mg2+-activated ATPase and the binding of Ca2+ ions.

Authors:  R J Froud; A G Lee
Journal:  Biochem J       Date:  1986-07-01       Impact factor: 3.857

Review 5.  Interactions of lipids and proteins: some general principles.

Authors:  A G Lee
Journal:  J Bioenerg Biomembr       Date:  1987-12       Impact factor: 2.945

6.  Sarcoplasmic reticulum calcium pump: a model for Ca2+ binding and Ca2+-coupled phosphorylation.

Authors:  C Tanford; J A Reynolds; E A Johnson
Journal:  Proc Natl Acad Sci U S A       Date:  1987-10       Impact factor: 11.205

7.  A kinetic model for Ca2+ efflux mediated by the Ca2+ + Mg2+-activated ATPase of sarcoplasmic reticulum.

Authors:  J M McWhirter; G W Gould; J M East; A G Lee
Journal:  Biochem J       Date:  1987-08-01       Impact factor: 3.857

8.  Phenolic Compounds from Morus nigra Regulate Viability and Apoptosis of Pancreatic β-Cells Possibly via SERCA Activity.

Authors:  Vladimir Heger; Barbora Benesova; Jana Viskupicova; Magdalena Majekova; Zoofishan Zoofishan; Attila Hunyadi; Lubica Horakova
Journal:  ACS Med Chem Lett       Date:  2020-03-26       Impact factor: 4.345

9.  The Ca(2+)-transporting ATPases of rabbit and trout exhibit different pH- and temperature-dependences.

Authors:  E N Chini; F G de Toledo; M C Albuquerque; L de Meis
Journal:  Biochem J       Date:  1993-07-15       Impact factor: 3.857

10.  Effects of Mg2+, anions and cations on the Ca2+ + Mg2+-activated ATPase of sarcoplasmic reticulum.

Authors:  H I Stefanova; R M Napier; J M East; A G Lee
Journal:  Biochem J       Date:  1987-08-01       Impact factor: 3.857
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