The reversal of the calcium pump of cardiac sarcoplasmic reticulum

  • J. Suko
  • G. Hellmann
  • F. Winkler
Conference paper

Summary

The reversal of the calcium pump of cardiac sarcoplasmic reticulum (SR) prepared from dogs was investigated. Phosphorylation of the calcium transport ATPase by orthophosphate and ATP synthesis from ADP and orthophosphate by SR passively preloaded with calcium are demonstrated. The ADP-dependent calcium efflux from SR loaded with calcium in the presence of acetylphosphate is stoichiometrically coupled to ATP synthesis from ADP and orthophosphate.

Die Umkehr der Calcium-Pumpe des myokardialen sarkoplasmatischen Retikulums

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Copyright information

© Dr. Dietrich Steinkopff Verlag, Darmstadt 1977

Authors and Affiliations

  • J. Suko
    • 1
  • G. Hellmann
    • 1
  • F. Winkler
    • 1
  1. 1.Pharmakologisches InstitutUniversität WienWien IXÖsterreich

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