Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Charge translocation by the sarcoplasmic Ca ATPase after an ATP concentration jump

MPG-Autoren
/persons/resource/persons137696

Hartung,  Klaus
Department of Biophysical Chemistry, Max Planck Institute of Biophysics, Max Planck Society;

/persons/resource/persons137653

Fendler,  Klaus
Department of Biophysical Chemistry, Max Planck Institute of Biophysics, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Hartung, K., & Fendler, K. (1989). Charge translocation by the sarcoplasmic Ca ATPase after an ATP concentration jump. Journal of Protein Chemistry, 8(3), 377-379. doi:10.1007/BF01674287.


Zitierlink: https://hdl.handle.net/21.11116/0000-0007-1FCE-0
Zusammenfassung
The Ca ATPase of the sarcoplasmic reticulum (SR) translocates Ca from the cytoplasmic
space into the lumen of the SR using ATP hydrolysis as an energy source. The established
stochiometry is 2 Ca/ATP (Hasselbach, 1978). The electrical current related to the turnover
of this transport enzyme could be measured recently (Hartung et al., 1987) by adopting a
method introduced for the measurement of pump currents generated by the NaK ATPase
(Fendler et al., 1985). Vesicles derived from fragmented SR are adsorbed on one side of a
planar (black) lipid membrane, acting as a capacitive electrode. Ca transport by the Ca
ATPase is initiated by an ATP concentration jump which is achieved by the photolysis of
caged ATP (Kaplan et al., 1978).