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  • Title: Occlusion of Rb+ by detergent-solubilized (Na+ + K+)-ATPase from shark salt glands.
    Author: Esmann M.
    Journal: Biochim Biophys Acta; 1985 May 14; 815(2):196-202. PubMed ID: 2986693.
    Abstract:
    Occlusion of Rb+ by C12E8-solubilized (Na+ + K+)-ATPase from shark salt glands has been measured. The rate of de-occlusion at room temperature is about 1 s-1, which is the same as for the membrane-bound enzyme. The amount of Rb+ occluded is 3 moles Rb+ per mole membrane-bound shark enzyme, whereas only about 2 moles Rb+ are occluded by the C12E8-solubilized enzyme.
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