AbstractChanges in the cation composition of the ambient cell environment, at constant ionic strengths, altered the electrokinetic properties of the surface of normal adultRana pipienskidney cells in a manner which reflected more the physiochemical properties and binding affinities of the cation than its valence. The effect was expressed in the changes of the magnitude of the net surface charge, at any pH, and in the shift of the isoelectric point of the cell surface.
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