Activation of a potassium conductance by extracellular alkaline pH in oocytes of Xenopus laevis.


Electrophysiological properties of Xenopus oocytes exposed to alkaline extracellular pH (pHo) were investigated by measuring whole-cell currents using the two-electrode voltage-clamp method. Alkaline pHo (8.5-10.5) elicited an outward current in a pHo-dependent manner with a concomitant increase in the membrane conductance. This outward-current response was… (More)


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