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Science. 1986 Sep 12;233(4769):1195-7.

Ion channels in yeast.


Voltage-dependent ion channels have been found in the plasma membrane of the yeast Saccharomyces cerevisiae. Ion channel activities were recorded from spheroplasts or patches of plasma membrane with the patch-clamp technique. The most prominent activities came from a set of potassium channels with the properties of activation by positive but not negative voltages, high selectivity for potassium over sodium ion, unit conductance of 20 picosiemens, inhibition by tetraethylammonium or barium ions, and bursting kinetics.

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