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ECB-ART-34705
J Theor Biol 1984 Mar 21;1072:189-201. doi: 10.1016/s0022-5193(84)80021-1.
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Analysis of the effects of cesium ions on potassium channel currents in biological membranes.

Clay JR , Shlesinger MF .


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Cesium ions block potassium channels in biological membranes in a voltage dependent manner. For example, external cesium blocks inward current with little or no effect on outward current. Consequently, it produces a characteristic N-shaped current-voltage relationship. We have modeled this result by single file diffusion of ions in a narrow channel spanning the membrane with a special blocking site in the channel for cesium ions. The model enables us to make detailed comparisons of the effects of cesium on potassium channels in different types of biological membranes.

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Genes referenced: LOC115924212