External K+ ions increase rate of opening of outward current channels in snail neurons


Outward currents in isolated, internally-perfused snail neurons were slowed and reduced in amplitude by replacement of external K with Na, Cs, or tris. This behavior is not predicted by electrodiffusion theory, but can be described by a second-order kinetic model. The effect of potassium replacement is to reduce the rate constant for channel opening by aout… (More)
DOI: 10.1007/BF01108314


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