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. 2000 Aug 1;116(2):181–190. doi: 10.1085/jgp.116.2.181

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© 2000 The Rockefeller University Press

This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).

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Modulation by extracellular K⁺ of E418Q channels. (A and B) Reversible modification of the amplitude of K⁺ currents recorded in control conditions (2.7 mM K⁺) and during exposure to low (0 mM) or high (30 mM) extracellular [K⁺]. Internal [K⁺] was 130 mM. In all cases, 100-ms pulses were applied to +20 mV. (C, left) K⁺ currents recorded from a cell with a pulse to +20 mV during exposure to various extracellular [K⁺]. (Right) Changes of peak K⁺ current amplitude at +20 mV (ordinate) as a function of extracellular [K⁺] (abscissa). Data points are the mean and the vertical bars are the standard deviation of measurements done in eight cells.