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. 1984 Apr;45(4):855-8.
doi: 10.1016/S0006-3495(84)84230-7.

Single potassium channel conductance in the frog node of Ranvier

G de Bruin, I Guy, R J Van den Berg

Single potassium channel conductance in the frog node of Ranvier

G de Bruin et al. Biophys J. 1984 Apr.

Abstract

The single K+-channel conductance was calculated from the variance of the spontaneous potassium noise currents in voltage clamped frog node. Essential for this calculation is the mean potassium conductance during the noise measurement. So far this quantity has been underestimated, apparently due to K+-ion accumulation. With the proper values, the single K+-channel conductance is an increasing function of membrane voltage.

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