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. 1979 Aug;293:301–318. doi: 10.1113/jphysiol.1979.sp012890

A voltage-dependent gate in series with the inwardly rectifying potassium channel in frog striated muscle.

E Mancinelli, A Peres
PMCID: PMC1280714  PMID: 315463

Abstract

1. The degree of tubular potassium depletion and the decrease of potassium conductance due to hyperpolarizing pulses in striated muscular fibres have been examined with the three micro-electrode voltage-clamp technique. 2. The conductance of the fibre membrane has been measured in different extracellular K+ concentrations from 1 to 10 mM. 3. Comparison of the two sets of measurements shows that changes in tubular K+ concentration are not sufficient to account for the conductance decrease associated with hyperpolarization. 4. The presence of a voltage-dependent gate in series with the inwardly rectifying channel for K+ ions, suggested by Almers (1972a, b), is thus confirmed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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