Single potassium channel conductance in the frog node of Ranvier
- PMID: 6326879
- PMCID: PMC1434922
- DOI: 10.1016/S0006-3495(84)84230-7
Single potassium channel conductance in the frog node of Ranvier
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.
Similar articles
-
Simultaneous changes in the equilibrium potential and potassium conductance in voltage clamped Ranvier node in the frog.J Physiol. 1981 Sep;318:279-95. doi: 10.1113/jphysiol.1981.sp013864. J Physiol. 1981. PMID: 6275067 Free PMC article.
-
Evidence for the existence of three types of potassium channels in the frog Ranvier node membrane.J Physiol. 1981 Sep;318:297-316. doi: 10.1113/jphysiol.1981.sp013865. J Physiol. 1981. PMID: 6275068 Free PMC article.
-
Properties of the slow K+ current of the nodal membrane.J Physiol (Paris). 1981 May;77(9):1129-34. J Physiol (Paris). 1981. PMID: 6286963
-
Potassium currents in the frog node of Ranvier.Prog Biophys Mol Biol. 1983;42(1):1-20. doi: 10.1016/0079-6107(83)90002-0. Prog Biophys Mol Biol. 1983. PMID: 6312487 Review. No abstract available.
-
Electrophysiology and morphology of myelinated nerve fibers. II. Sodium and potassium channels in myelinated nerve fibers.Experientia. 1983 Sep 15;39(9):935-41. doi: 10.1007/BF01989757. Experientia. 1983. PMID: 6309556 Review. No abstract available.
References
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Medical