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Authordc.contributor.authorAlcayaga, 
Authordc.contributor.authorCecchi, 
Authordc.contributor.authorAlvarez Alvarez, Miguel Adrián 
Authordc.contributor.authorLatorre, Claudio 
Admission datedc.date.accessioned2019-01-29T14:48:38Z
Available datedc.date.available2019-01-29T14:48:38Z
Publication datedc.date.issued1989
Cita de ítemdc.identifier.citationBiophysical Journal, Volumen 55, Issue 2, 2018, Pages 367-371
Identifierdc.identifier.issn00063495
Identifierdc.identifier.other10.1016/S0006-3495(89)82814-0
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/160752
Abstractdc.description.abstractStreaming potentials arising across large-conductance Ca2+-activated K+ channels incorporated into planar lipid bilayers were measured. Ca2+-activated channels obtained either from skeletal muscle or from smooth muscle membranes were used. Streaming potentials were extracted from the current-voltage relationship for the open channel obtained in the presence of an osmotic gradient. The osmotic gradient was established by adding glucose to one side of the membrane. At 300 mM KCl, the average streaming potential was 0.72 mV/osmol per kg for t-tubule channels and 0.83 mV/osmol per kg for smooth muscle channels. Streaming potential values depend on KCl concentration, they decrease as KCl concentration increases, and the value obtained by extrapolation to zero KCl concentration is 0.85 mV/osmol per kg. Assuming that water and ions cannot pass each other, at least in a region of the channel, the streaming potential values obtained indicate that this region contains a minimum of two and a maxi
Lenguagedc.language.isoen
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
Sourcedc.sourceBiophysical Journal
Keywordsdc.subjectBiophysics
Títulodc.titleStreaming potential measurements in Ca2+-activated K+ channels from skeletal and smooth muscle. Coupling of ion and water fluxes
Document typedc.typeArtículo de revista
dcterms.accessRightsdcterms.accessRightsAcceso Abierto
Catalogueruchile.catalogadorSCOPUS
Indexationuchile.indexArtículo de publicación SCOPUS
uchile.cosechauchile.cosechaSI


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile