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Saturation and Microsecond Gating of Current Indicate Depletion-induced Instability of the MaxiK Selectivity Filter

Patch clamp experiments on single MaxiK channels expressed in HEK293 cells were performed with a high temporal resolution (50-kHz filter) in symmetrical solutions with 50, 150, or 400 mM KCl and 2.5 mM CaCl(2) and 2.5 mM MgCl(2). At membrane potentials >+100 mV, the single-channel current showed...

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Detalhes bibliográficos
Main Authors: Schroeder, Indra, Hansen, Ulf-Peter
Formato: Artigo
Idioma:Inglês
Publicado em: The Rockefeller University Press 2007
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC2154363/
https://ncbi.nlm.nih.gov/pubmed/17591987
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1085/jgp.200709802
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