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Ion binding in the Open HCN Pacemaker Channel Pore: Fast Mechanisms to Shape “Slow” Channels

I(H) pacemaker channels carry a mixed monovalent cation current that, under physiological ion gradients, reverses at ∼−34 mV, reflecting a 4:1 selectivity for K over Na. However, I(H) channels display anomalous behavior with respect to permeant ions such that (a) open channels do not exhibit the out...

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Detalles Bibliográficos
Autores principales: Lyashchenko, Alex K., Tibbs, Gareth R.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2248720/
https://www.ncbi.nlm.nih.gov/pubmed/18270171
http://dx.doi.org/10.1085/jgp.200709868