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1: News Physiol Sci. 2002 Feb;17:32-7.Click here to read Links

From funny current to HCN channels: 20 years of excitation.

. School of Kinesiology, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.

The "funny" (pacemaker) current has unusual characteristics, including activation on hyperpolarization, permeability to K(+) and Na(+), modulation by internal cAMP, and a tiny, single-channel conductance. In cardiac cells and neurons, pacemaker channels control repetitive activity and excitability. The recent cloning of HCN subunits provides new insight into the molecular basis for the funny channel properties.

PMID: 11821534 [PubMed - indexed for MEDLINE]

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