Article
beta-Adrenergic action on wild-type and KPQ mutant human cardiac Na+ channels: shift in gating but no change in Ca2+:Na+ selectivity.
Cardiovascular research - 1 May 1999
Chandra R, Chauhan V S, Starmer C F, Grant A O
Abstract excerpt
OBJECTIVE: Prior studies of the modulation of the Na+ current by sympathetic stimulation have yielded controversial results. Separation of the Na+ and Ca2+ currents poses a problem in myocyte preparations. The gating of cloned Na+ channels is different in oocytes compared with mammalian expression systems. We have examined the sympathetic modulation of the alpha-subunit of the wild-type human cardiac Na+ channel...
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