Effects of flecainide and quinidine on Kv4.2 currents: voltage dependence and role of S6 valines.

Abstract excerpt

1. The effects of flecainide and quinidine were studied on wild-type Kv4.2 channels (Kv4.2WT), channels with deletion of the N-terminal domain (N-del) and channels with mutations in the valine residues located at positions 402 and 404 in the presence (V[402,404]I) or in the absence (N-del/V[402,404]I) of the N-terminus. 2. The experiments were performed at 37 degrees C on COS7 cells using the whole-cell...

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