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Radicke S, Vaquero M, Caballero R, Gómez R, Núñez L, Tamargo J, Ravens U, Wettwer E, Delpón E

Effects of MiRP1 and DPP6 beta-subunits on the blockade induced by flecainide of Kv4.3/KChIP2 channels.

Br. J. Pharmacol.. 2008 Jun;154(4):774-86, PMID: 18536731

The human cardiac transient outward potassium current (Ito) is believed to be composed of the pore-forming Kv4.3 alpha-subunit, coassembled with modulatory beta-subunits as KChIP2, MiRP1 and DPP6 proteins. beta-Subunits can alter the pharmacological response of Ito; therefore, we analysed the effects of flecainide on Kv4.3/KChIP2 channels coassembled with MiRP1 and/or DPP6 beta-subunits.

PHARMACOLOGY & PHARMACY