Referenced in: none

Automatically associated channels: Kv11.1

Title: The hERG Potassium Channel and Drug Trapping: Insight from Docking Studies with Propafenone Derivatives.

Authors: Khac-Minh Thai, Andreas Windisch, Daniela Stork, Anna Weinzinger, Andrea Schiesaro, Robert H Guy, Eugen N Timin, Steffen Hering, Gerhard F Ecker

Journal, date & volume: , 2010 Feb 9 , ,

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/20146282

Abstract
The inner cavity of the hERG potassium ion channel can accommodate large, structurally diverse compounds that can be trapped in the channel by closure of the activation gate. A small set of propafenone derivatives was synthesized, and both use-dependency and recovery from block were tested in order to gain insight into the behavior of these compounds with respect to trapping and non-trapping. Ligand-protein docking into homology models of the closed and open state of the hERG channel provides the first evidence for the molecular basis of drug trapping.