Title : Disopyramide is an effective inhibitor of mutant HERG K+ channels involved in variant 1 short QT syndrome.

Pub. Date : 2006 Sep

PMID : 16842817






1 Functional Relationships(s)
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1 We demonstrate here that the N588K-HERG mutation only slightly attenuates I(HERG) blockade by the Class Ia antiarrhythmic drug disopyramide (1.5-fold elevation of IC(50)), compared to quinidine (3.5-fold elevation of IC(50)) and the Class III antiarrhythmic drug E-4031 (11.5-fold elevation of IC(50)). E 4031 potassium voltage-gated channel subfamily H member 2 Homo sapiens