Article
T75M-KCNJ2 mutation causing Andersen-Tawil syndrome enhances inward rectification by changing Mg2+ sensitivity.
Journal of molecular and cellular cardiology - 1 Aug 2007
Tani Yoshinori, Miura Daiji, Kurokawa Junko, Nakamura Kazufumi, Ouchida Mamoru, Shimizu Kenji, Ohe Tohru, Furukawa Tetsushi
Abstract excerpt
Andersen-Tawil syndrome (ATS) is a multisystem inherited disease exhibiting periodic paralysis, cardiac arrhythmias, and dysmorphic features. In this study, we characterized the KCNJ2 channels with an ATS mutation (T75M) which is associated with cardiac phenotypes of bi-directional ventricular tachycardia, syncope, and QT(c) prolongation. Confocal imaging of GFP-KCNJ2 fusion proteins showed that the T75M mutation...
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