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Channelosome and intracellular K+ channels in arrhythmia - Nature Cardiovascular Research
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Mutations in Kir2.1 resulting in defects in trafficking to the cardiomyocyte sarcolemma promote arrhythmia in Anderson–Tawil syndrome. Macias and colleagues provide a dual mechanism underlying cardiac arrhythmia that involves chaperoning of voltage-gated Na+ channels and a unique population of intracellular Kir2.1 channels that regulate Ca2+ cycling at the sarcoplasmic reticulum.
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