A CACNA1C Variant Associated with Reduced Voltage-Dependent Inactivation, Increased CaV1.2 Channel Window Current, and Arrhythmogenesis
Hennessey JA, Boczek NJ, Jiang YH, Miller JD, Patrick W, Pfeiffer R, Sutphin BS, Tester DJ, Barajas-Martinez H, Ackerman MJ, Antzelevitch C, Kanter R, Pitt GS. A CACNA1C Variant Associated with Reduced Voltage-Dependent Inactivation, Increased CaV1.2 Channel Window Current, and Arrhythmogenesis. PLOS ONE 2014, 9: e106982. PMID: 25184293, PMCID: PMC4153713, DOI: 10.1371/journal.pone.0106982.Peer-Reviewed Original ResearchConceptsSudden unexplained infant deathVoltage-dependent inactivationLong QT syndromeWindow currentTimothy syndromeCav1.2 L-type Ca2Multiple dental cariesLower extremity weaknessGain of functionCertain clinical settingsEpisodes of rhabdomyolysisUnexplained infant deathL-type Ca2Channel window currentAge 5 yearsYears of ageAppreciation of mechanismsMonths of ageCandidate gene sequencingCardiac ion channelsRecurrent VTExtremity weaknessSpastic diplegiaExtracardiac featuresDental caries