Disease_Mapped_To_Gene Long QT Syndrome 8 C142894 LQT8 Disease or Syndrome Long QT Syndrome 8 Timothy Syndrome An autosomal dominant condition caused by mutation(s) in the CACNA1C gene, encoding voltage-dependent L-type calcium channel subunit alpha-1C. It is characterized by a prolonged QT interval that may result in torsade de pointes, ventricular fibrillation and/or sudden cardiac death. C1832916 Long QT Syndrome 8 Cellosaurus Cellosaurus Disease Terminology CACNA1C Gene Long QT Syndrome