The majority of these truncating variants were found in key genes associated with DCM (e.g. TTN and RBM20), HCM (e.g. ALPK3, MYH6 and MYBPC3), and ARVC (e.g. PKP2, DSP and DSG2). This evidence concerns the gene MYH6 and arrhythmogenic right ventricular cardiomyopathy.