Genes initially attributed to other types of cardiomyopathy, such as MYBPC3 for hypertrophic cardiomyopathy (HCM) and DSP for arrhythmogenic right ventricular cardiomyopathy (ARVC), have been shown to contribute to DCM as well [19, 36, 37•]. The gene discussed is MYBPC3; the disease is arrhythmogenic right ventricular cardiomyopathy.