Mutations were not identified in the coding sequences of desmosomal genes (PKP2, DSG2, DSC2, DSP and JUP) in four ARVD/C cases, suggesting that the observed desmosomal cadherin decrease is an indicator of ARVD/C which is independent of the causative mutation. The gene discussed is CDH17; the disease is arrhythmogenic right ventricular cardiomyopathy.