For example, dilated cardiomyopathy (DCM), which is defined by systolic dysfunction and dilation of one or both ventricles, can be caused in humans by mutations in the genes encoding cardiac phospholamban (PLN), delta-sarcoglycan (SGCD), and RNA-binding protein 20 (RBM20) [49, 50]. The gene discussed is SGCD; the disease is familial dilated cardiomyopathy.