Indeed, the transgene was sufficient to attenuate cardiomyopathy phenotypes in the rragc KI model, as indicated by restoration of EF, FS, and vmhc expression in rragc KI;Tg(tfeb) fish compared to age matched rragc KI alone at 7 months (Figure 7D,E). This evidence concerns the gene RRAGC and cardiomyopathy.