Hypertrophic and dilated cardiomyopathy causing mutations have been detected mostly in genes of sarcomere proteins such as Mybpc2, Myh7, Tnnt2, Tnnc1, Tnni3, Tpm1, Ttn, Actc1, Myl2, and Myl3 (van der Velden & Stienen, 2019). The gene discussed is MYL3; the disease is dilated cardiomyopathy.