MYOM2 and dilated cardiomyopathy: Myom2 codes for myomesin, the major component of myofibrillar M bands in vertebrates; human MYOM2 mutations are associated with hypertrophic cardiomyopathy [27], while overexpression of EH-myomesin, the predominant MYOM2 isoform in the embryonic heart, has been suggested as a biomarker of dilated cardiomyopathy [28].