Cardiomyopathy, Dilated, 1b, also known as cardiomyopathy, familial dilated, 1, is related to cardiomyopathy, dilated, 1a and muscular dystrophy, congenital merosin-deficient, 1a. An important gene associated with Cardiomyopathy, Dilated, 1b is BAG3 (BAG Cochaperone 3), and among its related pathways/superpathways are Cardiac conduction and Cytoskeletal Signaling. Affiliated tissues include heart, and related phenotypes are congestive heart failure and dilated cardiomyopathy