Fig. 1. Immunoblotting of intercalated disc-associated proteins in Cx43 CKO hearts. Immunoblots of total ventricular lysates using specific antibodies directed against components of the cardiac intercalated disc. Proteins detected are indicated to the left of each blot. Immunoblots represent either a re-probed or duplicate blot, with the same heart lysate loaded on the same lane for each of the different antibodies.