Fig. 3. Caveolin-3 and CaMKII bind to Kv4 channels but not to each other in rat cardiomyocytes. CaMKII (left) or Caveolin-3 (right) were immunoprecipitated in myocytic membranes and CaMKII, Cav-3, Kv4.2 and Kv4.3 immunodetected in the pellet and the supernatant. Each image shows 2 independent experiments, representative from 7 immunoprecipitations.