1. From Molecular Cardiology, Department of Internal Medicine III (J.H., C.G., I.S., A.M.Z., S.D.), and the Molecular Bioenergetics Group (S.D., U.B.), Centre of Biological Chemistry, University of Frankfurt; and IUF (J.H., N.B., S.J., J.A.), University of Düsseldorf gGmbH, Germany.