Immunoblotting of left ventricular lysates was performed as previously described.25 (link) Anti-SERCA (1:5000, A010–20, Badrilla), RyR2 (1:2500, ARR002, Alomone), PLB (1:5000, A010–14, Badrilla), PLB-Thr17 (1:5000, A010–13, Badrilla), PLB-Ser16 (1:5000, A010–12, Badrilla), and α-tubulin (1:1000, ab52866, Abcam) were used as primary antibodies. Anti-rabbit or anti-mouse 680nm or 800nm were used as secondary antibodies (IRDyes 680LT or 800CW, Licor Biosciences).