Immunoblotting was conducted as described previously [27 (link), 32 (link)]. The membranes were probed with primary antibodies against adipoR1 (rabbit, 1:1000, Abcam), adipoR2 (rabbit, 1:1000, Abcam), RACK1 (rabbit, 1:1000, Abcam), PKCK2α (rabbit, 1:1000, Cell Signaling Technology), CaMKII (rabbit, 1:1000, Abcam), phospho-CaMKII (mouse, 1:800, Abcam), PKCβ1 (mouse, 1:1000, ThermoFisher Scientific), Cav3.2 (rabbit, 1:800, Alomone) and GAPDH (rabbit, 1:3000, Cell Signaling Technology). Blots were washed and subsequently probed with horseradish peroxidase (HRP)-conjugated goat anti-rabbit or goat anti-mouse IgG secondary antibody (1:5000, Abcam). The immunocomplexes were detected with enhanced chemiluminescence (Merck Millipore). The Chin-X Imager System (Shanghai, China) was used to detect the bands, and NIH ImageJ software was used to quantify the protein band intensities.
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