Western Blot. Positive WB detected in: Rat heart tissue, Rat skeletal muscle, Mouse kidney tissue. All lanes: ATP6V1C2 antibody at 3.4ug/ml. Secondary. Goat polyclonal to rabbit IgG at 1/50000 dilution. Predicted band size: 49, 44 kDa. Observed band size: 49 kDa.