Western Blot. Positive WB detected in: A549 whole cell lysate, MCF-7 whole cell lysate, PC-3 whole cell lysate, Rat brain tissue, Mouse brain tissue. All lanes: PRKACB antibody at 3ug/ml. Secondary. Goat polyclonal to rabbit IgG at 1/50000 dilution. Predicted band size: 41, 47, 40, 42, 30, 37 kDa. Observed band size: 41, 47 kDa.