Western Blot. Positive WB detected in: SH-SY5Y whole cell lysate, Mouse heart tissue. All lanes: MAPT antibody at 3.25ug/ml. Secondary. Goat polyclonal to rabbit IgG at 1/50000 dilution. Predicted band size: 79, 37, 33, 40, 43, 41, 46, 81 kDa. Observed band size: 79, 50, 36 kDa.