Western blot. All lanes: Xaa-Pro aminopeptidase 1 antibody at 8ug/ml. Lane 1: Mouse small intestine tissue. Lane 2: Mouse stomach tissue. Lane 3: Mouse kidney tissue. Secondary. Goat polyclonal to rabbit IgG at 1/10000 dilution. Predicted band size: 70, 68, 75, 73 kDa. Observed band size: 70 kDa.