Western Blot of Alkaline Phosphatase Conjugated Goat anti-Rat IgG antibody. Lane 1: Rat IgG. Lane 2: none. Load: 50 ng per lane. Primary antibody: none. Secondary antibody: Alkaline Phosphatase rat secondary antibody at 1:1,000 for 60 min at RT. Block: MB-070 for 30 min RT. Predicted/Observed size: 55 kDa, 28 kDa for Rat IgG. Other band(s): none.