Column : Shodex AFpak ALC-894 (8.0mmID*50mm) Eluent : (A); 0.05M Tris-HCl(pH7.4) + 0.15M NaCl + 0.5mM CaCl2 + 0.5mM MnCl2 (B); (A) + 0.1M Methyl mannoside Step gradient: (A) to (B) Flow rate : 0.5mL/min Detector : UV(280nm) Column temp. : Room temp.