EC 3.2.1.73 CAZY Family: GH16 From B. subtilis. Electrophoretically homogeneous. In 3.2 M ammonium sulphate. Specific activity: 336 U/mg (40°C, pH 6.5, barley ?-glucan). 1000 U/ml. Contaminants: α-amylase < 0.0001%. Stable at 4°C for > 4 years.