EC 6.2.1.5 Recombinant from a prokaryote. In 3.2 M ammonium sulphate. Specific activity: 15.8 U/mg (25oC, pH 8.4). Contaminants: ATPase = 0.0017 %, NADH oxidase = 0.00034 %. Stable at 4oC for > 2 years.
