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Name D-Glucose:(pyrroloqinoline-quinone)+1-oxydoreductase
Appearance Purple amorphous powder lyophilized
Activity Grade III, 500U/mg-solid or more
Contaminants Glucose dehydrogenase ≤ 1.0×10-3 % (NAD-dependent)
Hexokinase ≤ 1.0×10-3 %
Stability Store at - 20°C
Stabilizers Ca2+, BSA
Molecular weight approx. 100,000 (by gel filtration)
Michaelis constant 4.8 mM (D-Glucose)
Inhibitors Cu2+ ,Pb2+, Ag+
Optimum pH 7.0
Optimum temperature 37°C
pH Stability pH 3.5 - 8.5 (25°C, 16hr)
Temperature stability below 50°C (pH 7.5, 30min)
EC # 1.1.5.2