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规格
Appearance | yellow lyophilizate |
Activity | ≧700 U/mg |
Contaminants | NAD glucose dehydrogenase ≺1.0×10-2 U/U% |
Hexokinase ≺1.0×10-2 U/U% | |
α-glucosidase ≺1.0×10-2 U/U% | |
β-glucosidase ≺1.0×10-2 U/U% | |
Filterability | ≧90% |
Storage condition | below -20℃ protected from light |
特性
Molecular weight | ca. 85 kDa (SDS-PAGE) |
Structure | monomer, one mole of FAD per mole of enzyme glycoprotein |
Michaelis constant | 2.2×10-2M (D-glucose) |
pH Optimum | 7.0–7.5 |
pH Stability | 4.5–8.0 |
Optimum temperature | 40–50℃ |
Thermal stability | below 45℃ |
Specificity | D-glucose (100), maltose (≺0.01), |
D-xylose (8.7), D-galactose (0.7) , | |
sucrose (0.1) ,D-mannnose (3.9), 2-deoxy-d-glucose (52.2) |
应用
The enzyme is useful for the determination of D-glucose in clinical analysis and self-monitoring blood glucose meters.
参考文献
Hatada M, Loew N, Inose-Takahashi Y, Okuda-Shimazaki J, Tsugawa W, Mulchandani A, Sode K (2018)
Development of a glucose sensor employing quick and easy modification method with mediator for altering electron acceptor preference.
Bioelectrochemistry, 121, 185-190
Okuda-Shimazaki, J, Yoshida H, Sode K (2020)
FAD dependent glucose dehydrogenases – Discovery and engineering of representative glucose sensing enzymes –
Bioelectrochemistry, 132, 107414