General description
Mass of glucose oxidase (GOX), a flavoprotein ranges from approximately 130 to 175 kDa. Some fungi and insects are capable of producing GOX.
Molecular Weight: 160 kDa (gel filtration)
pI: 4.2
Extinction coefficient: E1% = 16.7 (280 nm)
Glucose oxidase from Aspergillus niger is a dimer consisting of 2 equal subunits with a molecular mass of 80 kDa each. Each subunit contains one flavin adenine dinulceotide moiety and one iron. The enzyme is a glycoprotein containing ~16% neutral sugar and 2% amino sugars. The enzyme also contains 3 cysteine residues and 8 potential sites for N-linked glycosylation.
Glucose oxidase is capable of oxidizing
The pH optimum for glucose oxidase is 5.5, while it has a broad activity range of pH 4-7. Glucose oxidase is specific for β-
Glucose oxidase does not require any activators, but it is inhibited by Ag+, Hg2+, Cu2+, phenylmercuric acetate, and p-chloromercuribenzoate. It is not inhibited by the nonmetallic SH reagents: N-ethylmaleimide, iodoacetate, and iodoacetamide.
Glucose oxidase can be utilized in the enzymatic determination of
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and waste prevention when used in fuel cell research. For more information see the article in biofiles.
Application
Glucose Oxidase from Aspergillus niger has been used:
- in the (glucose oxidase) GO reagent to measure the glucose content by the glucose oxidase (GO) method
- to activate the human renal carcinoma cell line for constructing the oxidative stress model
- to study its influence in the paste on the analytical performance of the bioelectrode
Glucose oxidase is widely used in the food and pharmaceutical industries as well as a major component of glucose biosensors.
Biochem/physiol Actions
Glucose oxidase (GOX) oxidizes D-glucose to D-gluconolactone and hydrogen peroxide. Hydrogen peroxide, the catalytic product of GOX, serves as an anti-bacterial and anti-fungal agent. It is safe and can be used in several industrial applications like baking, dry egg powder production, wine production, gluconic acid production, etc. It possesses electrochemical activity, which makes it extremely important in glucose sensors and in fuel cell applications.
Glucose oxidase catalyses the oxidation of β-d-glucose to d-glucono-β-lactone and hydrogen peroxide, with molecular oxygen as an electron acceptor.
Quality
May contain traces of amylase, maltase, glycogenase, invertase, and galactose oxidase.
Unit Definition
One unit will oxidize 1.0 μmole of β-
Analysis Note
Protein determined by biuret
- UPC:
- 41202004
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- G7141-1MU