Glucose oxidase
| Glucose oxidase | |||||||||
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Structure of glucose oxidase dimer (dark and light blue) complexed with FAD (salmon) and glycans (aquamarine) from Penicillium amagasakiense. | |||||||||
| Identifiers | |||||||||
| EC no. | 1.1.3.4 | ||||||||
| CAS no. | 9001-37-0 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
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| Names | |
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| Other names
Oxidase, glucose
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| Identifiers | |
| ChemSpider |
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| ECHA InfoCard | 100.029.625 |
| EC Number |
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| E number | E1102 (additional chemicals) |
| KEGG | |
| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| (C6H10O5)n | |
| Molar mass | variable |
| Appearance | white or yellow powder |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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The glucose oxidase enzyme (GOx or GOD) also known as notatin (EC number 1.1.3.4) is an oxidoreductase that catalyses the oxidation of glucose to hydrogen peroxide and D-glucono-δ-lactone. This enzyme is produced by certain species of fungi and insects and displays antibacterial activity when oxygen and glucose are present.
Glucose oxidase is widely used for the determination of free glucose in body fluids (medical testing), in vegetal raw material, and in the food industry. It also has many applications in biotechnologies, typically enzyme assays for biochemistry including biosensors in nanotechnologies.
It was first isolated by Detlev Müller in 1928 during his work with the common fungus Aspergillus niger. Müller noted that this fungus prevented some bacteria colonies from growing. He eventually found that these bacteria could only thrive adjacent to Aspergillus niger if glucose was not present. He eventually isolated the factor that caused the curious effect. The factor was glucose oxidase. In the presence of glucose, the glucose oxidase produced hydrogen peroxide, which killed off the bacteria. He discovered the enzyme’s selectivity for glucose in 1929 and published it in the journal Biochem. Z. .