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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.
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. [1] [2] [3]
The glucose-methanol-choline (GMC) oxidoreductases are FAD flavoproteins oxidoreductases. [1] [2] These enzymes include a variety of proteins; choline dehydrogenase (CHD) EC 1.1.99.1, methanol oxidase (MOX) EC 1.1.3.13 and cellobiose dehydrogenase EC 1.1.99.18 [3] which share a number of regions of sequence similarities.
In biochemistry, an oxidoreductase is an enzyme that catalyzes the transfer of electrons from one molecule, the reductant, also called the electron donor, to another, the oxidant, also called the electron acceptor.
In enzymology, a glucose 1-dehydrogenase (FAD, quinone) (EC 1.1.5.9) is an enzyme that catalyzes the chemical reaction. D-glucose + a quinone D-glucono-1,5-lactone + a quinol. Thus, the two substrates of this enzyme are D-glucose and a quinone, whereas its two products are D-glucono-1,5-lactone and a quinol.
An important example is EC 7.1.1.9 cytochrome c oxidase, the key enzyme that allows the body to employ oxygen in the generation of energy and the final component of the electron transfer chain. Other examples are: EC 1.1.3.4 Glucose oxidase; EC 1.4.3.4 Monoamine oxidase; EC 1.14.-.- Cytochrome P450 oxidase; EC 1.6.3.1 NADPH oxidase
In enzymology, a glucose-fructose oxidoreductase (EC 1.1.99.28) is an enzyme that catalyzes the chemical reaction. D-glucose + D-fructose D-gluconolactone + D-glucitol. Thus, the two substrates of this enzyme are D-glucose and D-fructose, whereas its two products are D-gluconolactone and D-glucitol.
2-deoxy-D-gluconate 3-dehydrogenase (EC 1.1.1.125) is an enzyme that catalyzes the chemical reaction. 2-deoxy-D-gluconate + NAD + 3-dehydro-2-deoxy-D-gluconate + NADH + H +. Thus, the two substrates of this enzyme are 2-deoxy-D-gluconate and NAD +, whereas its 3 products are 3-dehydro-2-deoxy-D-gluconate, NADH, and H +.
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