Oxidoreductase

Oxidoreductase is a class of enzymes that play an important role in redox reactions occurring in the human body. This class of enzymes is also known as dehydrogenases or oxidases.

Enzymes of this class catalyze reactions that result in the transfer of electrons from one molecular component to another. Oxidoreductases are involved in many biological processes such as respiration, photosynthesis, alcohol metabolism and many others.

Oxidoreductases consist of two functional domains: the active site and a covalently bound cofactor. The active site is the region of the enzyme in which catalysis of the reaction occurs, and the cofactor is an element necessary for the functioning of the enzyme that can temporarily bind to the active site and help it perform its functions.

Cofactors of oxidoreductases can be different. Some of them are saturated and unsaturated aldehydes and ketones, amino acids, vitamins and metals. Cofactors of oxidoreductases can greatly influence the reactions they catalyze, as well as the structure and functioning of the enzyme as a whole.

One example of an oxidoreductase is alcohol dehydrogenase, an enzyme that plays an important role in alcohol metabolism. This oxidoreductase catalyzes the oxidation of ethyl alcohol to acetaldehyde, which is then oxidized to acetic acid.

Another example of an oxidoreductase is cytochrome P450, an enzyme involved in the metabolism of many drugs. This oxidoreductase catalyzes the oxidation of drugs, which can lead to their detoxification or activation.

In conclusion, oxidoreductases are an important class of enzymes involved in redox reactions in the human body. These enzymes have a variety of cofactors and can catalyze a variety of reactions that play important roles in many biological processes.

Oxidoreductase is a class of enzymes that catalyze redox reactions in the human body. This class includes enzymes that were previously called dehydrogenases or oxidases.

Oxidoreductases catalyze electron transfer reactions between substrate and cofactor. As a result, the substrate is oxidized with the release of electrons and the cofactor is reduced with the addition of electrons. Such reactions are essential for metabolism because they allow us to extract energy from food and oxygen.

Oxidoreductases include such important enzymes as dehydrogenases (for example, lactate dehydrogenase), oxidases (for example, glucose oxidase), peroxidases, catalases and others. They participate in all types of metabolism - carbohydrate, lipid, protein, as well as interaction with oxygen. Disturbances in the functioning of oxidoreductases lead to severe metabolic diseases.