Oxidase
Oxidase
Oxidase (pronunciation: /ˈɒksɪdeɪz/) is a type of enzyme that catalyzes the transfer of electrons from a substrate to an oxygen molecule, resulting in the formation of water or hydrogen peroxide.
Etymology
The term "oxidase" is derived from the word "oxidation", which refers to the process of losing electrons, and the suffix "-ase", which is used in biochemistry to denote enzymes.
Function
Oxidases play a crucial role in various biological processes, including cellular respiration, detoxification, and immune response. They are involved in the final steps of the electron transport chain, a series of reactions that generate energy in the form of adenosine triphosphate (ATP).
Types
There are several types of oxidases, each with a specific function. These include:
- Cytochrome c oxidase: This enzyme is involved in the electron transport chain in mitochondria.
- Glucose oxidase: This enzyme catalyzes the oxidation of glucose to hydrogen peroxide and D-glucono-δ-lactone.
- Monoamine oxidase: This enzyme catalyzes the oxidation of monoamines, which are important neurotransmitters.
Related Terms
- Reductase: An enzyme that catalyzes the reduction of a substrate by adding electrons.
- Catalase: An enzyme that catalyzes the decomposition of hydrogen peroxide into water and oxygen.
- Peroxidase: An enzyme that catalyzes the oxidation of a substrate by hydrogen peroxide.
External links
- Medical encyclopedia article on Oxidase
- Wikipedia's article - Oxidase
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