Oxidoreductases

**Definition:** The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9)

**Tree numbers:** - D08.811.682

**Synonyms:** - Oxidoreductase - Dehydrogenase - Dehydrogenases - Reductase - Reductases