Une réductase est une enzyme qui diminue l'énergie d'activation d'une réaction d'oxydo-réduction.


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  • Reductase — Réductase Une réductase est une enzyme qui diminue l énergie d activation d une réaction d oxydo réduction. Exemples 5 alpha réductase, enzyme du métabolisme de la testostérone, cytochrome b5 réductase Folate et Dihydrofolate réductase HMG CoA… …   Wikipédia en Français

  • réductase — [ redyktaz ] n. f. • 1902; de réduct(ion) et ase ♦ Biochim. Enzyme qui active un processus organique d oxydoréduction. réductase [ʀedyktɑz] n. f. ÉTYM. 1902; du rad. de réducteur, réduction, et suff. ase. ❖ ♦ Biochim. E …   Encyclopédie Universelle

  • reductase — [ri duk′tās΄, ri duk′tāz΄] n. [ REDUCT(ION) + ASE] any of a class of enzymes that catalyze biochemical reductions …   English World dictionary

  • Reductase — A reductase is an enzyme which lowers the activation energy for a reduction reaction. [eMedicineDictionary|Reductase] [Dorlands|r 06|12697833] Examples* 5 alpha reductase * Dihydrofolate reductase * HMG CoA reductase * Methemoglobin reductase *… …   Wikipedia

  • reductase — noun an enzyme that catalyses the biochemical reduction of some specified substance • Hypernyms: ↑enzyme • Hyponyms: ↑HMG CoA reductase, ↑5 hydroxy 3 methylglutaryl coenzyme A reductase …   Useful english dictionary

  • reductase — noun An enzyme that chemically reduces its substrate. disulfide reduction by glutathione is a three step process, the last of which is catalyzed by glutathione reductase …   Wiktionary

  • reductase — noun Date: 1902 an enzyme that catalyzes reduction …   New Collegiate Dictionary

  • reductase — /ri duk tays, tayz/, n. Biochem. any enzyme acting as a reducing agent. [1900 05; REDUCT(ION) + ASE] * * * …   Universalium

  • reductase — An enzyme that catalyzes a reduction; since all enzymes catalyze reactions in either direction, any r. can, under the proper conditions, behave as an oxidase and vice versa, hence the term oxidoreductase. For individual reductases, see the… …   Medical dictionary

  • reductase — n. enzyme that catalyzes reduction …   English contemporary dictionary

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