diaphorase

diaphorase
Originally, a series of flavoproteins with reductase activity in mitochondria; now dihydrolipoamide dehydrogenase.

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di·aph·o·rase dī-'af-ə-.rās, -.rāz n a flavoprotein enzyme capable of oxidizing the reduced form of NAD

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di·aph·o·rase (di-afґo-rās) any flavoprotein catalyzing the oxidation of reduced nicotinamide adenine dinucleotide (NAD) or reduced nicotinamide adenine dinucleotide phosphate (NADP) using a nonphysiological compound such as methylene blue as electron acceptor, but not oxygen or cytochromes. The reaction is an artifact arising from removal of the enzyme from the complexes in which it occurs naturally.

Medical dictionary. 2011.

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  • diaphorase — /duy af euh rays /, n. Biochem. a flavoprotein, found in mitochondria, that acts as an enzyme in catalyzing the oxidation of reduced NAD. [ < G Diaphorase (1938) < Gk diáphor(os) different, unlike (see DIA , PHORE) + G ase ASE] * * * …   Universalium

  • diaphorase — noun Etymology: International Scientific Vocabulary diaphor (from Greek diaphoros different, from diapherein to differ, from dia + pherein to carry) + ase more at bear Date: 1938 a flavoprotein enzyme capable of oxidizing the reduced form of NAD …   New Collegiate Dictionary

  • diaphorase — Any enzyme capable of catalysing oxidation of NAD or NADPH in the presence of an electron acceptor other than oxygen for example methylene blue, quinones or cytochromes. Imprecise term …   Dictionary of molecular biology

  • diaphorase — noun Any of a group of flavoprotein enzymes that catalyze the reduction of cytochrome and other similar compounds …   Wiktionary

  • Diaphorase — Dia|phora̱se [zu gr. διαϕορος = verschieden u. ↑...ase] w; , n (meist Mehrz.): Enzyme, die an der Übertragung von Wasserstoff auf Wasserstoffakzeptoren beteiligt sind …   Das Wörterbuch medizinischer Fachausdrücke

  • Diaphorase — Di|a|pho|ra|se die; , n (meist Plur.) <zu gr. diáphoros »verschieden« u. ↑...ase> ↑Enzym, das an der Übertragung von Wasserstoff auf Wasserstoffakzeptoren (vgl. ↑Akzeptor, 1) beteiligt ist (Biochem.) …   Das große Fremdwörterbuch

  • diaphorase — di·aph·o·rase …   English syllables

  • diaphorase — dīˈafəˌrās, āz noun ( s) Etymology: Greek diaphoros different + English ase : a flavoprotein enzyme capable of oxidizing the reduced form of diphosphopyridine nucleotide or of triphosphopyridine nucleotide at the expense of some nonphysiological… …   Useful english dictionary

  • DT-diaphorase — SYN: NADPH dehydrogenase (quinone) …   Medical dictionary

  • NADPH dehydrogenase — Identifiers EC number 1.6.99.1 CAS number 9001 68 7 …   Wikipedia

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