Originally, a series of flavoproteins with reductase activity in mitochondria; now dihydrolipoamide dehydrogenase. ... (05 Mar 2000) ... 
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.
Type: Term Pronunciation: dī-af′ō-rās Definitions: 1. Originally, a series of flavoproteins with reductase activity in mitochondria; now dihydrolipoamide dehydrogenase.
a flavoprotein, found in mitochondria, that acts as an enzyme in catalyzing the oxidation of reduced NAD.