= Flavin adenine dinucleotide
{tag=Coenzyme}
= FAD
{c}
{synonym}
<Flavin adenine dinucleotide> is a redox <coenzyme> with a flavin ring system linked to an adenine-containing nucleotide unit. Reduction of the flavin gives <FADH2>.
In <succinate dehydrogenase>, an enzyme-bound flavin accepts reducing equivalents during conversion of <succinate> to <fumarate>. The flavin is reoxidized through the respiratory electron-transfer machinery, connecting a carbon-metabolism reaction with the <mitochondrial respiratory chain>.
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