flavin adenine dinucleotide

biochemistry

Also known as: FAD, flavine adenine dinucleotide

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June 26, 2026

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Flavin adenine dinucleotide (FAD) is a coenzyme found in some flavoproteins. It is a molecule with the chemical formula C₂₇H₃₃N₉O₁₅P₂. FAD plays a role in cellular energy metabolism, particularly in the oxidation of fatty acids within mitochondria. During this process, FAD is reduced to FADH₂, which then participates in the generation of ATP, the energy currency of living systems. FAD is also involved in the synthesis of fatty acids, where it is used in conjunction with other molecules to build these essential components of lipids.123

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plant
Principal pathways and cycles
…in one reaction, the coenzyme flavin adenine dinucleotide (FAD) to form NADH and FADH, respectively. The reduced coenzymes NADH and FADH enter into a sequence of reactions called the respiratory chain on the inner membrane of the mitochondrion. This chain is a series of carriers (ubiquinone and several iron-containing chemicals…
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…in one reaction, the coenzyme flavin adenine dinucleotide (FAD) to form NADH and FADH, respectively. The reduced coenzymes NADH and FADH enter into a sequence of reactions called the respiratory chain on the inner membrane of the mitochondrion. This chain is a series of carriers (ubiquinone and several iron-containing chemicals…
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Arthur Kornberg
…result in the construction of flavine adenine dinucleotide (FAD) and diphosphopyridine nucleotide (DPN), coenzymes that are important hydrogen-carrying intermediaries in biological oxidations and reductions.
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…result in the construction of flavine adenine dinucleotide (FAD) and diphosphopyridine nucleotide (DPN), coenzymes that are important hydrogen-carrying intermediaries in biological oxidations and reductions.
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