What does flavin adenine dinucleotide mean?
Definitions for flavin adenine dinucleotide
flavin ade·nine din·u·cleotide
This dictionary definitions page includes all the possible meanings, example usage and translations of the word flavin adenine dinucleotide.
Wikipedia
Flavin adenine dinucleotide
In biochemistry, flavin adenine dinucleotide (FAD) is a redox-active coenzyme associated with various proteins, which is involved with several enzymatic reactions in metabolism. A flavoprotein is a protein that contains a flavin group, which may be in the form of FAD or flavin mononucleotide (FMN). Many flavoproteins are known: components of the succinate dehydrogenase complex, α-ketoglutarate dehydrogenase, and a component of the pyruvate dehydrogenase complex. FAD can exist in four redox states, which are the flavin-N(5)-oxide, quinone, semiquinone, and hydroquinone. FAD is converted between these states by accepting or donating electrons. FAD, in its fully oxidized form, or quinone form, accepts two electrons and two protons to become FADH2 (hydroquinone form). The semiquinone (FADH·) can be formed by either reduction of FAD or oxidation of FADH2 by accepting or donating one electron and one proton, respectively. Some proteins, however, generate and maintain a superoxidized form of the flavin cofactor, the flavin-N(5)-oxide.
Wikidata
Flavin adenine dinucleotide
In biochemistry, flavin adenine dinucleotide is a redox cofactor involved in several important reactions in metabolism. FAD can exist in two different redox states, which it converts between by accepting or donating electrons. The molecule consists of a riboflavin moiety bound to the phosphate group of an ADP molecule. The flavin group is bound to ribitol, a sugar alcohol, by a carbon-nitrogen bond, not a glycosidic bond. Thus, riboflavin is not technically a nucleotide; the name flavin adenine dinucleotide is a misnomer. FAD can be reduced to FADH2, whereby it accepts two hydrogen atoms: FAD accepts two electrons and two protons to become FADH2. FADH2 can then be oxidized to the semireduced form FADH by donating one electron and one proton. The semiquinone is then oxidized once more by losing an electron and a proton and is returned to the initial quinone form. FAD is an aromatic ring system, whereas FADH2 is not. This means that FADH2 is significantly higher in energy, without the stabilization that aromatic structure provides. FADH2 is an energy-carrying molecule, because, if it is oxidized, it will regain aromaticity and release all the energy represented by this stabilization.
Numerology
Chaldean Numerology
The numerical value of flavin adenine dinucleotide in Chaldean Numerology is: 8
Pythagorean Numerology
The numerical value of flavin adenine dinucleotide in Pythagorean Numerology is: 3
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"flavin adenine dinucleotide." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/flavin+adenine+dinucleotide>.
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