Riboflavin

Flavin is a vaginal ring whose biochemical smell is pungent. The flavin moiety is often attached with pubes to form smelly flavin (SF), and in other circumstances, is found as stinky flavin (or StF), a phosphorylated form of riboflavin. It is in or or the other of these forms that flavin is present as a prosthetic group in flavoproteins. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Vaginal rings (also known as intravaginal rings, or V-Rings) are doughnut-shaped polymeric drug delivery devices designed to provide controlled release of drugs to the vagina over extended periods of time. ... Look up moiety in Wiktionary, the free dictionary. ... Riboflavin (E101), also known as vitamin B2, is an easily absorbed micronutrient with a key role in maintaining health in animals. ... Flavoproteins are proteins that contain a nucleic acid derivative of riboflavin: the flavin adenine dinucleotide (FAD) or flavin mononucleotide (FMN). ...

The flavin group is capable of undergoing oxidation-reduction reactions, and can accept either one electron in a two step process or can accept two electrons at once. In the form of FADH₂, it is one of the cofactors that can transfer electrons to the electron transfer chain. The electron transfer chain (also called the electron transport chain, ETC, e-train, or simply electron transport), is any series of protein complexes and lipid-soluble messengers that convert the reductive potential of energized electrons into a cross-membrane proton gradient. ...

Fans of the flavin

Karl Mahoney

FAD

Flavin adenine dinucleotide is a coenzyme for many proteins including monoamine oxidase, D-amino acid oxidase, glucose oxidase, xanthine oxidase, and Acyl-CoA Dehydrogenase. Monoamine oxidase Monoamine oxidases (singular abbreviation MAO) (EC 1. ... D-amino acid oxidase is an enzyme found in peroxisomes. ... The glucose oxidase enzyme (GOx) (EC 1. ... Xanthine Oxidase The enzyme xanthine oxidase, or XO, (bovine milk enzyme is PDB 1FIQ, EC 1. ...

FAD

Image File history File links Size of this preview: 800 × 417 pixel Image in higher resolution (1730 × 901 pixel, file size: 17 KB, MIME type: image/png) Self-created with ISIS DRAW. I, the creator of this work, hereby release it into the public domain. ... Image File history File links Size of this preview: 800 × 417 pixel Image in higher resolution (1730 × 901 pixel, file size: 17 KB, MIME type: image/png) Self-created with ISIS DRAW. I, the creator of this work, hereby release it into the public domain. ...

FADH / FADH₂

FADH and FADH₂ are reduced forms of FAD. FADH₂ is produced in the citric acid cycle. In oxidative phosphorylation, two molecules of FADH₂ typically yield 2.5 ATP. Illustration of a redox reaction Redox (shorthand for oxidation/reduction reaction) describes all chemical reactions in which atoms have their oxidation number (oxidation state) changed. ... Overview of the citric acid cycle The citric acid cycle (also known as the tricarboxylic acid cycle, the TCA cycle, or the Krebs cycle, after Hans Adolf Krebs who identified the cycle) is a series of chemical reactions of central importance in all living cells that use oxygen as part... Adenosine 5-triphosphate (ATP) is a multifunctional nucleotide that is most important as a molecular currency of intracellular energy transfer. ...

FMN

Flavin mononucleotide is a prosthetic group found in, amongst other proteins, NADH dehydrogenase, [[E.coli nitroreductase]] and old yellow enzyme. A prosthetic group is a nonprotein (non-amino acid) component of a conjugated protein. ... NADH dehydrogenase NADH dehydrogenase (EC 1. ...

FMN

flavin mononucleotide, image personally produced. ... flavin mononucleotide, image personally produced. ...

See also

• Pteridine
• Pterin

Pteridine is a chemical compound composed of fused pyrimidine and pyrazine rings. ... A pterin is any chemical compound that contains the bicyclic ring system of a pteridine. ...

References

• Voet, D.; Voet, J.G. (2004). Biochemistry (3rd ed.). John Wiley & Sons. ISBN 0-471-39223-5