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flavin
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Flavins are organic compounds derived from riboflavin that contain the isoalloxazine ring and can undergo redox reactions. They are involved in various enzymes and light-sensitive proteins, and have different forms such as FAD, FMN and FADH2.
flavin, any of a group of pale-yellow, greenly fluorescent biological pigments (biochromes) widely distributed in small quantities in plant and animal tissues. Flavins are synthesized only by bacteria, yeasts, and green plants; for this reason, animals are dependent on plant sources for them, including riboflavin (vitamin B 2), the most prevalent member of the group.
The meaning of FLAVIN is any of a class of yellow water-soluble nitrogenous pigments derived from isoalloxazine and occurring in the form of nucleotides as coenzymes of flavoproteins; especially : riboflavin.
Flavin is a redox-active cofactor that plays a role in many biological processes, such as electron transfer, oxygen activation, and signal transduction. Learn about the structure, properties, and functions of flavin and its derivatives, such as FMN and FAD, from various chapters and articles on ScienceDirect.
Flavins are a family of yellow-colored compounds with the basic structure of 7,8-dimethyl-10-alkylisoalloxazine. Riboflavin, commonly known as vitamin B2, is an essential component of living organisms and is the precursor of all biologically important flavins. In...
flavin adenine dinucleotide (FAD) a coenzyme that is a condensation product of riboflavin phosphate and adenylic acid; it forms the prosthetic group (non-amino acid component) of certain enzymes, including d -amino acid oxidase and xanthine oxidase, and is important in electron transport in mitochondria.
The biochemical source of flavin is the yellow B vitamin riboflavin. The flavin moiety is often attached with an adenosine diphosphate to form flavin adenine dinucleotide (FAD), and, in other circumstances, is found as flavin mononucleotide (or FMN), a phosphorylated form of riboflavin.
3 meanings: 1. a heterocyclic ketone that forms the nucleus of certain natural yellow pigments, such as riboflavin. Formula:.... Click for more definitions.
Flavin mononucleotide (FMN) is a biomolecule derived from vitamin B2 that functions as a cofactor in oxidoreductases and photo receptors. It is also used as a food colour additive and has a role in cellular metabolism and brain injury.
In addition to natural flavin derivatives, many artificial analogues have been recently used to design and tune flavin-based systems. This introductory chapter aims to introduce most members of the flavin family and their properties, with a special focus on their redox and acid-base behavior, reactivity toward nucleophiles and electrophiles ...