(redirected from Flavoproteins)
Also found in: Medical, Encyclopedia.


 (flā′vō-prō′tēn′, -tē-ĭn)
Any of a group of enzymes containing flavin bound to protein and acting as dehydrogenation catalysts in biological reactions.


(Biochemistry) any of a group of enzymes that contain a derivative of riboflavin linked to a protein and catalyse oxidation in cells. Also called: cytochrome reductase See also FMN, FAD
[C20: from flavin + protein]


(ˌfleɪ voʊˈproʊ tin, -ti ən)

any of a class of flavin-linked yellow enzymes that participate in cell respiration.
References in periodicals archive ?
A third group is the L-aspartate oxidases, which are flavoproteins using L-aspartate as a substrate.
Previous studies indicate that a reduction potential between -0.1V and -0.5V versus NHE in water at pH 7 is required for successful redox cycling by common flavoproteins in vivo [36].
However, a key limitation for TPM-based deep tissue imaging is the autofluorescence interference from intrinsic biomolecules in the tissue such as nicotinamide adenine dinucleotide (NADH) and its phosphate analogue (NADPH), riboflavin, and flavoproteins [22].
FAD is used as a cofactor for most flavoproteins. Riboflavin deficiency would be expected cause disturbances in certain steps of metabolism.
This infant has an autosomal recessive disorder described as multiple acyl-CoA dehydrogenase deficiency (MADD).3 The underlying defect is a deficiency of 2 flavoproteins: electron transfer flavoprotein (ETF) or ETF dehydrogenase (ETF-QO).
The reduced catalase activity says of a decreasing respond that prevents accumulation of hydrogen peroxide derived from dismutation of superoxide anion and aerobic oxidation of rehabilitated flavoproteins. MMP accumulation assumes that the lipid peroxidation process assumes the ascorbate-dependent way.
In addition, CYP2E1, the downstream proteins of [beta]-catenin (CTNNB1) pathway, ubiquinol-cytochrome c reductase, Rieske iron-sulfur polypeptide 1 (UQCRFS1), and electron transfer flavoproteins [alpha] and [beta], involved in MTOR and RICTOR pathways were elevated only in HCCs of the [Ogg1.sup.-/-] PB group.
This is made possible by the rapid reduction of nitrofurantoin inside the bacterial cell by flavoproteins (Nitrofuran reductase) to multiple reactive intermediates that attack ribosomal proteins, DNA, enzymes involved in respiration and pyruvate metabolism within the cell.
The only justification may be the involvement of iron as a component of various flavoproteins (Metalloflavoproteins) active in biological oxidation (Devlin and Witham, 1983), which may increase as result of inoculation with the pathogen/ULCV (Ashfaq et al., 2010).
Vitamin B-2 is known to be the central component of the cofactor's flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN), which is necessary to all flavoproteins [1].
These motifs appear in several families of the flavoproteins [1, 8].