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FMN reductase (NAD(P)H) (EC 1.5.1.39, FRG) is an enzyme with systematic name FMNH 2:NAD(P) + oxidoreductase. [1] This enzyme catalyses the following chemical reaction FMNH2 + NAD(P) + ⇌ {\displaystyle \rightleftharpoons } FMN + NAD(P)H + H +
The 3 substrates of this enzyme are FMNH2, NAD +, and NADP +, whereas its 4 products are FMN, NADH, NADPH, and H +. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is FMNH2:NAD(P)+ oxidoreductase.
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Flavin mononucleotide (FMN), or riboflavin-5′-phosphate, is a biomolecule produced from riboflavin (vitamin B 2) by the enzyme riboflavin kinase and functions as the prosthetic group of various oxidoreductases, including NADH dehydrogenase, as well as a cofactor in biological blue-light photo receptors. [1]
NAD + to NADH. FMN to FMNH 2. CoQ to CoQH 2.. Complex I is the first enzyme of the mitochondrial electron transport chain.There are three energy-transducing enzymes in the electron transport chain - NADH:ubiquinone oxidoreductase (complex I), Coenzyme Q – cytochrome c reductase (complex III), and cytochrome c oxidase (complex IV). [1]
The main factor affecting the formal (or apparent) reduction potentials ′ in biochemical or biological processes is the pH. To determine approximate values of formal reduction potentials, neglecting in a first approach changes in activity coefficients due to ionic strength, the Nernst equation has to be applied taking care to first express ...
The conservation of the energy can be calculated by the following formula Efficiency = (21.9 x 100%) / 52 = 42% So we can conclude that when NADH is oxidized, about 42% of energy is conserved in the form of three ATPs and the remaining (58%) energy is lost as heat (unless the chemical energy of ATP under physiological conditions was ...
Glutamate synthase catalyzes the conversion of 2-oxoglutarate into L-glutamate with L-glutamine serving as the nitrogen source for the reaction. All glutamate syntheses are iron-sulfur flavoproteins containing an iron-sulfur cluster and FMN. The three classes of glutamate syntheses are categorized based on their sequences and biochemical ...