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In enzymology, an FMN reductase (EC 1.5.1.29) is an enzyme that catalyzes the chemical reaction FMNH 2 + 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 + .
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 +
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NADP(H) and NAD(H) are equal and opposite contributors to metabolism, and this enzyme is necessary to keep a balance between the two. It can also function to generate a proton gradient across a membrane, as it is a reversible reaction, and is used as such in certain organisms.
NADP is a reducing agent in anabolic reactions like the Calvin cycle and lipid and nucleic acid syntheses. NADP exists in two forms: NADP+, the oxidized form, and NADPH, the reduced form. NADP is similar to nicotinamide adenine dinucleotide (NAD), but NADP has a phosphate group at the C-2′ position of the adenosyl
In enzymology, a NADPH—hemoprotein reductase is an enzyme that catalyzes the chemical reaction. NADPH + H + + n oxidized hemoprotein NADP + + n reduced hemoprotein. The three substrates of this enzyme are NADPH, H +, and oxidized hemoprotein, whereas its two products are NADP + and reduced hemoprotein.
Nicotinamide adenine dinucleotide phosphate, abbreviated NADP [1] [2] or, in older notation, TPN (triphosphopyridine nucleotide), is a cofactor used in anabolic reactions, such as the Calvin cycle and lipid and nucleic acid syntheses, which require NADPH as a reducing agent ('hydrogen source'). NADPH is the reduced form, whereas NADP + is the ...
Mechanisms 3 and 4 radical formation and hydride loss. Radical species contain unpaired electron atoms and are very chemically active. Hydride loss is the inverse process of the hydride gain seen before. The final two mechanisms show nucleophilic addition and a reaction using a carbon radical.