Search results
Results from the WOW.Com Content Network
Upon decomposition, they form products that are enzyme inhibitors. [9] UV absorption spectra of NAD + and NADH [image reference needed] Both NAD + and NADH strongly absorb ultraviolet light because of the adenine. For example, peak absorption of NAD + is at a wavelength of 259 nanometers (nm), with an extinction coefficient of 16,900 M −1 cm ...
NADH + H + + 2 monodehydroascorbate NAD + + 2 ascorbate The 3 substrates of this enzyme are NADH , H + , and monodehydroascorbate, whereas its two products are NAD + and ascorbate . This enzyme belongs to the family of oxidoreductases , specifically those acting on NADH or NADPH, with a quinone or similar compound as an acceptor.
NADPH is the reduced form, whereas NADP + is the oxidized form. NADP + is used by all forms of cellular life. NADP + is essential for life because it is needed for cellular respiration. [3] NADP + differs from NAD + by the presence of an additional phosphate group on the 2' position of the ribose ring that carries the adenine moiety.
The systematic name of this enzyme class is ATP:NADH 2'-phosphotransferase. Other names in common use include reduced nicotinamide adenine dinucleotide kinase (phosphorylating) , DPNH kinase , reduced diphosphopyridine nucleotide kinase , and NADH kinase .
The reducing agents NADH, NADPH, and FADH 2, [9] as well as metal ions, [4] act as cofactors at various steps in anabolic pathways. NADH, NADPH, and FADH 2 act as electron carriers , while charged metal ions within enzymes stabilize charged functional groups on substrates .
Thus, the two substrates of this enzyme are L-glutamate and NAD +, whereas its 4 products are L-glutamine, 2-oxoglutarate, NADH, and H +. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH 2 group of donors with NAD + or NADP + as acceptor. This enzyme participates in glutamate metabolism and nitrogen ...
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]
This category groups enzymes that use nicotinamide adenine dinucleotide (NAD + and its reduced form, NADH) in redox reactions. See also Category:NADPH-dependent enzymes.. In general, the NAD is not stably associated with the enzyme, being a coenzyme; hence, we call such enzymes "NADH-dependent" enzymes, rather than simply "NADH enzymes".