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D-threo-aldose 1-dehydrogenase

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D-threo-aldose 1-dehydrogenase
Identifiers
EC no.1.1.1.122
CAS no.9082-70-6
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In enzymology, a D-threo-aldose 1-dehydrogenase (EC 1.1.1.122) is an enzyme that catalyzes the chemical reaction

a D-threo-aldose + NAD {\displaystyle \rightleftharpoons } a D-threo-aldono-1,5-lactone + NADH + H

Thus, the two substrates of this enzyme are D-threo-aldose and NAD, whereas its 3 products are D-threo-aldono-1,5-lactone, NADH, and H.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD or NADP as acceptor. The systematic name of this enzyme class is D-threo-aldose:NAD 1-oxidoreductase. Other names in common use include L-fucose dehydrogenase, (2S,3R)-aldose dehydrogenase, dehydrogenase, L-fucose, and L-fucose (D-arabinose) dehydrogenase. This enzyme participates in ascorbate and aldarate metabolism.

References

  • Sasajima KI, Sinskey AJ (1979). "Oxidation of L-glucose by a Pseudomonad". Biochim. Biophys. Acta. 571 (1): 120–6. doi:10.1016/0005-2744(79)90232-8. PMID 40609.
  • Schachter H, Sarney J, McGuire EJ, Roseman S (1969). "Isolation of diphosphopyridine nucleotide-dependent L-fucose dehydrogenase from pork liver". J. Biol. Chem. 244 (17): 4785–92. PMID 4309152.
Oxidoreductases: alcohol oxidoreductases (EC 1.1)
1.1.1: NAD/NADP acceptor
1.1.2: cytochrome acceptor
1.1.3: oxygen acceptor
1.1.4: disulfide as acceptor
1.1.5: quinone/similar acceptor
1.1.99: other acceptors
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