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In enzymology, a glyceraldehyde-3-phosphate dehydrogenase (ferredoxin) (EC 1.2.7.6) is an enzyme that catalyzes the chemical reaction

D-glyceraldehyde-3-phosphate + H₂O + 2 oxidized ferredoxin ${\displaystyle \rightleftharpoons }$ 3-phospho-D-glycerate + 2 H + 2 reduced ferredoxin

The 3 substrates of this enzyme are D-glyceraldehyde-3-phosphate, H₂O, and oxidized ferredoxin, whereas its 3 products are 3-phospho-D-glycerate, H, and reduced ferredoxin.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with an iron-sulfur protein as acceptor. The systematic name of this enzyme class is D-glyceraldehyde-3-phosphate:ferredoxin oxidoreductase. Other names in common use include GAPOR, glyceraldehyde-3-phosphate Fd oxidoreductase, and glyceraldehyde-3-phosphate ferredoxin reductase.

References

• Mukund S, Adams MW (1995). "Glyceraldehyde-3-phosphate ferredoxin oxidoreductase, a novel tungsten-containing enzyme with a potential glycolytic role in the hyperthermophilic archaeon Pyrococcus furiosus". J. Biol. Chem. 270 (15): 8389–92. doi:10.1074/jbc.270.15.8389. PMID 7721730.
• Roy R, Menon AL, Adams MW (2001). "Aldehyde Oxidoreductases from Pyrococcus furiosus". Hyperthermophilic enzymes Part B. Methods in Enzymology. Vol. 331. pp. 132–44. doi:10.1016/S0076-6879(01)31052-2. ISBN 978-0-12-182232-3. PMID 11265456.

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