Reaction: 2-dehydro-3-deoxy-D-gluconate + NAD+ = (4S)-4,6-dihydroxy-2,5-dioxohexanoate + NADH + H+
Other name(s): 2-keto-3-deoxygluconate 5-dehydrogenase; 2-keto-3-deoxy-D-gluconate dehydrogenase (ambiguous); 2-keto-3-deoxygluconate (nicotinamide adenine dinucleotide (phosphate)) dehydrogenase; 2-keto-3-deoxy-D-gluconate (3-deoxy-D-glycero-2,5-hexodiulosonic acid) dehydrogenase (ambiguous)
Systematic name: 2-dehydro-3-deoxy-D-gluconate:NAD+ 5-oxidoreductase
Comments: The enzyme from Pseudomonas acts equally well on NAD+ or NADP+, while that from Erwinia chrysanthemi and Escherichia coli is more specific for NAD+.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 37250-56-9
References:
1. Condemine, G., Hugouvieux-Cotte-Pattat, N. and Robert-Baudouy, J. An enzyme in the pectolytic pathway of Erwinia chrysanthemi: 3-keto-3-deoxygluconate oxidoreductase. J. Gen. Microbiol. 130 (1984) 2839-2844.
2. Preiss, J. and Ashwell, G. Polygalacturonic acid metabolism in bacteria. II. Formation and metabolism of 3-deoxy-D-glycero-2,5-hexodiulosonic acid. J. Biol. Chem. 238 (1963) 1577-1583.