The Enzyme Database

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Accepted name: quinate/shikimate dehydrogenase (NAD+)
Reaction: L-quinate + NAD+ = 3-dehydroquinate + NADH + H+
For diagram of shikimate and chorismate biosynthesis, click here
Glossary: quinate = (1R,3R,4R,5R)-1,3,4,5-tetrahydroxycyclohexanecarboxylic acid and is a cyclitol carboxylate
The numbering system used for the 3-dehydroquinate is that of the recommendations on cyclitols, sections I-8 and I-9: and is shown in the reaction diagram. The use of the term '5-dehydroquinate' for this compound is based on an earlier system of numbering.
Other name(s): quinate dehydrogenase (ambiguous); quinic dehydrogenase (ambiguous); quinate:NAD oxidoreductase; quinate 5-dehydrogenase (ambiguous); quinate:NAD+ 5-oxidoreductase
Systematic name: L-quinate:NAD+ 3-oxidoreductase
Comments: The enzyme, found mostly in bacteria (mostly, but not exclusively in Gram-positive bacteria), fungi, and plants, participates in the degradation of quinate and shikimate with a strong preference for NAD+ as a cofactor. While the enzyme can act on both quinate and shikimate, activity is higher with the former. cf. EC, quinate/shikimate dehydrogenase (quinone), EC, quinate/shikimate dehydrogenase [NAD(P)+], and EC, shikimate dehydrogenase (NADP+).
Links to other databases: BRENDA, EXPASY, GTD, KEGG, MetaCyc, CAS registry number: 9028-28-8
1.  Mitsuhashi, S. and Davis, B.D. Aromatic biosynthesis. XIII. Conversion of quinic acid to 5-dehydroquinic acid by quinic dehydrogenase. Biochim. Biophys. Acta 15 (1954) 268–280. [DOI] [PMID: 13208693]
2.  Gamborg, O.L. Aromatic metabolism in plants. III. Quinate dehydrogenase from mung bean cell suspension cultures. Biochim. Biophys. Acta 128 (1966) 483–491.
3.  Hawkins, A.R., Giles, N.H. and Kinghorn, J.R. Genetical and biochemical aspects of quinate breakdown in the filamentous fungus Aspergillus nidulans. Biochem. Genet. 20 (1982) 271–286. [PMID: 7049157]
4.  Singh, S., Stavrinides, J., Christendat, D. and Guttman, D.S. A phylogenomic analysis of the shikimate dehydrogenases reveals broadscale functional diversification and identifies one functionally distinct subclass. Mol. Biol. Evol. 25 (2008) 2221–2232. [DOI] [PMID: 18669580]
5.  Teramoto, H., Inui, M. and Yukawa, H. Regulation of expression of genes involved in quinate and shikimate utilization in Corynebacterium glutamicum. Appl. Environ. Microbiol. 75 (2009) 3461–3468. [DOI] [PMID: 19376919]
6.  Kubota, T., Tanaka, Y., Hiraga, K., Inui, M. and Yukawa, H. Characterization of shikimate dehydrogenase homologues of Corynebacterium glutamicum. Appl. Microbiol. Biotechnol. 97 (2013) 8139–8149. [DOI] [PMID: 23306642]
7.  Peek, J. and Christendat, D. The shikimate dehydrogenase family: functional diversity within a conserved structural and mechanistic framework. Arch. Biochem. Biophys. 566 (2015) 85–99. [DOI] [PMID: 25524738]
[EC created 1961, modified 1976, modified 2004, modified 2021]

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