| EC |
1.1.1.24 |
| Accepted name: |
quinate/shikimate dehydrogenase (NAD+) |
| Reaction: |
L-quinate + NAD+ = 3-dehydroquinate + NADH + H+ |
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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 1.1.5.8, quinate/shikimate dehydrogenase (quinone), EC 1.1.1.282, quinate/shikimate dehydrogenase [NAD(P)+], and EC 1.1.1.25, shikimate dehydrogenase (NADP+). |
| Links to other databases: |
BRENDA, EXPASY, GTD, KEGG, MetaCyc, PDB, CAS registry number: 9028-28-8 |
| References: |
| 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] |
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| [EC 1.1.1.24 created 1961, modified 1976, modified 2004, modified 2021] |
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