Kynurenate-7,8-dihydrodiol dehydrogenase

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kynurenate-7,8-dihydrodiol dehydrogenase
Identifiers
EC no. 1.3.1.18
CAS no. 37255-30-4
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
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Gene Ontology AmiGO / QuickGO
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In enzymology, kynurenate-7,8-dihydrodiol dehydrogenase (EC 1.3.1.18) is an enzyme that catalyzes the chemical reaction

+ NAD+
 
 
 
H+
Kynurenate-7,8-dihydrodiol dehydrogenase
 
H+
 
+ NADH
 

The two substrates of this enzyme are 7,8-dihydro-7,8-dihydroxykynurenic acid and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are 7,8-dihydroxykynurenic acid, reduced NADH, and a proton. [1] [2]

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 7,8-dihydro-7,8-dihydroxykynurenate:NAD+ oxidoreductase. Other names in common use include 7,8-dihydro-7,8-dihydroxykynurenate dehydrogenase, and 7,8-dihydroxykynurenic acid 7,8-diol dehydrogenase. This enzyme participates in tryptophan metabolism.

References

  1. Enzyme 1.3.1.18 at KEGG Pathway Database.
  2. Taniuchi H, Hayaishi O (January 1963). "Studies on the metabolism of kynurenic acid. III. Enzymatic formation of 7,8-dihydroxykynurenic acid from kynurenic acid". The Journal of Biological Chemistry. 238: 283–93. doi: 10.1016/S0021-9258(19)83992-3 . PMID   13984873.