2,5-didehydrogluconate reductase

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2,5-didehydrogluconate reductase
Identifiers
EC no. 1.1.1.274
CAS no. 95725-95-4
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, 2,5-didehydrogluconate reductase (EC 1.1.1.274) is an enzyme that catalyzes the chemical reaction

 
 
 
H+
2,5-didehydrogluconate reductase
 
H+
 
 

The two substrates of this enzyme are 2-dehydro-D-gluconic acid and oxidised nicotinamide adenine dinucleotide phosphate (NADP+). Its products are 2,5-didehydro-D-gluconic acid, reduced NADPH, and a proton. [1] [2] [3] [4]

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 2-dehydro-D-gluconate:NADP+ 2-oxidoreductase. Other names in common use include 2,5-diketo-D-gluconate reductase, and YqhE reductase.

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1VP5.

References

  1. ↑ Enzyme 1.1.1.274 at KEGG Pathway Database.
  2. ↑ Yum DY, Lee BY, Pan JG (1999). "Identification of the yqhE and yafB genes encoding two 2, 5-diketo-D-gluconate reductases in Escherichia coli". Appl. Environ. Microbiol. 65 (8): 3341–6. Bibcode:1999ApEnM..65.3341Y. doi:10.1128/AEM.65.8.3341-3346.1999. PMC   91502 . PMID   10427017.
  3. ↑ Yum DY, Lee BY, Hahm DH, Pan JG (1998). "The yiaE gene, located at 80.1 minutes on the Escherichia coli chromosome, encodes a 2-ketoaldonate reductase". J. Bacteriol. 180 (22): 5984–8. doi:10.1128/JB.180.22.5984-5988.1998. PMC   107674 . PMID   9811658.
  4. ↑ Habrych M, Rodriguez S, Stewart JD (2002). "Purification and identification of an Escherichia coli beta-keto ester reductase as 2,5-diketo-D-gluconate reductase YqhE". Biotechnol. Prog. 18 (2): 257–61. doi:10.1021/bp0101841. PMID   11934293. S2CID   23141855.