2,5-didehydrogluconate reductase

Last updated
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.