Fructuronate reductase

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fructuronate reductase
Identifiers
EC no. 1.1.1.57
CAS no. 9028-44-8
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, fructuronate reductase (EC 1.1.1.57) is an enzyme that catalyzes the chemical reaction

+ NAD+
 
 
 
H+
Biochem reaction arrow reversible NYYN horiz med.svg
 
H+
 
+ NADH
 

The two substrates of this enzyme are D-mannonic acid and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are D-fructuronic acid (shown in its keto form), reduced NADH, and a proton. [1] [2] [3]

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 D-mannonate:NAD+ 5-oxidoreductase. Other names in common use include mannonate oxidoreductase, mannonic dehydrogenase, D-mannonate dehydrogenase, and D-mannonate:NAD+ oxidoreductase. This enzyme participates in pentose and glucuronate interconversions.

References

  1. Enzyme 1.1.1.57 at KEGG Pathway Database.
  2. Hickman J; Ashwell G (1960). "Uronic acid metabolism in bacteria. II. Purification and properties of D-altronic acid and D-mannonic acid dehyrogenases in Escherichia coli". J. Biol. Chem. 235 (6): 1566–1570. doi: 10.1016/S0021-9258(19)76841-0 . PMID   14401695.
  3. Kilgore WW, Starr MP (1959). "Catabolism of galacturonic and glucuronic acids by Erwinia carotovora". J. Biol. Chem. 234 (9): 2227–35. doi: 10.1016/S0021-9258(18)69789-3 . PMID   14409051.