Fructuronate reductase

fructuronate reductase
Identifiers
EC no.1.1.1.57
CAS no.9028-44-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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PMCarticles
PubMedarticles
NCBIproteins

In enzymology, fructuronate reductase (EC 1.1.1.57) is an enzyme that catalyzes the chemical reaction

D-mannonic acid
 
 
 
H+
 
H+
 
keto-D-fructuronic acid
 

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.