Biology:Glucuronate isomerase

From HandWiki
glucuronate isomerase
Identifiers
EC number5.3.1.12
CAS number9023-87-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

In enzymology, a glucuronate isomerase (EC 5.3.1.12) is an enzyme that catalyzes the chemical reaction

D-glucuronate [math]\displaystyle{ \rightleftharpoons }[/math] D-fructuronate

Hence, this enzyme has one substrate, D-glucuronate, and one product, D-fructuronate.

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D-glucuronate aldose-ketose-isomerase. Other names in common use include uronic isomerase, uronate isomerase, D-glucuronate isomerase, uronic acid isomerase, and D-glucuronate ketol-isomerase. This enzyme participates in pentose and glucuronate interconversions.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1J5S and 2Q01.

References

  • "Uronic acid metabolism in bacteria. I. Purification and properties of uronic acid isomerase in Escherichia coli". J. Biol. Chem. 235: 1559–1565. 1960. PMID 13794771. 
  • "Catabolism of galacturonic and glucuronic acids by Erwinia carotovora". J. Biol. Chem. 234: 2227–35. 1959. PMID 14409051.