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Glucuronate isomerase

From Wikipedia, the free encyclopedia
glucuronate isomerase
Identifiers
EC no.5.3.1.12
CAS no.9023-87-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

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

D-glucuronate 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

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

References

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  • Ashwell G, Wahba AJ, Hickman J (1960). "Uronic acid metabolism in bacteria. I. Purification and properties of uronic acid isomerase in Escherichia coli". J. Biol. Chem. 235 (6): 1559–1565. doi:10.1016/S0021-9258(19)76840-9. PMID 13794771.
  • 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.