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4-hydroxy-2-oxoglutarate aldolase

From Wikipedia, the free encyclopedia
4-hydroxy-2-oxoglutarate aldolase
Identifiers
EC no.4.1.3.16
CAS no.9030-81-3
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

The enzyme 4-hydroxy-2-oxoglutarate aldolase (EC 4.1.3.16) catalyzes the chemical reaction

4-hydroxy-2-oxoglutarate pyruvate + glyoxylate

This enzyme belongs to the family of lyases, specifically the oxo-acid-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 4-hydroxy-2-oxoglutarate glyoxylate-lyase (pyruvate-forming). Other names in common use include 2-oxo-4-hydroxyglutarate aldolase, hydroxyketoglutaric aldolase, 4-hydroxy-2-ketoglutaric aldolase, 2-keto-4-hydroxyglutaric aldolase, 4-hydroxy-2-ketoglutarate aldolase, 2-keto-4-hydroxyglutarate aldolase, 2-oxo-4-hydroxyglutaric aldolase, DL-4-hydroxy-2-ketoglutarate aldolase, hydroxyketoglutarate aldolase, 2-keto-4-hydroxybutyrate aldolase, and 4-hydroxy-2-oxoglutarate glyoxylate-lyase. This enzyme participates in arginine and proline metabolism and glyoxylate and dicarboxylate metabolism.

Structural studies

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As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1WAU and 2C0A.

References

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  • KURATOMI K, FUKUNAGA K (1963). "The metabolism of γ-hydroxyglutamate in rat liver I. Enzymic synthesis of γ-hydroxy-α-ketoglutarate from pyruvate and glyoxylate". Biochim. Biophys. Acta. 78 (4): 617–28. doi:10.1016/0006-3002(63)91027-8. PMID 14089442.
  • Lane RS, Shapley A, Dekker EE (1971). "2-keto-4-hydroxybutyrate aldolase. Identification as 2-keto-4-hydroxyglutarate aldolase, catalytic properties, and role in the mammalian metabolism of L-homoserine". Biochemistry. 10 (8): 1353–64. doi:10.1021/bi00784a013. PMID 5580656.
  • Nishihara H, Dekker EE (1972). "Purification, substrate specificity and binding, -decarboxylase activity, and other properties of Escherichia coli 2-keto-4-hydroxyglutarate aldolase". J. Biol. Chem. 247 (16): 5079–87. doi:10.1016/S0021-9258(19)44941-7. PMID 4560498.
  • Boyer, P.D. (Ed.), The Enzymes, 3rd ed., vol. 7, Academic Press, New York, 1972, p. 281-302.