4-hydroxy-2-oxoglutarate aldolase

Identifiers
EC no.| 4.1.3.16
CAS no.| 9030-81-3
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

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

4-hydroxy-2-oxoglutarate  ⇌ {\displaystyle \rightleftharpoons } 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[edit]

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

## References[edit]

* 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. PMID 4560498.
* Boyer, P.D. (Ed.), The Enzymes, 3rd ed., vol. 7, Academic Press, New York, 1972, p. 281-302.

* v
* t
* e

Carbon–carbon lyases (EC 4.1)

4.1.1: Carboxy-lyases|

* Acetoacetate decarboxylase
* Adenosylmethionine decarboxylase
* Arginine decarboxylase
* Aromatic L-amino acid decarboxylase
* Glutamate decarboxylase
* Histidine decarboxylase
* Lysine decarboxylase
* Malonyl-CoA decarboxylase
* Ornithine decarboxylase
* Oxaloacetate decarboxylase
* Phosphoenolpyruvate carboxykinase
* Phosphoenolpyruvate carboxylase
* Phosphoribosylaminoimidazole carboxylase
* Pyrophosphomevalonate decarboxylase
* Pyruvate decarboxylase
* RuBisCO
* Uridine monophosphate synthetase/Orotidine 5'-phosphate decarboxylase
* Uroporphyrinogen III decarboxylase

4.1.2: Aldehyde-lyases|

* Fructose-bisphosphate aldolase
* Aldolase A
* Aldolase B
* Aldolase C
* 2-hydroxyphytanoyl-CoA lyase
* Threonine aldolase

4.1.3: Oxo-acid-lyases|

* Isocitrate lyase
* 3-hydroxy-3-methylglutaryl-CoA lyase

4.1.99: Other|

* Tryptophanase
* Photolyase
* CPD lyase
* Spore photoproduct lyase

* v
* t
* e

Enzymes

Activity|

* Active site
* Binding site
* Catalytic triad
* Oxyanion hole
* Enzyme promiscuity
* Diffusion-limited enzyme
* Coenzyme
* Cofactor
* Enzyme catalysis

Regulation|

* Allosteric regulation
* Cooperativity
* Enzyme inhibitor
* Enzyme activator

Classification|

* EC number
* Enzyme superfamily
* Enzyme family
* List of enzymes

Kinetics|

* Enzyme kinetics
* Eadie–Hofstee diagram
* Hanes–Woolf plot
* Lineweaver–Burk plot
* Michaelis–Menten kinetics

Types|

* EC1 Oxidoreductases (list)
* EC2 Transferases (list)
* EC3 Hydrolases (list)
* EC4 Lyases (list)
* EC5 Isomerases (list)
* EC6 Ligases (list)
* EC7 Translocases (list)

Portal:

Biology

This EC 4.1 enzyme-related article is a stub. You can help Wikipedia by expanding it.

* v
* t
* e

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template