Biology:2-hydroxy-3-oxoadipate synthase

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Short description: Class of enzymes
2-hydroxy-3-oxoadipate synthase
Identifiers
EC number2.2.1.5
CAS number9054-72-2
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

2-hydroxy-3-oxoadipate synthase (EC 2.2.1.5) is an enzyme that catalyzes the following chemical reaction:

  1. REDIRECT Template:Chemical reaction

The two substrates of this enzyme are α-ketoglutaric acid and glyoxylic acid. Its products are 2-hydroxy-3-oxoadipic acid and carbon dioxide.[1][2] The product can spontaneously decarboxylate to give 5-hydroxy-4-oxo-pentanoic acid:[3]

  1. REDIRECT Template:Chemical reaction

This enzyme belongs to the family of transferases, specifically those transferring aldehyde or ketonic groups (transaldolases and transketolases, respectively). Other names in common use include 2-hydroxy-3-oxoadipate glyoxylate-lyase (carboxylating), alpha-ketoglutaric-glyoxylic carboligase, and oxoglutarate: glyoxylate carboligase. This enzyme participates in glyoxylate and dicarboxylate metabolism. It employs one cofactor, thiamin diphosphate.[4]

References

  1. ↑ "Isolation and identification of 5-hydroxy-4-ketovaleric acid as a product of alpha-ketoglutarate: glyoxylate carboligase". Biochemistry 7 (1): 333–7. 1968. doi:10.1021/bi00841a042. PMID 4320439. 
  2. ↑ "The synergistic decarboxylation of glyoxalate and 2-oxoglutarate by an enzyme system from pig-liver mitochondria". Biochem. J. 102 (3): 885–897. 1967. doi:10.1042/bj1020885. PMID 16742506. 
  3. ↑ "Carboligase activity of alpha-ketoglutarate dehydrogenase". Biochemistry 9 (5): 1148–53. 1970. doi:10.1021/bi00807a015. PMID 5418712. 
  4. ↑ Enzyme 2.2.1.5 at KEGG Pathway Database.