Reaction: (4S)-4-hydroxy-2-oxoglutarate = pyruvate + glyoxylate
Glossary: (4S)-4-hydroxy-2-oxoglutatrate = (S)-2-hydroxy-4-oxopentanedioate = L-4-hydroxy-2-oxoglutarate
Other name(s): 2-oxo-4-hydroxyglutarate aldolase (ambiguous); hydroxyketoglutaric aldolase (ambiguous); 4-hydroxy-2-ketoglutaric aldolase (ambiguous); 2-keto-4-hydroxyglutaric aldolase (ambiguous); 4-hydroxy-2-ketoglutarate aldolase (ambiguous); 2-keto-4-hydroxyglutarate aldolase (ambiguous); 2-oxo-4-hydroxyglutaric aldolase (ambiguous); hydroxyketoglutarate aldolase (ambiguous); 2-keto-4-hydroxybutyrate aldolase (ambiguous); 4-hydroxy-2-oxoglutarate glyoxylate-lyase (ambiguous); eda (gene name)
Systematic name: (4S)-4-hydroxy-2-oxoglutarate glyoxylate-lyase (pyruvate-forming)
Comments: The enzyme from the bacterium Escherichia coli is specific for the (S)-enantiomer, is trifunctional, and also catalyses the reaction ofEC 220.127.116.11, 2-dehydro-3-deoxy-phosphogluconate aldolase, and the β-decarboxylation of oxaloacetate. cf. EC 18.104.22.168, 4-hydroxy-2-oxoglutarate aldolase.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:
1. Nishihara, H. and Dekker, E.E. Purification, substrate specificity and binding, β-decarboxylase activity, and other properties of Escherichia coli 2-keto-4-hydroxyglutarate aldolase. J. Biol. Chem. 247 (1972) 5079-5087. [PMID: 4560498]
2. Patil, R.V. and Dekker, E.E. Cloning, nucleotide sequence, overexpression, and inactivation of the Escherichia coli 2-keto-4-hydroxyglutarate aldolase gene. J. Bacteriol. 174 (1992) 102-107. [PMID: 1339418]