| EC |
4.1.1.31 |
| Accepted name: |
phosphoenolpyruvate carboxylase |
| Reaction: |
phosphate + oxaloacetate = phosphoenolpyruvate + HCO3- |
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For diagram of the 3-hydroxypropanoate/4-hydroxybutanoate cycle and dicarboxylate/4-hydroxybutanoate cycle in archaea, click here |
| Other name(s): |
phosphopyruvate (phosphate) carboxylase; PEP carboxylase; phosphoenolpyruvic carboxylase; PEPC; PEPCase; phosphate:oxaloacetate carboxy-lyase (phosphorylating) |
| Systematic name: |
phosphate:oxaloacetate carboxy-lyase (adding phosphate, phosphoenolpyruvate-forming) |
| Comments: |
This enzyme replenishes oxaloacetate in the tricarboxylic acid cycle when operating in the reverse direction. The reaction proceeds in two steps: formation of carboxyphosphate and the enolate form of pyruvate, followed by carboxylation of the enolate and release of phosphate. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9067-77-0 |
| References: |
| 1. |
Chen, J.H. and Jones, R.F. Multiple forms of phosphoenolpyruvate carboxylase from Chlamydomonas reeinhardtii. Biochim. Biophys. Acta 214 (1970) 318–325. [DOI] [PMID: 5501374] |
| 2. |
Mazelis, M. and Vennesland, B. Carbon dioxide fixation into oxalacetate in higher plants. Plant Physiol. 32 (1957) 591–600. [PMID: 16655053] |
| 3. |
Tovar-Mendez, A., Mujica-Jimenez, C. and Munoz-Clares, R.A. Physiological implications of the kinetics of maize leaf phosphoenolpyruvate carboxylase. Plant Physiol. 123 (2000) 149–160. [PMID: 10806233] |
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| [EC 4.1.1.31 created 1961, modified 2011] |
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