| EC |
5.1.3.1 |
| Accepted name: |
ribulose-phosphate 3-epimerase |
| Reaction: |
D-ribulose 5-phosphate = D-xylulose 5-phosphate |
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For diagram of the early stages of the pentose-phosphate pathway, click here and for diagram of the Calvin cycle, click here |
| Other name(s): |
phosphoribulose epimerase; erythrose-4-phosphate isomerase; phosphoketopentose 3-epimerase; xylulose phosphate 3-epimerase; phosphoketopentose epimerase; ribulose 5-phosphate 3-epimerase; D-ribulose phosphate-3-epimerase; D-ribulose 5-phosphate epimerase; D-ribulose-5-P 3-epimerase; D-xylulose-5-phosphate 3-epimerase; pentose-5-phosphate 3-epimerase |
| Systematic name: |
D-ribulose-5-phosphate 3-epimerase |
| Comments: |
The enzyme also converts D-erythrose 4-phosphate into D-erythrulose 4-phosphate and D-threose 4-phosphate. |
| Links to other databases: |
BRENDA, EXPASY, GTD, KEGG, MetaCyc, PDB, CAS registry number: 9024-20-8 |
| References: |
| 1. |
Ashwell, G. and Hickman, J. Enzymatic formation of xylulose 5-phosphate from ribose 5-phosphate in spleen. J. Biol. Chem. 226 (1957) 65–76. [PMID: 13428737] |
| 2. |
Dickens, F. and Williamson, D.H. Pentose phosphate isomerase and epimerase from animal tissues. Biochem. J. 64 (1956) 567–578. [PMID: 13373810] |
| 3. |
Hurwitz, J. and Horecker, B.L. The purification of phosphoketopentoepimerase from Lactobacillus pentosus and the preparation of xylulose 5-phosphate. J. Biol. Chem. 223 (1956) 993–1008. [PMID: 13385247] |
| 4. |
Stumpf, P.K. and Horecker, B.L. The røole of xylulose 5-phosphate in xylose metabolism of Lactobacillus pentosus. J. Biol. Chem. 218 (1956) 753–768. [PMID: 13295228] |
| 5. |
Terada, H., Mukae, K., Hosomi, S., Mizoguchi, T. and Uehara, K. Characterization of an enzyme which catalyzes isomerization and epimerization of D-erythrose 4-phosphate. Eur. J. Biochem. 148 (1985) 345–351. [DOI] [PMID: 3987693] |
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| [EC 5.1.3.1 created 1961, modified 1989] |
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