L-ribulose-5-phosphate 3-epimerase

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In enzymology, a L-ribulose-5-phosphate 3-epimerase (EC 5.1.3.22) is an enzyme that catalyzes the chemical reaction

L-ribulose 5-phosphate L-xylulose 5-phosphate

Hence, this enzyme has one substrate, L-ribulose 5-phosphate, and one product, L-xylulose 5-phosphate.

This enzyme belongs to the family of isomerases, specifically those racemases and epimerases acting on carbohydrates and derivatives. The systematic name of this enzyme class is L-ribulose-5-phosphate 3-epimerase. Other names in common use include L-xylulose 5-phosphate 3-epimerase, UlaE, and SgaU. This enzyme participates in ascorbate and aldarate metabolism.

[edit] References

• IUBMB entry for 5.1.3.22
• BRENDA references for 5.1.3.22 (Recommended.)
• PubMed references for 5.1.3.22
• PubMed Central references for 5.1.3.22
• Google Scholar references for 5.1.3.22
• Yew WS, Gerlt JA (2002). "Utilization of L-ascorbate by Escherichia coli K-12: assignments of functions to products of the yjf-sga and yia-sgb operons". J. Bacteriol. 184: 302–6. doi:10.1128/JB.184.1.302-306.2002. PMID 11741871. 

[edit] External links

• IUBMB entry for 5.1.3.22

• KEGG entry for 5.1.3.22

• BRENDA entry for 5.1.3.22

• NiceZyme view of 5.1.3.22

• EC2PDB: PDB structures for 5.1.3.22

• PRIAM entry for 5.1.3.22

• PUMA2 entry for 5.1.3.22

• IntEnz: Integrated Enzyme entry for 5.1.3.22

• MetaCyc entry for 5.1.3.22

• Atomic-resolution structures of enzymes belonging to this class