L-ribulose-5-phosphate 3-epimerase

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
L-ribulose-5-phosphate 3-epimerase
Identifiers
EC number5.1.3.22
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

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.

References

    • 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 (1): 302–6. doi:10.1128/JB.184.1.302-306.2002. PMC 134747. PMID 11741871.


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