L-arabinonolactonase

In enzymology, a L-arabinonolactonase (EC 3.1.1.15) is an enzyme that catalyzes the chemical reaction

L-arabinono-1,4-lactone + H2O L-arabinonate
L-arabinonolactonase
Identifiers
EC number3.1.1.15
CAS number9025-95-0
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

Thus, the two substrates of this enzyme are L-arabinono-1,4-lactone and H2O, whereas its product is L-arabinonate.

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name of this enzyme class is L-arabinono-1,4-lactone lactonohydrolase. This enzyme participates in ascorbate and aldarate metabolism.

References

    • Weimberg R, Doudoroff M (December 1955). "The oxidation of L-arabinose by Pseudomonas saccharophila". The Journal of Biological Chemistry. 217 (2): 607–24. PMID 13271422.


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