Deoxylimonate A-ring-lactonase

The enzyme deoxylimonate A-ring-lactonase (EC 3.1.1.46) catalyzes the reaction

deoxylimonate + H₂O ${\displaystyle \rightleftharpoons }$ deoxylimononic acid D-ring-lactone

deoxylimonate A-ring-lactonase
Identifiers
EC no.	3.1.1.46
CAS no.	75788-82-8
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

The reaction opens the A-ring-lactone of the triterpenoid deoxylimonic acid, leaving the D-ring-lactone intact.

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name is deoxylimonate A-ring-lactonohydrolase.