Limonin-D-ring-lactonase
| Limonin-D-ring-lactonase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 3.1.1.36 | ||||||||
| CAS no. | 9031-17-8 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
Limonin-D-ring-lactonase (EC 3.1.1.36) is an enzyme that catalyzes the reaction
The enzyme characterised from Citrus seeds hydrolyses the triterpenoid, limonin, specifically at the lactone forming the D-ring. The product, limonoate A-ring-lactone, retains its A-ring lactone.[1][2] Limonin is a bitter-tasting component of the seeds but limonoate A-ring-lactone is less bitter.[3]
This enzyme is a hydrolase, specifically one acting on carboxylic ester bonds. The systematic name of this enzyme class is limonoate-D-ring-lactone lactonohydrolase. Other names in common use include limonin-D-ring-lactone hydrolase, and limonin lactone hydrolase.[4]
References
- ↑ Maier VP, Hasegawa S, Hera E (1969). "Limonin D-ring-lactone hydrolase. A new enzyme from Citrus seeds". Phytochemistry. 8 (2): 405–407. doi:10.1016/S0031-9422(00)85439-4.
- ↑ Schomburg, Dietmar; Salzmann, Margit (1991). "Limonin-D-ring-lactonase". Enzyme Handbook 3. pp. 155–157. doi:10.1007/978-3-642-76463-9_32. ISBN 978-3-642-48962-4.
- ↑ Yada, Rickey Y.; Bryksa, Brian; Nip, Wai-Kit (2012). "An Introduction to Food Biochemistry". Food Biochemistry and Food Processing. pp. 18–19. doi:10.1002/9781118308035.ch1. ISBN 978-0-8138-0874-1.
- ↑ Enzyme 3.1.1.36 at KEGG Pathway Database.
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