Linamarin synthase
In enzymology, a linamarin synthase (EC 2.4.1.63) is an enzyme that catalyzes the chemical reaction
- UDP-glucose + 2-hydroxy-2-methylpropanenitrile UDP + linamarin
| linamarin synthase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 2.4.1.63 | ||||||||
| CAS number | 37277-68-2 | ||||||||
| 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 | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are UDP-glucose and 2-hydroxy-2-methylpropanenitrile, whereas its two products are UDP and linamarin.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucose:2-hydroxy-2-methylpropanenitrile beta-D-glucosyltransferase. Other names in common use include uridine diphosphoglucose-ketone glucosyltransferase, uridine diphosphate-glucose-ketone cyanohydrin, beta-glucosyltransferase, UDP glucose ketone cyanohydrin glucosyltransferase, UDP-glucose:ketone cyanohydrin beta-glucosyltransferase, and uridine diphosphoglucose-ketone cyanohydrin glucosyltransferase.
References
- Hahlbrock K, Conn EE (1970). "The biosynthesis of cyanogenic glycosides in higher plants. I Purification and properties of a uridine diphosphate-glucose-ketone cyanohydrin beta-glucosyltransferase from Linum usitatissimum L". J. Biol. Chem. 245 (5): 917–22. PMID 5417265.