Galactinol—raffinose galactosyltransferase
Class of enzymes
From Wikipedia, the free encyclopedia
Galactinol-raffinose galactosyltransferase (EC 2.4.1.67) is an enzyme that catalyzes the chemical reaction
| Galactinol-raffinose galactosyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.4.1.67 | ||||||||
| CAS no. | 37277-70-6 | ||||||||
| 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 | ||||||||
| |||||||||
The two substrates of this enzyme are galactinol and raffinose. Its products are inositol (myo-inositol) and the tetrasaccharide, stachyose.[1] The enzyme has been characterised from Vicia faba.[2]
This enzyme participates in galactose metabolism.[3]
Nomenclature
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is alpha-D-galactosyl-(1→3)-myo-inositol:raffinose galactosyltransferase. Other names in common use include galactinol-raffinose galactosyltransferase, and stachyose synthetase.[4]
