Biology:Galactinol—raffinose galactosyltransferase
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Short description: Class of enzymes
| Galactinol-raffinose galactosyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 2.4.1.67 | ||||||||
| CAS number | 37277-70-6 | ||||||||
| 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 | ||||||||
| |||||||||
Galactinol-raffinose galactosyltransferase (EC 2.4.1.67) is an enzyme that catalyzes the chemical reaction
- REDIRECT Template:Chemical reaction
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]
References
- ↑ "Myo-inositol, a cofactor in the biosynthesis of stachyose". Eur. J. Biochem. 4 (2): 233–9. 1968. doi:10.1111/j.1432-1033.1968.tb00199.x. PMID 5655499.
- ↑ "The function of myo-inositol in the biosynthesis of raffinose. Purification and characterization of galactinol:sucrose 6-galactosyltransferase from Vicia faba seeds". Eur. J. Biochem. 38 (1): 103–10. 1973. doi:10.1111/j.1432-1033.1973.tb03039.x. PMID 4774118.
- ↑ Preiss, J. (Ed.), The Biochemistry of Plants, vol. 3, Academic Press, New York, 1980, p. 221-270
- ↑ Enzyme 2.4.1.67 at KEGG Pathway Database.
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