Biology:Galactoside 2-alpha-L-fucosyltransferase
| galactoside 2-alpha-L-fucosyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 2.4.1.69 | ||||||||
| CAS number | 56093-23-3 | ||||||||
| 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 | ||||||||
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In enzymology, a galactoside 2-alpha-L-fucosyltransferase (EC 2.4.1.69) is an enzyme that catalyzes the chemical reaction
- GDP-beta-L-fucose + beta-D-galactosyl-R [math]\displaystyle{ \rightleftharpoons }[/math] GDP + alpha-L-fucosyl-1,2-beta-D-galactosyl-R
Thus, the two substrates of this enzyme are GDP-beta-L-fucose and beta-D-galactosyl-R, whereas its two products are GDP and alpha-L-fucosyl-1,2-beta-D-galactosyl-R.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is GDP-beta-L-fucose:beta-D-galactosyl-R 2-alpha-L-fucosyltransferase. Other names in common use include blood group H alpha-2-fucosyltransferase, guanosine diphosphofucose-galactoside 2-L-fucosyltransferase, alpha-(1->2)-L-fucosyltransferase, alpha-2-fucosyltransferase, alpha-2-L-fucosyltransferase, blood-group substance H-dependent fucosyltransferase, guanosine diphosphofucose-glycoprotein 2-alpha-fucosyltransferase, guanosine diphosphofucose-lactose fucosyltransferase, GDP fucose-lactose fucosyltransferase, guanosine diphospho-L-fucose-lactose fucosyltransferase, guanosine diphosphofucose-beta-D-galactosyl-alpha-2-L-fucosyltransferase, guanosine diphosphofucose-galactosylacetylglucosaminylgalactosylglucosylceramide, alpha-L-fucosyltransferase, guanosine diphosphofucose-glycoprotein 2-alpha-L-fucosyltransferase, H-gene-encoded beta-galactoside alpha1->2fucosyltransferase, secretor-type beta-galactoside alpha1->2fucosyltransferase, beta-galactoside alpha1->2fucosyltransferase, and GDP-L-fucose:lactose fucosyltransferase. This enzyme participates in 4 metabolic pathways: glycosphingolipid biosynthesis - lactoseries, glycosphingolipid biosynthesis - neo-lactoseries, glycosphingolipid biosynthesis - globoseries, and glycan structures - biosynthesis 2.
References
- "Enzymatic synthesis of a blood group H-related glycosphingolipid by an alpha-fucosyltransferase from bovine spleen". J. Biol. Chem. 250 (8): 2956–62. 1975. PMID 804484.
- "Enzymatic properties of the beta-galactoside alpha 1 leads to 2 fucosyltransferase from porcine submaxillary gland". J. Biol. Chem. 255 (11): 5373–9. 1980. PMID 7372640.
- "Purification to homogeneity of H blood group beta-galactoside alpha 1 leads to 2 fucosyltransferase from porcine submaxillary gland". J. Biol. Chem. 255 (11): 5364–72. 1980. PMID 6246105.
- Grollman AP (1966). "GDP-L-fucose:lactose fucosyltransferase from mammary gland". Methods Enzymol. 8: 351–353. doi:10.1016/0076-6879(66)08065-0.
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