| glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.4.1.122 | ||||||||
| CAS no. | 97089-61-7 | ||||||||
| 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 | ||||||||
| |||||||||
In enzymology, a glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase (EC 2.4.1.122) is an enzyme that catalyzes the chemical reaction
- UDP-galactose + glycoprotein N-acetyl-D-galactosamine UDP + glycoprotein D-galactosyl-1,3-N-acetyl-D-galactosamine
Thus, the two substrates of this enzyme are UDP-galactose and glycoprotein N-acetyl-D-galactosamine, whereas its two products are UDP and glycoprotein D-galactosyl-1,3-N-acetyl-D-galactosamine.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-galactose:glycoprotein-N-acetyl-D-galactosamine 3-beta-D-galactosyltransferase. This enzyme is also called uridine diphosphogalactose-mucin beta-(1->3)-galactosyltransferase. This enzyme participates in o-glycan biosynthesis and glycan structures - biosynthesis 1.
See also[edit]
References[edit]
- Hesford FJ, Berger EG, Van den Eijnden DH (1981). "Identification of the product formed by human erythrocyte galactosyltransferase". Biochim. Biophys. Acta. 659 (2): 302–11. doi:10.1016/0005-2744(81)90056-5. PMID 6789880.
- Mendicino J, Sivakami S, Davila M, Chandrasekaran EV (1982). "Purification and properties of UDP-gal:N-acetylgalactosaminide mucin: beta 1,3-galactosyltransferase from swine trachea mucosa". J. Biol. Chem. 257 (7): 3987–94. PMID 6801057.
- Schachter H, Narasimhan S, Gleeson P, Vella G (1983). "Glycosyltransferases involved in elongation of N-glycosidically linked oligosaccharides of the complex or N-acetyllactosamine type". Methods Enzymol. 98: 98–134. doi:10.1016/0076-6879(83)98143-0. PMID 6366476.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction