EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
2.4.1.131 | 2 GDP-alpha-D-mannose + alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphosphodolichol |
- |
Saccharomyces cerevisiae |
2 GDP + alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | 2 GDP-alpha-D-mannose + alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphosphodolichol |
- |
Saccharomyces cerevisiae ATCC 204508 |
2 GDP + alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | 2 GDP-alpha-D-mannose + D-Man-alpha-(1->3)-(D-Man-alpha-(1->6))-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
Oryctolagus cuniculus |
2 UDP + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-(D-Man-alpha-(1->6))-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | 2 GDP-alpha-D-mannose + D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
Saccharomyces cerevisiae |
2 GDP + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | 2 GDP-alpha-D-mannose + D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
mannosyltransferase Alg11 carries out two consecutive alpha-1,2-mannosylation steps of the substrate Manalpha1,3-(Manalpha1,6)-Man-beta1,4-GlcNAc-beta1,4-GlcNAc-diphosphodolichol. Biosynthesis of asparagine-linked glycoproteins, which is assembled by the series of membrane-bound glycosyltransferases that comprise the dolichol pathway |
Saccharomyces cerevisiae |
2 GDP + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | 2 GDP-alpha-D-mannose + D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
the biosynthesis of asparagine-linked glycans occurs in an evolutionarily conserved manner with the assembly of the unique lipid-linked oligosaccharide precursor Glc3Man9GlcNAc2-PPDo at the endoplasmic reticulum. The enzyme catalyzes the transfer of two alpha1,2-linked mannose residues from GDP-mannose to Man3GlcNAc2-PP-Dol and subsequently to Man4GlcNAc2-PP-Dol forming the Man5GlcNAc2-PP-Dol intermediate at the cytosolic side of the endoplasmic reticulum before flipping to the luminal side |
Saccharomyces cerevisiae |
2 GDP + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | 2 GDP-alpha-D-mannose + D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
mannosyltransferase Alg11 carries out two consecutive alpha-1,2-mannosylation steps of the substrate Manalpha1,3-(Manalpha1,6)-Man-beta1,4-GlcNAc-beta1,4-GlcNAc-diphosphodolichol |
Saccharomyces cerevisiae |
2 GDP + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol |
- |
? |
2.4.1.131 | GDP-mannose + lipid-linked Manalpha(1-3)Manbeta-GlcNAcbeta-GlcNAc |
reaction via penta- and hexasaccharide intermediates to a lipid-linked heptasaccharide, presumably multiple mannosyltransferases involved |
Bos taurus |
GDP + lipid-linked Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)(Manalpha(1-6))Manbeta-GlcNAcbeta-GlcNAc |
- |
? |
2.4.1.131 | GDP-mannose + oligosaccharide-lipid acceptor |
oligosaccharide portion: a mixture of trisaccharide and pentasaccharide, acceptor lipids are probably Manbeta-GlcNAc-GlcNAc-pyrophosphoryldolichol and Man2alpha-Manbeta-GlcNAc-GlcNAc-pyrophosphoryldolichol |
Sus scrofa |
GDP + alpha-mannosyl-1,2-oligosaccharide-lipid |
heptasaccharide-lipid as product, probably Man5GlcNAc2 as heptasaacharide |
? |
2.4.1.131 | GDP-mannose + oligosaccharide-lipid acceptor |
oligosaccharide-P-P-lipid: major oligosaccharide component is Man2GlcNAc2 |
Oryctolagus cuniculus |
GDP + alpha-mannosyl-1,2-oligosaccharide-lipid |
penta-, hexa-, and heptasaccharide as oligosaccharide portion, formed by the stepwise addition of mannose to the growing oligosaccharide chain |
? |