|
|
Your query returned 1 entry. 
Printable version
| EC | 2.4.3.2 | ||||
| Accepted name: | β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminide α-2,3-sialyltransferase | ||||
| Reaction: | CMP-N-acetyl-β-neuraminate + a β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminyl-R = CMP + an N-acetyl-α-neuraminyl-(2→3)-β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminyl-R | ||||
| For diagram of ganglioside biosynthesis, click here | |||||
| Glossary: | a β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminyl-(1→4)-[N-acetyl-α-neuraminyl-(2→3)]-β-D-galactosyl-(1→4)-β-D-glucosyl-(1↔1)-ceramide = gangloside GM1a an N-acetyl-α-neuraminyl-(2→3)-β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminyl-(1→4)-[N-acetyl-α-neuraminyl-(2→3)]-β-D-galactosyl-(1→4)-β-D-glucosyl-(1↔1)-ceramide = gangloside GD1a |
||||
| Other name(s): | CMP-N-acetylneuraminate:D-galactosyl-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosyl-(1↔1)-ceramide N-acetylneuraminyltransferase (ambiguous); monosialoganglioside sialyltransferase; CMP-N-acetylneuraminate:a β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminyl-(1→4)-[α-N-acetylneuraminyl-(2→3)]-β-D-galactosyl-(1→4)-β-D-glucosyl-(1↔1)-ceramide N-acetyl-β-neuraminyltransferase | ||||
| Systematic name: | CMP-N-acetyl-β-neuraminate:a β-D-galactosyl-(1→3)-N-acetyl-β-D-galactosaminyl-R α-(2→3)-N-acetylneuraminyltransferase (configuration-inverting) | ||||
| Comments: | The enzyme recognizes the sequence β-D-galactosyl-(1→3)-N-acetyl-D-galactosaminyl (known as type 1 histo-blood group precursor disaccharide) in non-reducing termini of glycan moieties in glycoproteins and glycolipids [1]. When acting on gangloside GM1a, it forms gangloside GD1a [2]. | ||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 60202-12-2 | ||||
| References: |
| ||||