Reaction: CMP-N-acetylneuraminate + β-D-galactosyl-(1→4)-N-acetyl-β-D-glucosaminyl-(1→3)-β-D-galactosyl-(1→4)-D-glucosyl-(1↔1)-ceramide = CMP + α-N-acetylneuraminyl-(2→3)-β-D-galactosyl-(1→4)-N-acetyl-β-D-glucosaminyl-(1→3)-β-D-galactosyl-(1→4)-D-glucosyl-(1↔1)-ceramide
Glossary: neolactotetraosylceramide = β-D-galactosyl-(1→4)-N-acetyl-β-D-glucosaminyl-(1→3)-β-D-galactosyl-(1→4)-D-glucosyl-(1↔1)-ceramide
Other name(s): sialyltransferase; cytidine monophosphoacetylneuraminate-neolactotetraosylceramide sialyltransferase; sialyltransferase 3; SAT-3
Systematic name: CMP-N-acetylneuraminate:neolactotetraosylceramide α-2,3-sialyltransferase
Links to other databases: BRENDA, EXPASY, KEGG, CAS registry number: 83745-06-6
References:
1. Basu, M., Basu, S., Stoffyn, A. and Stoffyn, P. Biosynthesis in vitro of sialyl(α2-3)neolactotetraosylceramide by a sialyltransferase from embryonic chicken brain. J. Biol. Chem. 257 (1982) 12765-12769. [PMID: 7130178]