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Information on EC 2.4.3.4 - beta-galactoside alpha-2,3-sialyltransferase

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EC Tree
     2 Transferases
         2.4 Glycosyltransferases
             2.4.3 Sialyltransferases
                2.4.3.4 beta-galactoside alpha-2,3-sialyltransferase
IUBMB Comments
The acceptor is Galbeta1,3GalNAc-R, where R is H, a threonine or serine residue in a glycoprotein, or a glycolipid. Lactose can also act as acceptor. May be identical with EC 2.4.3.2 beta-D-galactosyl-(1->3)-N-acetyl-beta-D-galactosaminide alpha-2,3-sialyltransferase.
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The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
st3gal, alpha-2,3-sialyltransferase, alpha 2,3-st, beta-galactoside alpha-2,3-sialyltransferase, st3gala.1, beta-galactoside alpha-2,3-sialyltransferase 1, galbeta1,3galnac alpha2,3-sialyltransferase, siatfl, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
CMP-N-acetylneuraminate + beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl-R = CMP + alpha-N-acetylneuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl-R
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