Reaction catalyzed by beta-galactoside alpha-2,3-sialyltransferase (2.4.3.4) show all sequences for 2.4.3.4
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a type 3 histo-blood group antigen precursor disaccharide
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+
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CMP-N-acetyl-beta-neuraminate
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a type 3 histo-blood group antigen precursor disaccharide
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an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl-R
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CMP
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H+