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  • 48279 - β-1,4-Galactosyl Transferase from bovine milk

48279 Sigma

β-1,4-Galactosyl Transferase from bovine milk

≥0.6 U/mg

Synonym: Lactose Synthase



Other Notes

Galactosyltransferases, physical, chemical and biological aspects

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Unit Definition

1 U correspond to the amount of enzyme which transfers 1 μmol galactose from UDP-galactose to D-glucose per minute at pH 8.4 and 30°C in the presence of α-lactalbumin

Biochem/physiol Actions

β-1,4-Galactosyl Transferase catalyzes the transfer of galactose from UDP-galactose to the terminal N-acetylglucosamine residues on elongating oligosaccharide chains. It is also considered to be a biosynthetic enzyme of the Golgi apparatus. β-1,4-Galactosyl Transferase can also be found on the cell surface functioning as a cell-adhesion molecule during various cellular interactions by binding to N-acetylglucosamine containing oligosaccharide substrates or ligands in the extracellular matrix.

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Amplified Detection

All labs need water

Biomedical Applications
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Safety Information

WGK Germany 
Protocols & Articles


Glycosyltransferases: Tools for Synthesis and Modification of Glycans

The presence of multiple functional groups and stereocenters in complex carbohydrates makes them challenging targets for the organic chemist. Chemical synthesis research has not yielded robust, autom...
BioFiles 2007, 2.1, 2.
Keywords: Acylations, Bacterial conjugations, Biochemistry, Catalysis, Enzyme activity, Fucosylation, Gene expression, Glycosylations, Methods, Organic synthesis, Protocols, Sequences, Solvents, Type


Glycosyltransferases are specific for the type of linkage (α or β), and the linkage position of the glycoside bond formed [e.g. α(1→3) or β(1→4)]. Glycosyltransferases were initially considered to be...
Glycobiology Analysis Manual, 2nd Edition
Keywords: Catalysis, Cell signaling, Enzyme activity, Glycosylations, Pharmaceutical, Type

β-(1—>4)-Galactosyltransferase Kit

β(1→4) Galactosyltransferase from bovine milk (GalT, EC is one of the most extensively studied mammalian glycosyltransferases with regard to synthesis and substrate specificity.[1-5, 9-15] ...
ChemFiles Volume 3 Article 6
Keywords: Biochemistry, Capabilities, Catalysis, Fucosylation, Glycosylations, Organic synthesis, Solvents

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

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