Glycosaminoglycan galactosyltransferase

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In enzymology, a glycosaminoglycan galactosyltransferase (EC is an enzyme that catalyzes the chemical reaction

UDP-galactose + glycosaminoglycan UDP + D-galactosylglycosaminoglycan

Thus, the two substrates of this enzyme are UDP-galactose and glycosaminoglycan, whereas its two products are UDP and D-galactosylglycosaminoglycan.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-galactose:glycosaminoglycan D-galactosyltransferase. This enzyme is also called uridine diphosphogalactose-mucopolysaccharide galactosyltransferase.


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  • Sussman M and Osborn MJ (1964). "UDP-glucose polysaccharide transferase in the cellular slime mold Dictyostelium discoideum: appearance and dissappearance of activity during cell differentiation". Proc. Natl. Acad. Sci. USA. 52: 81&ndash, 87.

External links

The CAS registry number for this enzyme class is 51004-28-5.

Gene Ontology (GO) codes