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Catalysis of the transfer of a galactose group from UDP-galactose to an acceptor molecule. Catalysis of the transfer of a glycosyl group from a UDP-sugar to a small hydrophobic molecule. Catalysis of the transfer of a galactosyl group to an acceptor molecule, typically another carbohydrate or a lipid. Catalysis of the reaction: 4-beta-D-galactosyl-O-beta-D-xylosylprotein + UDP-galactose = 3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosylprotein + UDP.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: galactosylxylosylprotein 3-beta-galactosyltransferase activity
Acc: GO:0047220
Aspect: Molecular Function
Desc: Catalysis of the reaction: 4-beta-D-galactosyl-O-beta-D-xylosylprotein + UDP-galactose = 3-beta-D-galactosyl-4-beta-D-galactosyl-O-beta-D-xylosylprotein + UDP.
Synonyms:
  • UDP-galactose:4-beta-D-galactosyl-O-beta-D-xylosylprotein 3-beta-D-galactosyltransferase activity
  • UDPgalactose:4-beta-D-galactosyl-O-beta-D-xylosylprotein 3-beta-D-galactosyltransferase activity
  • galactosyltransferase II activity
  • uridine diphosphogalactose-galactosylxylose galactosyltransferase activity
Proteins in PDR annotated with:
   This term: 1 [Search]
   Term or descendants: 1 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0047220 - galactosylxylosylprotein 3-beta-galactosyltransferase activity (interactive image map)
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