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Catalysis of the transfer of a galactose group from UDP-galactose to an acceptor molecule. Catalysis of the reaction: UDP-galactose + D-glucose = UDP + lactose. 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.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: lactose synthase activity
Acc: GO:0004461
Aspect: Molecular Function
Desc: Catalysis of the reaction: UDP-galactose + D-glucose = UDP + lactose.
Synonyms:
  • uridine diphosphogalactose-glucose galactosyltransferase activity
  • UDP-galactose:D-glucose 4-beta-D-galactotransferase activity
  • UDP-galactose-glucose galactosyltransferase activity
  • UDPgalactose:D-glucose 4-beta-D-galactotransferase activity
  • UDPgalactose-glucose galactosyltransferase activity
  • lactose synthetase activity
Proteins in PDR annotated with:
   This term: 5 [Search]
   Term or descendants: 5 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0004461 - lactose synthase activity (interactive image map)
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Created and Maintained by: Michael Riffle