OBO ID: GO:0004653
Term Name: polypeptide N-acetylgalactosaminyltransferase activity Search Ontology:
Synonyms:
  • glycoprotein acetylgalactosaminyltransferase activity
  • polypeptide-N-acetylgalactosamine transferase activity
  • protein-UDP acetylgalactosaminyltransferase activity
  • UDP-acetylgalactosamine-glycoprotein acetylgalactosaminyltransferase activity
  • UDP-acetylgalactosamine:peptide-N-galactosaminyltransferase activity
  • UDP-GalNAc:polypeptide N-acetylgalactosaminyl transferase activity
  • UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase activity
  • UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase activity
  • UDP-N-acetyl-D-galactosamine:polypeptide N-acetylgalactosaminyl-transferase activity
  • UDP-N-acetylgalactosamine-glycoprotein N-acetylgalactosaminyltransferase activity
  • UDP-N-acetylgalactosamine-protein N-acetylgalactosaminyltransferase activity
  • UDP-N-acetylgalactosamine:kappa-casein polypeptide N-acetylgalactosaminyltransferase activity
  • UDP-N-acetylgalactosamine:polypeptide N-acetylgalactosaminyltransferase activity
  • UDP-N-acetylgalactosamine:protein N-acetylgalactosaminyl transferase activity
  • uridine diphosphoacetylgalactosamine-glycoprotein acetylgalactosaminyltransferase activity
Definition: Catalysis of the reaction: UDP-N-acetyl-D-galactosamine + polypeptide = UDP + N-acetyl-D-galactosaminyl-polypeptide. This reaction is the modification of serine or threonine residues in polypeptide chains by the transfer of a N-acetylgalactose from UDP-N-acetylgalactose to the hydroxyl group of the amino acid; it is the first step in O-glycan biosynthesis. (2)
References:
  • EC:2.4.1.41
  • MetaCyc:2.4.1.41-RXN
  • Reactome:R-HSA-5096532
  • Reactome:R-HSA-5096537
  • Reactome:R-HSA-8851619
  • Reactome:R-HSA-913675
  • Reactome:R-HSA-9683760
  • Reactome:R-HSA-9694438
Ontology: GO: Molecular Function    QuickGO    AmiGO
PHENOTYPE No data available