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Term Information

Accession
GO:0004653
Name
polypeptide N-acetylgalactosaminyltransferase activity
Ontology
molecular_function
Synonyms
UDP-GalNAc:polypeptide N-acetylgalactosaminyl transferase activity, UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase activity, UDP-N-acetyl-D-galactosamine:polypeptide N-acetylgalactosaminyl-transferase activity, UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 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, UDP-acetylgalactosamine-glycoprotein acetylgalactosaminyltransferase activity, UDP-acetylgalactosamine:peptide-N-galactosaminyltransferase activity, glycoprotein acetylgalactosaminyltransferase activity, polypeptide-N-acetylgalactosamine transferase activity, protein-UDP acetylgalactosaminyltransferase activity, uridine diphosphoacetylgalactosamine-glycoprotein acetylgalactosaminyltransferase activity
Alternate IDs
None
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. Source: ISBN:0879695595, EC:2.4.1.41
Comment
None
History
See term history for GO:0004653 at QuickGO
Subset
None
Feedback
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Parents of polypeptide N-acetylgalactosaminyltransferase activity (GO:0004653)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
polypeptide N-acetylgalactosaminyltransferase activity [is_a relation] is_a  catalytic activity, acting on a protein (GO:0140096)
polypeptide N-acetylgalactosaminyltransferase activity [is_a relation] is_a  acetylgalactosaminyltransferase activity (GO:0008376)

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