FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term acetylgalactosaminyltransferase activity ID (Ontology) GO:0008376 (Gene Ontology)
Definition Catalysis of the transfer of an N-acetylgalactosaminyl residue from UDP-N-acetyl-galactosamine to an oligosaccharide.[ ISBN:0198506732 ]
Also Known As"GalNAc transferase activity"
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Genes (FBgn)GO_MOLECULAR_FUNCTION
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 acetylgalactosaminyltransferase activity (all annotations which use CV term, excluding "NOT" statements)
     enables | acetylgalactosaminyltransferase activity       --
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glycosyltransferase activity
 |__UDP-glycosyltransferase activity__
 |__hexosyltransferase activity_______|
                                      acetylgalactosaminyltransferase activity  24 rec.
                                       |__(N-acetylneuraminyl)-galactosylglucosylceramide N-acetylgalactosaminyltransferase activity
                                       |__alpha-1,4-N-acetylgalactosaminyltransferase activity 3 rec.
                                       |__galactosylgalactosylglucosylceramide beta-D-acetylgalactosaminyltransferase activity
                                       |__globoside alpha-N-acetylgalactosaminyltransferase activity
                                       |__glucuronosyl-N-acetylgalactosaminyl-proteoglycan 4-beta-N-acetylgalactosaminyltransferase activity 4 rec.
                                       |__glucuronylgalactosylproteoglycan 4-beta-N-acetylgalactosaminyltransferase activity 1 rec.
                                       |__glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase activity
                                       |__N-acetyl-beta-glucosaminyl-derivative 4-beta-N-acetylgalactosaminyltransferase activity 3 rec.
                                       |__N-acetylneuraminylgalactosylglucosylceramide beta-1,4-N-acetylgalactosaminyltransferase activity
                                       |__polypeptide N-acetylgalactosaminyltransferase activity 13 rec.
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Is a UDP-glycosyltransferase activity
hexosyltransferase activity
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Synonyms
  • "GalNAc transferase activity" EXACT
Secondary IDs
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Reactome:R-HSA-8855954 "B4GALNT2 transfers GalNAc from UDP-GalNAc to Sial-Gal-GlcNAc-Gal to form the Sd(a) antigen on UMOD"
Reactome:R-HSA-8931648 "B3GALNT2 transfers GalNAc to GlcNAc-Man-DAG1"
Reactome:R-HSA-9605700 "B4GALNT2 transfers GalNAc to Type 2 MSGG to form Sda"