FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term protein O-linked glycosylation via N-acetyl-galactosamine ID (Ontology) GO:0016266 (Gene Ontology)
Definition A glycoprotein biosynthetic process starting with the covalent linkage of an N-acetyl-galactosamine via an alpha-glycosidic bond to the oxygen atom of a serine or threonine side chain in a protein, which can be further elongated with the sequential addition of sugar units resulting in the formation of a protein O-linked glycan.[ PubMed:10580130 PubMed:35536936 ]
Also Known As "core O-glycan biosynthetic process" ; "O-glycan processing"
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Data Class Field Records
Genes (FBgn)  GO_BIOLOGICAL_PROCESS      17
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 Full annotation statements 
Relevant FlyBase reports
 Gene Groups Genes
 protein O-linked glycosylation via N-acetyl-galactosamine (all annotations which use CV term, excluding "NOT" statements)       2     17
     involved_in | protein O-linked glycosylation via N-acetyl-galactosamine       --      17
Spanning Tree (Parents/Children)
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  glycoprotein biosynthetic process
   |__protein O-linked glycosylation
       |__protein O-linked glycosylation via N-acetyl-galactosamine  19 rec.
           |__keratan sulfate-II proteoglycan biosynthetic process
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Is a protein O-linked glycosylation
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Synonyms
  • "core O-glycan biosynthetic process" EXACT
    "mucin-type O-glycan synthesis" NARROW
    "O-glycan processing" EXACT
    "protein O-linked GalNAcylation" RELATED
Secondary IDs
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Reactome:R-HSA-913709 "O-linked glycosylation of mucins"