FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

peptide-O-fucosyltransferase activity

ID (Ontology)

GO:0046922 (Gene Ontology)

Definition

Catalysis of the transfer of an alpha-L-fucosyl residue from GDP-beta-L-fucose to the serine hydroxy group of a protein acceptor.[ EC:2 ]

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_MOLECULAR_FUNCTION

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes
peptide-O-fucosyltransferase activity (all annotations which use CV term, excluding "NOT" statements)
enables \| peptide-O-fucosyltransferase activity

Spanning Tree (Parents/Children)

catalytic activity
 |__catalytic activity, acting on a protein__
hexosyltransferase activity                  |
 |__fucosyltransferase activity______________|
                                             peptide-O-fucosyltransferase activity  2 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	fucosyltransferase activity catalytic activity, acting on a protein
Part of
Synonyms & Secondary IDs
Synonyms
	"GDP-beta-L-fucose:polypeptide O-alpha-L-fucosyltransferase activity" RELATED[ EC:2 ] "GDP-fucose protein O-fucosyltransferase activity" RELATED[ EC:2 ] "GDP-fucose:polypeptide fucosyltransferase activity" RELATED[ EC:2 ] "GDP-L-fucose:polypeptide fucosyltransferase activity" RELATED[ EC:2 ]
Secondary IDs

External Crossreferences & Linkouts
	EC:2.4.1.221 MetaCyc:2.4.1.221-RXN Reactome:R-HSA-1912349 "Fucosylation of Pre-NOTCH by POFUT1" Reactome:R-HSA-5173192 "POFUT2 transfers fucose to TSR domain-containing proteins"