FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

protein tag activity

ID (Ontology)

GO:0031386 (Gene Ontology)

Definition

A molecular function exhibited by a protein that is covalently attached (AKA tagged or conjugated) to another protein where it acts as a marker, recognized by the cellular apparatus to target the tagged protein for some cellular process such as modification, sequestration, transport or degradation.[ PubMed:19028679 PubMed:20054389 PubMed:6305978 ]

Also Known As

"protein tag" ; "ubiquitin-like protein modifier"

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

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	Gene Groups	Genes
protein tag activity (all annotations which use CV term, excluding "NOT" statements)
enables \| protein tag activity	--

Spanning Tree (Parents/Children)

  molecular_function
   |__molecular tag activity
       |__protein tag activity  21 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	molecular tag activity
Part of
Synonyms & Secondary IDs
Synonyms
	"covalent modifier" BROAD "protein tag" EXACT "protein tagging activity" RELATED "ubiquitin" RELATED "ubiquitin-like protein modifier" EXACT
Secondary IDs

External Crossreferences & Linkouts