FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

ubiquitin conjugating enzyme activity

ID (Ontology)

GO:0061631 (Gene Ontology)

Definition

Isoenergetic transfer of ubiquitin from one protein to another via the reaction X-ubiquitin + Y = Y-ubiquitin + X, where both the X-ubiquitin and Y-ubiquitin linkages are thioester bonds between the C-terminal glycine of ubiquitin and a sulfhydryl side group of a cysteine residue.

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
ubiquitin conjugating enzyme activity (all annotations which use CV term, excluding "NOT" statements)
enables \| ubiquitin conjugating enzyme activity	--
NOT \| enables \| ubiquitin conjugating enzyme activity	--

Spanning Tree (Parents/Children)

ubiquitin-like protein transferase activity
 |__ubiquitin-protein transferase activity______________
 |__ubiquitin-like protein conjugating enzyme activity__|
                                                        ubiquitin conjugating enzyme activity  28 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	ubiquitin-protein transferase activity ubiquitin-like protein conjugating enzyme activity
Part of
Synonyms & Secondary IDs
Synonyms
	"E2" BROAD "HECT E3" RELATED
Secondary IDs

External Crossreferences & Linkouts
	EC:2.3.2.23 EC:2.3.2.24 EC:2.3.2.25