FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

U2-type spliceosomal complex

ID (Ontology)

GO:0005684 (Gene Ontology)

Definition

Any spliceosomal complex that forms during the splicing of a messenger RNA primary transcript to excise an intron that has canonical consensus sequences near the 5' and 3' ends.[ PubMed:11343900 ]

Also Known As

"major (U2-type) spliceosomal complex" ; "major spliceosomal complex"

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_CELLULAR_COMPONENT

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
U2-type spliceosomal complex (all annotations which use CV term, excluding "NOT" statements)
part_of \| U2-type spliceosomal complex

Spanning Tree (Parents/Children)

nuclear protein-containing complex__
ribonucleoprotein complex___________|
                                    spliceosomal complex
                                     |__U2-type spliceosomal complex  39 rec.
                                         |__commitment complex 5 rec.
                                         |__U2-type catalytic step 1 spliceosome 3 rec.
                                         |__U2-type catalytic step 2 spliceosome 6 rec.
                                         |__U2-type post-mRNA release spliceosomal complex 2 rec.
                                         |__U2-type post-spliceosomal complex 2 rec.
                                         |__U2-type precatalytic spliceosome 1 rec.
                                         |__U2-type prespliceosome 15 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	spliceosomal complex
Part of
Synonyms & Secondary IDs
Synonyms
	"GT-AG spliceosome" NARROW "major (U2-type) spliceosomal complex" EXACT "major spliceosomal complex" EXACT
Secondary IDs

External Crossreferences & Linkouts