Term Information

Accession
GO:0071006
Name
U2-type catalytic step 1 spliceosome
Ontology
cellular_component
Synonyms
U2-type activated spliceosome, major catalytic step 1 spliceosome, GT-AG catalytic step 1 spliceosome, mammalian U2-type spliceosomal complex B*, mammalian U2-type spliceosomal complex B2, yeast U2-type spliceosomal complex A1
Alternate IDs
None
Definition
A spliceosomal complex that is formed by the displacement of the U1 and U4 snRNPs from the precatalytic spliceosome; the U2, U5 and U6 snRNPs remain associated with the mRNA. This complex, sometimes called the activated spliceosome, is the catalytically active form of the spliceosome, and includes many proteins in addition to those found in the U2, and U5 and U6 snRNPs. Source: GOC:krc, PMID:19239890, GOC:ab, ISBN:0879695897, GOC:mah, PMID:18322460, ISBN:0879697393
Comment
None
History
See term history for GO:0071006 at QuickGO
Subset
None
Feedback
Comments, changes to terms, or requests for new ontology terms can be made at GO issue tracker on GitHub.

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Parents of U2-type catalytic step 1 spliceosome (GO:0071006)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
U2-type catalytic step 1 spliceosome [BFO:0000051 relation] BFO:0000051  U6 snRNP (GO:0005688)
U2-type catalytic step 1 spliceosome [is_a relation] is_a  catalytic step 1 spliceosome (GO:0071012)
U2-type catalytic step 1 spliceosome [BFO:0000051 relation] BFO:0000051  U2 snRNP (GO:0005686)
U2-type catalytic step 1 spliceosome [is_a relation] is_a  U2-type spliceosomal complex (GO:0005684)

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None.