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WormBase Tree Display for GO_term: GO:0071012

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Name Class

GO:0071012Namecatalytic step 1 spliceosome
DefinitionA spliceosomal complex that is formed by the displacement of the two snRNPs from the precatalytic spliceosome; three snRNPs including U5 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 associated snRNPs.
SynonymExactactivated spliceosome
Narrowmammalian spliceosomal complex B*
mammalian spliceosomal complex B2
yeast spliceosomal complex A1
StatusValid
TypeCellular_component
ChildInstanceGO:0071006
GO:0071017
ParentInstance_ofGO:0005681
GO:1902494
Attributes_ofIndexAncestor (13)
DescendantGO:0071006
GO:0071017
VersionGene Ontology releases/2023-11-15