Term Information

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Accession
GO:0071017
Name
U12-type catalytic step 1 spliceosome
Ontology
cellular_component
Synonyms
U12-type activated spliceosome, minor catalytic step 1 spliceosome, AT-AC catalytic step 1 spliceosome, mammalian U12-type spliceosomal complex B*, mammalian U12-type spliceosomal complex B2, yeast U12-type spliceosomal complex A1
Alternate IDs
None
Definition
A spliceosomal complex that is formed by the displacement of the U11 and U4atac snRNPs from the precatalytic spliceosome; the U12, U5 and U6atac 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 U12, and U5 and U6atac snRNPs. Source: GOC:krc, PMID:16201866, GOC:ab, ISBN:0879695897, GOC:mah, ISBN:0879697393
Comment
None
History
See term history for GO:0071017 at QuickGO
Chem. react.
None
Subset
None
Include "regulates"
For more information, please see the ontology relation documentation.

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Parents of U12-type catalytic step 1 spliceosome (GO:0071017)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
U12-type catalytic step 1 spliceosome [is_a relation] is_a  catalytic step 1 spliceosome (GO:0071012)
U12-type catalytic step 1 spliceosome [is_a relation] is_a  U12-type spliceosomal complex (GO:0005689)
U12-type catalytic step 1 spliceosome [BFO:0000051 relation] BFO:0000051  U12 snRNP (GO:0005693)
U12-type catalytic step 1 spliceosome [BFO:0000051 relation] BFO:0000051  U6atac snRNP (GO:0005691)

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