FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
CV Term Report
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General Information
Term U2-type prespliceosome ID (Ontology) GO:0071004 (Gene Ontology)
Definition A spliceosomal complex that is formed by association of the 5' splice site with the U1 snRNP, while the branch point sequence is recognized by the U2 snRNP. The prespliceosome includes many proteins in addition to those found in the U1 and U2 snRNPs. Commitment to a given pair of 5' and 3' splice sites occurs at the time of prespliceosome formation.[ PubMed:17332742 PubMed:19239890 ]
Also Known As "major prespliceosome"
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Genes (FBgn)GO_CELLULAR_COMPONENT
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 U2-type prespliceosome (all annotations which use CV term, excluding "NOT" statements)
     part_of | U2-type prespliceosome       --
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spliceosomal complex
 |__U2-type spliceosomal complex__
 |__prespliceosome________________|
                                  U2-type prespliceosome  15 rec.
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Is a U2-type spliceosomal complex
prespliceosome
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Synonyms
  • "GT-AG prespliceosome" NARROW
    "major prespliceosome" EXACT
    "mammalian U2-type spliceosomal complex A" NARROW[ ISBN:0879695897 ISBN:0879697393 PubMed:19239890 ]
    "yeast U2-type spliceosomal complex B" NARROW[ ISBN:0879695897 ISBN:0879697393 ]
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