FB2026_03 , released September 17, 2026
CV Term Report
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Term U2-type catalytic step 2 spliceosome ID (Ontology) GO:0071007 (Gene Ontology)
Definition A spliceosomal complex that contains the U2, U5 and U6 snRNPs bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the U2, U5 and U6 snRNPs.[ ISBN:0879695897 ISBN:0879697393 PubMed:18322460 PubMed:19239890 ]
Also Known As"major catalytic step 2 spliceosome"
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Genes (FBgn)GO_CELLULAR_COMPONENT
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 U2-type catalytic step 2 spliceosome (all annotations which use CV term, excluding "NOT" statements)
     part_of | U2-type catalytic step 2 spliceosome       --
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spliceosomal complex
 |__U2-type spliceosomal complex__
 |__catalytic step 2 spliceosome__|
catalytic complex                 |
 |__catalytic step 2 spliceosome__|
                                  U2-type catalytic step 2 spliceosome  6 rec.
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Is a U2-type spliceosomal complex
catalytic step 2 spliceosome
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Synonyms
  • "GT-AG catalytic step 2 spliceosome" NARROW
    "major catalytic step 2 spliceosome" EXACT
    "mammalian U2-type spliceosomal complex C" NARROW[ ISBN:0879695897 ISBN:0879697393 PubMed:19239890 ]
    "mammalian U2-type spliceosomal complex C1" NARROW[ ISBN:0879695897 ISBN:0879697393 ]
    "yeast U2-type spliceosomal complex A2-2" NARROW[ ISBN:0879695897 ISBN:0879697393 ]
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