FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term catalytic step 2 spliceosome ID (Ontology) GO:0071013 (Gene Ontology)
Definition A spliceosomal complex that contains three snRNPs, including U5, 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 associated snRNPs.[ ISBN:0879695897 ISBN:0879697393 PubMed:18322460 PubMed:19239890 ]
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Data ClassFieldDirect annotations
Genes (FBgn)GO_BIOLOGICAL_PROCESS
Genes (FBgn)GO_CELLULAR_COMPONENT
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 catalytic step 2 spliceosome (all annotations which use CV term, excluding "NOT" statements)
     part_of | catalytic step 2 spliceosome
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protein-containing complex
 |__catalytic complex_______________
nuclear protein-containing complex  |
 |__spliceosomal complex____________|
ribonucleoprotein complex           |
 |__spliceosomal complex____________|
                                    catalytic step 2 spliceosome  124 rec.
                                     |__U2-type catalytic step 2 spliceosome 6 rec.
                                     |__U12-type catalytic step 2 spliceosome
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Is a spliceosomal complex
catalytic complex
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Synonyms
  • "mammalian spliceosomal complex C" NARROW[ ISBN:0879695897 ISBN:0879697393 PubMed:19239890 ]
    "mammalian spliceosomal complex C1" NARROW[ ISBN:0879695897 ISBN:0879697393 ]
    "yeast spliceosomal complex A2-2" NARROW[ ISBN:0879695897 ISBN:0879697393 ]
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