FB2026_03 , released September 17, 2026
CV Term Report
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Term generation of catalytic spliceosome for first transesterification step ID (Ontology) GO:0000349 (Gene Ontology)
Definition Formation of a catalytic spliceosome complex ready to perform the first splicing reaction. This occurs by an ATP-dependent conformational change of the pre-catalytic spliceosome.[ ISBN:0879695897 ]
Also Known As"formation of catalytic spliceosome for first transesterification step"
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Genes (FBgn)GO_BIOLOGICAL_PROCESS
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 generation of catalytic spliceosome for first transesterification step (all annotations which use CV term, excluding "NOT" statements)
     involved_in | generation of catalytic spliceosome for first transesterification step
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mRNA splicing, via spliceosome
 |__spliceosomal conformational changes to generate catalytic conformation__
ribonucleoprotein complex biogenesis                                        |
 |__protein-RNA complex assembly____________________________________________|
protein-RNA complex assembly                                                |
 |__spliceosomal conformational changes to generate catalytic conformation__|
protein-containing complex assembly                                         |
 |__protein-RNA complex assembly____________________________________________|
protein-RNA complex organization                                            |
 |__protein-RNA complex assembly____________________________________________|
                                                                            generation of catalytic spliceosome for first transesterification step  1 rec.
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Is a protein-RNA complex assembly
Part of spliceosomal conformational changes to generate catalytic conformation
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Synonyms
  • "catalytic spliceosome assembly for first transesterification step" RELATED
    "formation of catalytic spliceosome for first transesterification step" EXACT
    "spliceosomal A2-2 complex biosynthesis" NARROW
    "spliceosomal A2-2 complex formation" NARROW
    "spliceosomal C1 complex biosynthesis" NARROW
    "spliceosomal C1 complex formation" NARROW
    "U12-type catalytic spliceosome formation for first transesterification step" NARROW
    "U2-type catalytic spliceosome formation for first transesterification step" NARROW
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