FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
CV Term Report
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General Information
Term Cajal body ID (Ontology) GO:0015030 (Gene Ontology)
Definition A class of nuclear body, first seen after silver staining by Ramon y Cajal in 1903, enriched in small nuclear ribonucleoproteins, and certain general RNA polymerase II transcription factors; ultrastructurally, they appear as a tangle of coiled, electron-dense threads roughly 0.5 micrometers in diameter; involved in aspects of snRNP biogenesis; the protein coilin serves as a marker for Cajal bodies. Some argue that Cajal bodies are the sites for preassembly of transcriptosomes, unitary particles involved in transcription and processing of RNA.[ PubMed:10944589 PubMed:11031238 PubMed:7559785 ]
Also Known As "coiled body"
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Genes (FBgn)GO_CELLULAR_COMPONENT
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Genes Constructs
 Cajal body (all annotations which use CV term, excluding "NOT" statements)
     Cajal body | larval stage
      --       --
     is_active_in | Cajal body       --
      --
     located_in | Cajal body       --
      --
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nuclear body_______________
ribonucleoprotein granule__|
                           nuclear ribonucleoprotein granule
                            |__Cajal body  42 rec.
                                |__box H/ACA scaRNP complex
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Is a nuclear ribonucleoprotein granule
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Synonyms
  • "coiled body" EXACT
    "Gemini of coiled bodies" RELATED
    "Gems" RELATED
Secondary IDs
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NIF_Subcellular:nlx_subcell_090901
Wikipedia:Cajal_body