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ZIRC
OBO ID: GO:0015030
Term Name: Cajal body Search Ontology:
Synonyms:
  • coiled body
  • Gemini of coiled bodies
  • Gems
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. (3)
References:
Ontology: GO: Cellular Component   QuickGO   AmiGO
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