FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term fibrillar center ID (Ontology) GO:0001650 (Gene Ontology)
Definition A structure found most metazoan nucleoli, but not usually found in lower eukaryotes; surrounded by the dense fibrillar component; the zone of transcription from multiple copies of the pre-rRNA genes is in the border region between these two structures.[ PubMed:10754561 ]
Also Known As "fibrillar centre"
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Spanning Tree (Parents/Children)
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cellular_component
 |__cellular anatomical structure_____
nuclear lumen                         |
 |__nucleolus_________________________|
intracellular membraneless organelle  |
 |__nucleolus_________________________|
                                      fibrillar center
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Is a cellular anatomical structure
Part of nucleolus
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Synonyms
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