FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term nucleolus organizer region ID (Ontology) GO:0005731 (Gene Ontology)
Definition A region of a chromosome where nucleoli form during interphase, and where genes encoding the largest rRNA precursor transcript are tandemly arrayed.[ PubMed:14504406 ]
Also Known As "NOR" ; "nucleolus organiser region"
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Spanning Tree (Parents/Children)
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nuclear chromosome__
chromatin___________|
nucleolus___________|
                    nucleolar chromatin
                     |__nucleolus organizer region
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Is a nucleolar chromatin
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Synonyms
  • "NOR" EXACT
    "nucleolus organiser region" EXACT
    "nucleolus organizer complex" RELATED
Secondary IDs
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Wikipedia:Nucleolus_organizer_region