FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term perinucleolar compartment ID (Ontology) GO:0097356 (Gene Ontology)
Definition The perinucleolar compartment (PNC) is a subnuclear structure associated with, but structurally distinct from, the nucleolus. The PNC contains large amounts of the heterogeneous nuclear ribonucleoprotein complex (hnRNP) called hnRNP 1 (PTB). Many RNA binding proteins as well as RNA polymerase III transcripts are highly enriched in this compartment. PTB and pol III transcripts are required for the integrity of the PNC.[ PubMed:21385875 ]
Also Known As "perinucleolar region"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available
Spanning Tree (Parents/Children)
Only view relationship:
  cellular_component
   |__cellular anatomical structure
       |__perinucleolar compartment
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a cellular anatomical structure
Part of nuclear lumen
hide Synonyms & Secondary IDs
Synonyms
  • "perinucleolar region" EXACT
Secondary IDs
hide External Crossreferences & Linkouts