FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term Pwp2p-containing subcomplex of 90S preribosome ID (Ontology) GO:0034388 (Gene Ontology)
Definition A protein complex that forms a subcomplex of the 90S preribosome and can interact directly with the 5' External Transcribed Spacer (ETS) of the full length pre-rRNA transcript. In S. cerevisiae, it sediments at 25-30 S and is composed of Pwp2p, Dip2p, Utp21p, Utp13p, Utp18p, and Utp6p.[ PubMed:15231838 ]
Also Known As "25-30 S subcomplex of 90S preribosome" ; "UTP-B complex"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
    Results list data from multiple species. Click on a button above and use the 'Filter by species' options on the resulting HitList to retrieve species-specific data.
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Genes (FBgn)  GO_CELLULAR_COMPONENT       5
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Genes
 Pwp2p-containing subcomplex of 90S preribosome (all annotations which use CV term, excluding "NOT" statements)       5
     part_of | Pwp2p-containing subcomplex of 90S preribosome       5
Spanning Tree (Parents/Children)
Only view relationship: 
nucleus
 |__nuclear protein-containing complex__
preribosome                             |
 |__90S preribosome_____________________|
nuclear lumen                           |
 |__nucleolus___________________________|
protein-containing complex              |
 |__nuclear protein-containing complex__|
intracellular membraneless organelle    |
 |__nucleolus___________________________|
                                        Pwp2p-containing subcomplex of 90S preribosome  5 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a nuclear protein-containing complex
Part of nucleolus
90S preribosome
hide Synonyms & Secondary IDs
Synonyms
  • "25-30 S subcomplex of 90S preribosome" EXACT
    "UTP-B complex" EXACT
Secondary IDs
hide External Crossreferences & Linkouts