FB2025_05 , released December 11, 2025

CV Term Report

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General Information
Term	stereocilium bundle	ID (Ontology)	GO:0032421 (Gene Ontology)
Definition	A bundle of cross-linked stereocilia, arranged around a kinocilium on the apical surface of a sensory hair cell (e.g. a neuromast, auditory or vestibular hair cell). Stereocilium bundles act as mechanosensory organelles by responding to fluid motion or fluid pressure changes.[ PubMed:15661519 PubMed:7840137 ]
Also Known As	"stereocilia bundle"
Comment
Links to External Ontologies
	QuickGO data AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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Spanning Tree (Parents/Children)

  cellular anatomical structure
   |__cluster of actin-based cell projections
       |__stereocilium bundle  3 rec.
           |__kinocilium 1 rec.
           |   |__kinociliary basal body 1 rec.
           |__stereocilia coupling link 2 rec.
           |   |__stereocilia ankle link(+) 2 rec.
           |   |__stereocilia tip link(+)
           |__stereocilium 2 rec.
               |__actin filament bundle of stereocilium
               |__stereocilium base
               |__stereocilium coat
               |__stereocilium membrane
               |__stereocilium shaft
               |__stereocilium tip 2 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	cluster of actin-based cell projections
Part of
Synonyms & Secondary IDs
Synonyms
	"stereocilia bundle" EXACT
Secondary IDs

External Crossreferences & Linkouts