FB2026_02 , released June 18, 2026

CV Term Report

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General Information

Term

ciliary cap

ID (Ontology)

GO:0061822 (Gene Ontology)

Definition

An intracellular compartmentalized cilium structure found in insect spermatids which is bounded by a membrane derived from the invagination of the cell membrane that remains associated with the primary cilium as it is internalized. The ciliary cap is maintained at the end of the axoneme distal to the centriole and is separated from the cytosolic axoneme/cytoplasm by a putative transition zone, which may extend into the ciliary cap, and include a structure at the base of the ciliary cap termed the ring centriole.[ PubMed:25447994 PubMed:27646273 ]

Also Known As

"spermatid ciliary cap"

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Alleles (FBal)	PHENOTYPE_MANIFEST_IN
Genes (FBgn)	GO_CELLULAR_COMPONENT
Constructs (FBtp)	PHENOTYPE_MANIFEST_IN

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Genes	Constructs
ciliary cap (all annotations which use CV term, excluding "NOT" statements)
located_in \| ciliary cap	--		--

Spanning Tree (Parents/Children)

cellular_component
 |__cellular anatomical structure________
membrane-bounded organelle               |
 |__cilium_______________________________|
plasma membrane bounded cell projection  |
 |__cilium_______________________________|
                                         ciliary cap  9 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	cellular anatomical structure
Part of	cilium
Synonyms & Secondary IDs
Synonyms
	"spermatid ciliary cap" EXACT
Secondary IDs

External Crossreferences & Linkouts