FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

prominosome

ID (Ontology)

GO:0071914 (Gene Ontology)

Definition

An extracellular membrane-bounded vesicle that contains prominin proteins (in mouse Prom1/CD33 or Prom2) and are found in body fluids including ventricular fluid, saliva, urine and seminal fluid. In the ventricular fluid of the developing mouse brain two major classes of these particles have been observed (P2 particles of 500-1000 nm and P4 particles of 50-80 nm) which likely originate from microvilli, primary cilia and/or the midbody of neuroepithelial cells. The physiological role is not known.[ PubMed:15976444 PubMed:17109118 PubMed:17283184 ]

Also Known As

"prominin-containing extracellular membrane vesicle"

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

Data Class	Field	Direct annotations
Genes (FBgn)	GO_CELLULAR_COMPONENT

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	Genes
prominosome (all annotations which use CV term, excluding "NOT" statements)
is_active_in \| prominosome

Spanning Tree (Parents/Children)

vesicle___________________________________
extracellular membrane-bounded organelle__|
                                          extracellular vesicle
                                           |__prominosome  2 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	extracellular vesicle
Part of
Synonyms & Secondary IDs
Synonyms
	"prominin-containing extracellular membrane vesicle" EXACT
Secondary IDs

External Crossreferences & Linkouts