FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

apical constriction

ID (Ontology)

GO:0003383 (Gene Ontology)

Definition

The actin-mediated process that results in the contraction of the apical end of a polarized columnar epithelial cell.

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_BIOLOGICAL_PROCESS

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
apical constriction (all annotations which use CV term, excluding "NOT" statements)
acts_upstream_of_positive_effect \| apical constriction
involved_in \| apical constriction

Spanning Tree (Parents/Children)

cell morphogenesis
 |__epithelial cell morphogenesis____
epithelial cell development          |
 |__epithelial cell morphogenesis____|
actin filament-based movement        |
 |__actin-mediated cell contraction__|
                                     apical constriction  27 rec.
                                      |__apical constriction involved in gastrulation 12 rec.
                                          |__apical constriction involved in ventral furrow formation(+) 5 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	actin-mediated cell contraction
Part of	epithelial cell morphogenesis
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts