FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term contractile ring ID (Ontology) GO:0070938 (Gene Ontology)
Definition A cytoskeletal structure composed of filamentous protein that forms beneath the membrane of many cells or organelles, in the plane of cell or organelle division. Ring contraction is associated with centripetal growth of the membrane that divides the cytoplasm of the two daughter cells or organelles.[ ISBN:0123645859 ISBN:0792354923 PubMed:10791428 PubMed:17913889 ]
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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)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      11
Genes (FBgn)  GO_CELLULAR_COMPONENT      16
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Constructs
 contractile ring (all annotations which use CV term, excluding "NOT" statements)      11     16      2
     colocalizes_with | contractile ring       --       9       --
     contractile ring | adult stage | male       1       --       --
     contractile ring | larval stage       1       --       --
     contractile ring | somatic clone       2       --       --
     contractile ring | spermatogenesis       2       --       2
     contractile ring | third instar larval stage       1       --       --
     is_active_in | contractile ring       --       1       --
     located_in | contractile ring       --       6       --
Spanning Tree (Parents/Children)
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  cellular_component
   |__cellular anatomical structure
       |__contractile ring  54 rec.
           |__actomyosin contractile ring 27 rec.
               |__meiotic actomyosin contractile ring(+)
               |__mitotic actomyosin contractile ring(+) 1 rec.
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Is a cellular anatomical structure
Part of
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Synonyms
  • "constriction ring" RELATED
    "cytokinetic ring" RELATED
Secondary IDs
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