FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term cellular bud neck contractile ring ID (Ontology) GO:0000142 (Gene Ontology)
Definition A contractile ring, i.e. a cytoskeletal structure composed of actin filaments and myosin, that forms beneath the plasma membrane at the mother-bud neck in mitotic cells that divide by budding in preparation for completing cytokinesis. An example of this structure is found in Saccharomyces cerevisiae.[ PubMed:16009555 ]
Also Known As "neck ring"
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actomyosin contractile ring
 |__mitotic actomyosin contractile ring__
cellular bud                             |
 |__cellular bud neck____________________|
site of polarized growth                 |
 |__cellular bud neck____________________|
                                         cellular bud neck contractile ring
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Is a mitotic actomyosin contractile ring
Part of cellular bud neck
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