FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term T-tubule ID (Ontology) GO:0030315 (Gene Ontology)
Definition Invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. The ends of T-tubules make contact with the sarcoplasmic reticulum membrane.[ ISBN:0815316194 ]
Also Known As "transverse tubule"
Comment
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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       3
Genes (FBgn)  GO_CELLULAR_COMPONENT       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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Relevant FlyBase reports
 Alleles Genes Constructs
 T-tubule (all annotations which use CV term, excluding "NOT" statements)       3      3      2
     located_in | T-tubule       --       3       --
     T-tubule | adult stage       3       --       1
     T-tubule | third instar larval stage       5       --       5
     T-tubule | third instar larval stage | heat sensitive       5       --       5
Spanning Tree (Parents/Children)
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  cellular_component
   |__cellular anatomical structure
       |__T-tubule  8 rec.
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Is a cellular anatomical structure
Part of sarcolemma
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Synonyms
  • "transverse tubule" EXACT
    "triad" RELATED
Secondary IDs
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Wikipedia:T-tubule