FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term t-bar ID (Ontology) FBbt:00005117 (Fly Anatomy)
Definition T-shaped density that is found in the presynaptic region of a neuron.[ FlyBase:FBrf0232028 ]
Also Known As"T bar" ; "T-bar"
Comment
Links to External Ontologies
VFB:FBbt_00005117
Annotations
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Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Insertions Constructs
 t-bar (all annotations which use CV term, excluding "NOT" statements)
     t-bar | absent | larval stage
      --       --
     t-bar | larval stage
      --       --
     t-bar | somatic clone
      --       --
     t-bar | third instar larval stage
      --
Spanning Tree (Parents/Children)
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 |__bouton____________
anatomical structure  |
 |__cell component____|
cell component        |
 |__bouton____________|
                      t-bar  59 rec.
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Is a cell component
Part of bouton
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Synonyms
  • "T bar" EXACT
    "T-bar" EXACT
Secondary IDs
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GO:0098986
VFB:FBbt_00005117