FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term presynapse ID (Ontology) GO:0098793 (Gene Ontology)
Definition The part of a synapse that is part of the presynaptic cell.
Also Known As "presynaptic terminal"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Genes (FBgn)  GO_CELLULAR_COMPONENT      15
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Constructs
 presynapse (all annotations which use CV term, excluding "NOT" statements)       --      17       --
     is_active_in | presynapse       --       6       --
     located_in | presynapse       --       9       --
     presynapse | adult stage       4       --       2
     presynapse | adult stage | conditional       4       --       3
     presynapse | adult stage | decreased number       8       --       3
     presynapse | adult stage | ectopic       1       --       --
     presynapse | adult stage | progressive       1       --       --
     presynapse | ectopic | pupal stage       1       --       --
     presynapse | heat sensitive       1       --       --
     presynapse | larval stage       1       --       --
Spanning Tree (Parents/Children)
Only view relationship:
  cellular_component
   |__cellular anatomical structure
       |__presynapse  545 rec.
           |__axon terminus 278 rec.
           |   |__calyx of Held
           |   |__cone cell pedicle
           |   |__Herring body
           |   |__vestibular calyx terminal
           |__terminal bouton 240 rec.
               |__C bouton
               |__F bouton
               |__hippocampal mossy fiber expansion
               |__multiple synapse bouton(+)
               |__photoreceptor cell terminal bouton
               |__rod bipolar cell terminal bouton
               |__S bouton 1 rec.
               |__type I terminal bouton(+) 107 rec.
               |__type II terminal bouton 13 rec.
               |__type III terminal bouton 2 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a cellular anatomical structure
Part of synapse
hide Synonyms & Secondary IDs
Synonyms
  • "presynaptic terminal" EXACT
Secondary IDs
hide External Crossreferences & Linkouts