FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term neuromuscular junction ID (Ontology) GO:0031594 (Gene Ontology)
Definition The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
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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
Alleles (FBal)  PHENOTYPE_MANIFEST_IN     276
Genes (FBgn)  GO_CELLULAR_COMPONENT      98
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      46
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      83
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 Gene Groups Genes Insertions Constructs
 neuromuscular junction (all annotations which use CV term, excluding "NOT" statements)     277      1    102     46     84
     is_active_in | neuromuscular junction       --       --      33       --       --
     located_in | neuromuscular junction       --       --      64       --       --
     neuromuscular junction | drug conditional       3       --       --       --       2
     neuromuscular junction | ectopic       8       --       --       --       1
     neuromuscular junction | embryonic stage      19       --       --       --       3
     neuromuscular junction | heat sensitive      12       --       --       --       4
     neuromuscular junction | larval stage      66       --       --       --      32
     neuromuscular junction | RU486 conditional       3       --       --       --       3
     neuromuscular junction | somatic clone       1       --       --       --       --
     neuromuscular junction | temperature conditional       3       --       --       --       --
     neuromuscular junction | third instar larval stage     104       --       --       --      58
     neuromuscular junction | third instar larval stage | heat sensitive       1       --       --       --       --
     neuromuscular junction | third instar larval stage | nutrition conditional       3       --       --       --       --
     neuromuscular junction | third instar larval stage | temperature conditional       4       --       --       --       2
Spanning Tree (Parents/Children)
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  cell junction
   |__synapse
       |__neuromuscular junction  521 rec.
           |__excitatory neuromuscular junction
           |   |__excitatory neuromuscular junction of somatic myotube
           |   |__neuromuscular junction of skeletal muscle fiber
           |__inhibitory neuromuscular junction
           |   |__inhibitory neuromuscular junction of somatic myotube
           |__neuromuscular junction of myotube
           |   |__neuromuscular junction of skeletal muscle fiber
           |   |__neuromuscular junction of somatic muscle myotube(+)
           |__neuromuscular junction of somatic muscle 3 rec.
               |__neuromuscular junction of somatic muscle myotube(+)
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Synonyms
  • "motor endplate" RELATED
    "NMJ" RELATED
Secondary IDs
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NIF_Subcellular:sao1124888485
Wikipedia:Neuromuscular_junction