FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term AC thermosensory neuron ID (Ontology) FBbt:00007333 (Fly Anatomy)
Definition Thermosensory neuron with its soma in the adult brain, anterior to the antennal lobe, that has no dendrites and expresses TrpA1 (Hamada et al., 2008; Shih and Chiang, 2011). It is activated by elevated temperature and is necessary for normal warmth-avoidance behavior (Hamada et al., 2008). It innervates the antennal lobe glomeruli VL2a and VL2p and the subesophageal zone, then projects obliquely towards the ipsilateral posterior superior lateral protocerebrum before branching to give extensive symmetrical arborizations in the superior medial protocerebrum in both hemispheres (Hamada et al., 2008; Shih and Chiang, 2011). It is serotonergic (Shih and Chiang, 2011).[ FlyBase:FBrf0205189 FlyBase:FBrf0213700 ]
Also Known As"AC neuron" ; "ALPN1"
CommentNeurotransmitter type was assessed by immunostaining with 5-HT (Shih and Chiang, 2011).
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VFB:FBbt_00007333
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
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 AC thermosensory neuron (all annotations which use CV term, excluding "NOT" statements)
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adult head
 |__adult brain_________________
adult central nervous system    |
 |__adult brain_________________|
brain                           |
 |__adult brain_________________|
serotonergic neuron             |
 |__adult serotonergic neuron___|
thermosensory neuron            |
 |__adult thermosensory neuron__|
adult neuron                    |
 |__adult CNS neuron____________|
adult aminergic neuron          |
 |__adult serotonergic neuron___|
adult sensory neuron            |
 |__adult thermosensory neuron__|
CNS neuron                      |
 |__adult CNS neuron____________|
                                AC thermosensory neuron  10 rec.
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Is a adult serotonergic neuron
adult thermosensory neuron
adult CNS neuron
Part of adult brain
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VFB:FBbt_00007333