FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term aristal sensory neuron VP3 ID (Ontology) FBbt:00007576 (Fly Anatomy)
Definition Adult unilateral thermosensory neuron with its sensory dendrite in an aristal sensillum and an axonal projection to antennal lobe glomerulus VP3 (Stocker et al., 1990; Alpert et al., 2020; Benton et al., 2025). It has large, elaborate sensory endings (Budelli et al., 2019). It is transiently activated by temperature decreases and transiently inhibited by temperature increases (Budelli et al., 2019). It expresses the cooling-specific Ir21a and the co-receptors Ir25a and Ir93a, with all three being required for sensitivity to cooling (Budelli et al., 2019). There are around 3-4 of these cells per hemisphere (Marin et al., 2020).[ FlyBase:FBrf0051437 FlyBase:FBrf0213085 FlyBase:FBrf0241574 FlyBase:FBrf0246007 FlyBase:FBrf0246456 FlyBase:FBrf0262710 ]
Also Known As"ArA" ; "aristal neuron (VP3)" ; "cold aristal neuron" (for all, see Synonyms field below)
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VFB:FBbt_00007576
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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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 aristal sensory neuron VP3 (all annotations which use CV term, excluding "NOT" statements)
     aristal sensory neuron VP3 | larval stage
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adult peripheral nervous system
 |__neuron of aristal sensillum_______________
adult thermosensory neuron                    |
 |__neuron of aristal sensillum_______________|
adult antennal lobe receptor neuron           |
 |__neuron of aristal sensillum_______________|
 |__unilateral antennal lobe receptor neuron__|
                                              aristal sensory neuron VP3  13 rec.
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Is a neuron of aristal sensillum
unilateral antennal lobe receptor neuron
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FlyBrain_NDB:10368
VFB:FBbt_00007576