FB2026_03 , released September 17, 2026
CV Term Report
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Term zone E Johnston organ neuron ID (Ontology) FBbt:00100021 (Fly Anatomy)
Definition Johnston's organ neuron that innervates zone E of the antennal mechanosensory and motor center (AMMC). The cell bodies of these neurons are co-mingled with those of zone C Johnston organ neurons, forming a broad ring mainly in the medial and outer layers of the Johnston's organ. Some of these neurons show a tonic response to static deflections of the arista (Kamikouchi et al., 2009) and are involved in sensing air-flow (Yorozu et al., 2009) and gravitational forces (Kamikouchi et al., 2009). They tend to have greater responses when the arista is displaced posteriorly, corresponding to air flow applied to the front of the head (Yorozu et al., 2009). Some of these neurons elicit antennal grooming (Hampel et al., 2015; Hampel et al., 2020).[ FlyBase:FBrf0194812 FlyBase:FBrf0207518 FlyBase:FBrf0207559 FlyBase:FBrf0229838 FlyBase:FBrf0247223 ]
Also Known As"JO-E" ; "JO-E neuron" ; "Johnston organ neuron activated by tonic posterior arista deflection" (for all, see Synonyms field below)
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VFB:FBbt_00100021
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Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 zone E Johnston organ neuron (all annotations which use CV term, excluding "NOT" statements)
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adult antennal sensory neuron__
adult cholinergic neuron_______|
adult chordotonal neuron_______|
                               Johnston organ neuron
                                |__zone E Johnston organ neuron  27 rec.
                                    |__Johnston organ neuron e1
                                    |__Johnston organ neuron e2
                                    |__Johnston organ neuron EDC
                                    |__Johnston organ neuron EDM
                                    |__Johnston organ neuron EDP
                                    |   |__Johnston organ neuron e4
                                    |__Johnston organ neuron EV
                                    |__Johnston organ neuron EVL
                                    |__Johnston organ neuron EVM
                                    |__Johnston organ neuron EVP
                                    |__zone C/E Johnston organ neuron 15 rec.
                                        |__Johnston organ neuron f1
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VFB:FBbt_00100021