ORN_VM1 [FBbt_00110012]

Adult olfactory receptor neuron that expresses the Ionotropic receptor (Ir) 92a and the co-receptors Ir25a and Ir76b (Benton et al., 2025). Its axon innervates antennal lobe glomerulus VM1, bilaterally, fasciculating with the antennal lobe commissure (Silbering et al., 2011; Kaur et al., 2019). Its dendrite transduces signals from antennal coeloconic sensillum ac1 (Benton et al., 2009) and it responds to ammonia (Min et al., 2013). It develops from an Nba precursor (Benton et al., 2025). There are approximately 15 of these cells on each side (Grabe et al., 2016).
ORN_VM1 ORN_VM1 ORN_VM1 ORN_VM1

ORN_VM1

ID: FBbt_00110012

Adult Nervous system Olfactory system Sensory neuron

Adult olfactory receptor neuron that expresses the Ionotropic receptor (Ir) 92a and the co-receptors Ir25a and Ir76b (Benton et al., 2025). Its axon innervates antennal lobe glomerulus VM1, bilaterally, fasciculating with the antennal lobe commissure (Silbering et al., 2011; Kaur et al., 2019). Its dendrite transduces signals from antennal coeloconic sensillum ac1 (Benton et al., 2009) and it responds to ammonia (Min et al., 2013). It develops from an Nba precursor (Benton et al., 2025). There are approximately 15 of these cells on each side (Grabe et al., 2016).

Open in VFB 3D Browser →
## Classification

Relationships

Alternative Names

Synonym Scope Reference
ORN ac1 broad synonym Benton et al., 2009
Ir92a ac1 exact synonym Benton et al., 2009
adult olfactory receptor neuron Ir76b/92a exact synonym
ORN_VM1 exact synonym
ionotropic receptor neuron Ir92a exact synonym
ORN_VM1 exact synonym Bates et al., 2025
ORN (VM1) exact synonym 10437
ORN_VM1 exact synonym Berg et al., 2025
ORN ac1B exact synonym Nava Gonzales et al., 2021
ORN_VM1 exact synonym Scheffer et al., 2020
ORN_VM1 exact synonym Schlegel et al., 2024
ORN Ir92a exact synonym
ORN ac1X exact synonym Menuz et al., 2014

List all available images of ORN_VM1 (179 total)

Thumbnail Name Tags
ORN_VM1_L (MaleCNS:220062) Nervous_system, Sensory_neuron, Olfactory_system, Adult, Cholinergic
ORN_VM1_R (MaleCNS:202124) Nervous_system, Sensory_neuron, Olfactory_system, Adult, Cholinergic
ORN_VM1_R (MaleCNS:206959) Nervous_system, Sensory_neuron, Olfactory_system, Adult, Cholinergic
ORN_VM1_R (MaleCNS:215507) Nervous_system, Sensory_neuron, Olfactory_system, Adult, Cholinergic
ORN_VM1_R (MaleCNS:215507) Nervous_system, Sensory_neuron, Olfactory_system, Adult, Cholinergic

View all 179 results in VFB →

Downstream connectivity classes for ORN_VM1 (38 total)

Thumbnail Name Tags

View all 38 results in VFB →

Upstream connectivity classes for ORN_VM1 (18 total)

Thumbnail Name Tags

View all 18 results in VFB →