ORN_DM2 [FBbt_00067025]

Bilateral olfactory receptor neuron (ORN) that expresses Or22a and Or22b (Benton et al., 2025). Its dendrite transduces signals from antennal basiconic sensillum ab3 and it responds to esters (Benton et al., 2025). Its axon innervates antennal lobe glomerulus DM2, bilaterally (Benton et al., 2025). It expresses sNPF (Carlsson et al., 2010). It develops from an Nba precursor (Benton et al., 2025). There are approximately 18 of these cells on each side in males and 28 in females (Benton et al., 2025).
ORN_DM2 ORN_DM2 ORN_DM2 ORN_DM2

ORN_DM2

ID: FBbt_00067025

Adult Nervous system Olfactory system Peptidergic Sensory neuron

Bilateral olfactory receptor neuron (ORN) that expresses Or22a and Or22b (Benton et al., 2025). Its dendrite transduces signals from antennal basiconic sensillum ab3 and it responds to esters (Benton et al., 2025). Its axon innervates antennal lobe glomerulus DM2, bilaterally (Benton et al., 2025). It expresses sNPF (Carlsson et al., 2010). It develops from an Nba precursor (Benton et al., 2025). There are approximately 18 of these cells on each side in males and 28 in females (Benton et al., 2025).

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
odorant receptor neuron DM2 exact synonym
ORN_DM2 exact synonym Berg et al., 2025
adult ORN Or22a exact synonym Dobritsa et al., 2003
odorant receptor neuron Or22a exact synonym
ORN_DM2 exact synonym Bates et al., 2025
adult ORN Or22 exact synonym
ORN (Or22a/b) exact synonym 10395
odorant receptor neuron Or22b exact synonym
ORN_DM2 exact synonym
adult ORN Or22b exact synonym Hallem et al., 2004
ORN_DM2 exact synonym Scheffer et al., 2020
ORN ab3A exact synonym Couto et al., 2005
ORN_DM2 exact synonym Schlegel et al., 2024

List all available images of ORN_DM2 (327 total)

Thumbnail Name Tags
ORN_DM2_L (MaleCNS:174589841) Nervous_system, Peptidergic, Sensory_neuron, Adult, Olfactory_system
ORN_DM2_L (MaleCNS:214557957) Nervous_system, Peptidergic, Sensory_neuron, Adult, Olfactory_system, Cholinergic
ORN_DM2_L (MaleCNS:214557957) Nervous_system, Peptidergic, Sensory_neuron, Adult, Olfactory_system, Cholinergic
ORN_DM2_L (MaleCNS:243668978) Nervous_system, Peptidergic, Sensory_neuron, Adult, Olfactory_system, Cholinergic
ORN_DM2_L (MaleCNS:243668978) Nervous_system, Peptidergic, Sensory_neuron, Adult, Olfactory_system, Cholinergic

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Expression patterns overlapping ORN_DM2 (2 total)

Thumbnail Name Tags
P{Orco-GAL4.W} expression pattern Expression_pattern
P{Or22a-GAL4.7.717} expression pattern Expression_pattern

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Transgene expression in ORN_DM2 (3 total)

Thumbnail Name Tags
P{Or22a-GAL4.8197} expression pattern Expression_pattern
P{Orco-GAL4.W} expression pattern Expression_pattern
P{Or22a-GAL4.7.717} expression pattern Expression_pattern

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Downstream connectivity classes for ORN_DM2 (40 total)

Thumbnail Name Tags

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Upstream connectivity classes for ORN_DM2 (19 total)

Thumbnail Name Tags

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