FB2025_05 , released December 11, 2025

General Information
Term	octopaminergic ASM2 neuron	ID (Ontology)	FBbt:00110169 (Fly Anatomy)
Definition	Octopaminergic neuron of the ASM cluster which arborizes extensively in the ipsilateral side of the posterior protocerebrum. The primary neurite bifurcates dorsolaterally to the fan-shaped body. The main ipsilateral process projects laterally and ramifies extensively in the ipsilateral posterior protocerebrum, around the pedunculus of the mushroom body. The other process bifurcates again above the fan-shaped body, with the resulting branches running laterally to the midline. Then they project to the posterior where they turn toward the ipsilateral and contralateral inferior protocerebrum, respectively. The contralateral branch crosses the midline dorsal of the fan-shaped body. Each of the two branches arborizes in the inferior and ventrolateral protocerebrum (Busch et al., 2009).[ FlyBase:FBrf0207458 ]
Also Known As	"OA-ASM2"
Comment	The neurotransmitter was assessed by immunostaining with an anti-octopamine (OA) antibody in cells labelled with tdc2-GAL4 (FBti0101786) (Busch et al., 2009).
Links to External Ontologies
	VFB:FBbt_00110169
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available

General Information

Term

octopaminergic ASM2 neuron

ID (Ontology)

FBbt:00110169 (Fly Anatomy)

Definition

Octopaminergic neuron of the ASM cluster which arborizes extensively in the ipsilateral side of the posterior protocerebrum. The primary neurite bifurcates dorsolaterally to the fan-shaped body. The main ipsilateral process projects laterally and ramifies extensively in the ipsilateral posterior protocerebrum, around the pedunculus of the mushroom body. The other process bifurcates again above the fan-shaped body, with the resulting branches running laterally to the midline. Then they project to the posterior where they turn toward the ipsilateral and contralateral inferior protocerebrum, respectively. The contralateral branch crosses the midline dorsal of the fan-shaped body. Each of the two branches arborizes in the inferior and ventrolateral protocerebrum (Busch et al., 2009).[ FlyBase:FBrf0207458 ]

Also Known As

"OA-ASM2"

Comment

The neurotransmitter was assessed by immunostaining with an anti-octopamine (OA) antibody in cells labelled with tdc2-GAL4 (FBti0101786) (Busch et al., 2009).

Links to External Ontologies

VFB:FBbt_00110169

Annotations

Records annotated with this term OR any of its CHILD TERMS

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

No relevant statements available

supraesophageal ganglion neuron__ adult octopaminergic neuron______| adult CNS neuron_________________| octopaminergic ASM neuron |__octopaminergic ASM2 neuron

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Is a	octopaminergic ASM neuron
Part of
Synonyms & Secondary IDs
Synonyms
	"anterior superior medial octopaminergic neuron" RELATED "OA-ASM2" EXACT VFB_SYMBOL[ FlyBase:FBrf0207458 ]
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00110169

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Relationships

Is a

octopaminergic ASM neuron

Part of

Synonyms & Secondary IDs

Synonyms

"anterior superior medial octopaminergic neuron" RELATED
"OA-ASM2" EXACT VFB_SYMBOL[ FlyBase:FBrf0207458 ]

Secondary IDs

External Crossreferences & Linkouts

VFB:FBbt_00110169