FB2026_02 , released June 18, 2026

CV Term Report

Help Close All Open All

General Information

Term

larval excitatory interneuron eIN-2

ID (Ontology)

FBbt:00111731 (Fly Anatomy)

Definition

Larval eIN that is part of lineage 1 (Zwart et al., 2016; Burgos et al., 2018; Zarin et al., 2019) Notch ON (dorsal) primary hemilineage (Mark et al., 2021). Its soma is located ventrolaterally and its neurites extend contralaterally, then curve dorsally and medially back towards the midline (Zwart et al., 2016). A mainly presynaptic branch follows a more lateral route and terminates in the dorsal neuropil and a mostly postsynaptic branch follows a more medial route (Zwart et al., 2016). It outputs onto a specific subset of contralateral transverse motor neurons, including MN-LT1-4 and MN-DT1 (Zwart et al., 2016).[ FlyBase:FBrf0231327 FlyBase:FBrf0233076 FlyBase:FBrf0238464 FlyBase:FBrf0244727 FlyBase:FBrf0249021 ]

Also Known As

"eIN-2" ; "larval A01c neuron" ; "larval A01c1 neuron"

Comment

Referred to as A01c in Zwart et al. (2016) fig S2 (= A01c1 based on lack of ipsilateral dendrite). A01c1 and A01c2 have their names swapped in Mark et al. (2021) supplementary table (based on catmaid skid).

Links to External Ontologies

VFB:FBbt_00111731

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

There are no annotations using this term.

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

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Split System Combinations	Constructs
larval excitatory interneuron eIN-2 (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

Notch ON hemilineage primary neuron
 |__NB1-2 Notch ON hemilineage primary neuron__
NB1-2 lineage primary neuron                   |
 |__lineage NB1-2 primary interneuron__________|
 |__NB1-2 Notch ON hemilineage primary neuron__|
larval premotor neuron                         |
 |__larval excitatory interneuron eIN__________|
larval interneuron                             |
 |__larval excitatory interneuron eIN__________|
primary interneuron                            |
 |__lineage NB1-2 primary interneuron__________|
 |__larval excitatory interneuron eIN__________|
larval cholinergic neuron                      |
 |__larval excitatory interneuron eIN__________|
                                               larval excitatory interneuron eIN-2  3 rec.
                                                |__larval abdominal 1 eIN-2 neuron
                                                |__larval abdominal 2 eIN-2 neuron
                                                |__larval abdominal 3 eIN-2 neuron
                                                |__larval abdominal 4 eIN-2 neuron

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	lineage NB1-2 primary interneuron NB1-2 Notch ON hemilineage primary neuron larval excitatory interneuron eIN
Part of
Synonyms & Secondary IDs
Synonyms
	"A01c2" NARROW[ FlyBase:FBrf0249021 ] "eIN-2" EXACT[ FlyBase:FBrf0233076 ] "larval A01c neuron" EXACT[ FlyBase:FBrf0233076 ] "larval A01c1 neuron" EXACT[ FlyBase:FBrf0244727 ] "larval abdominal excitatory interneuron eIN-2" NARROW
Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00111731