FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval abdominal inhibitory interneuron iIN-1 ID (Ontology) FBbt:00111736 (Fly Anatomy)
Definition GABAergic premotor neuron (Zwart et al., 2016; Zarin et al., 2019) that is relatively early-born in the NB4-1 Notch ON primary hemilineage (Mark et al., 2021). Its soma is found ventrolaterally and it extends dorsally, then medially, crossing the midline and terminating close to it (Zwart et al., 2016). Its postsynapses are mainly ipsilateral and its presynapses are mainly contralateral (Zwart et al., 2016). It outputs onto transverse muscle motor neurons and is required for the normal asynchrony in contraction between the transverse and longitudinal muscles during locomotion (Zwart et al., 2016).[ FlyBase:FBrf0231327 FlyBase:FBrf0233076 FlyBase:FBrf0244727 FlyBase:FBrf0249021 ]
Also Known As "iIN-1" ; "larval A14a neuron" ; "larval A14a3 neuron"
Comment Renamed from A14a to A14a3 in Mark et al. (2021) based on catmaid skid.
Links to External Ontologies
VFB:FBbt_00111736
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 larval abdominal inhibitory interneuron iIN-1 (all annotations which use CV term, excluding "NOT" statements)       1      2
Spanning Tree (Parents/Children)
Only view relationship: 
larval neuron
 |__larval premotor neuron_____________________
 |__larval GABAergic neuron____________________|
interneuron                                    |
 |__larval interneuron_________________________|
GABAergic neuron                               |
 |__larval GABAergic neuron____________________|
Notch ON hemilineage primary neuron            |
 |__NB4-1 Notch ON hemilineage primary neuron__|
NB4-1 lineage primary neuron                   |
 |__lineage NB4-1 primary interneuron__________|
 |__NB4-1 Notch ON hemilineage primary neuron__|
premotor neuron                                |
 |__larval premotor neuron_____________________|
primary interneuron                            |
 |__lineage NB4-1 primary interneuron__________|
larval CNS neuron                              |
 |__larval interneuron_________________________|
                                               larval abdominal inhibitory interneuron iIN-1  3 rec.
                                                |__larval abdominal 1 iIN-1 neuron
                                                |__larval abdominal 2 iIN-1 neuron
                                                |__larval abdominal 3 iIN-1 neuron
                                                |__larval abdominal 4 iIN-1 neuron
                                                |__larval abdominal 5 iIN-1 neuron
                                                |__larval abdominal 6 iIN-1 neuron
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Is a lineage NB4-1 primary interneuron
NB4-1 Notch ON hemilineage primary neuron
larval premotor neuron
larval interneuron
larval GABAergic neuron
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Synonyms
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VFB:FBbt_00111736