FB2026_03 , released September 17, 2026
CV Term Report
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Term larval pair1 neuron ID (Ontology) FBbt:00048574 (Fly Anatomy)
Definition Larval descending neuron that has its soma and ipsilateral dendrites in the subesophageal zone and a contralateral axon that projects posteriorly through the abdominal neuromeres (Carreira-Rosario et al., 2018; Tastekin et al., 2018; Lee et al., 2022). It receives stimulatory input from the mooncrawler and PDM descending neurons (Tastekin et al., 2018; Carreira-Rosario et al., 2018). It outputs onto the A27h neurons in neuromeres A5-A7 to inhibit forwards locomotion (Tastekin et al., 2018; Carreira-Rosario et al., 2018). There is one of these neurons per hemisphere and it is GABAergic (Tastekin et al., 2018).[ FlyBase:FBrf0239825 FlyBase:FBrf0240828 FlyBase:FBrf0253736 ]
Also Known As"larval SEZ descending neuron 1" ; "larval SEZ-DN1" ; "larval SEZ_DN1 neuron" (for all, see Synonyms field below)
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VFB:FBbt_00048574
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 larval pair1 neuron (all annotations which use CV term, excluding "NOT" statements)
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larval neuron
 |__larval GABAergic neuron____
larval central nervous system  |
 |__larval interneuron_________|
subesophageal zone neuron      |
 |__gnathal ganglion neuron____|
interneuron                    |
 |__larval interneuron_________|
 |__primary interneuron________|
GABAergic neuron               |
 |__larval GABAergic neuron____|
primary neuron                 |
 |__primary interneuron________|
larval CNS neuron              |
 |__larval interneuron_________|
                               larval pair1 neuron  9 rec.
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Is a gnathal ganglion neuron
larval interneuron
primary interneuron
larval GABAergic neuron
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VFB:FBbt_00048574