FB2026_03 , released September 17, 2026
CV Term Report
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Term larval maxillary VPM neuron ID (Ontology) FBbt:00047749 (Fly Anatomy)
Definition Octopaminergic, bilaterally-paired neuron of the maxillary neuromere of the larval subesophageal ganglion. There is one of these neurons per hemisphere. They form a cluster with the VUM neuron cell bodies, but unlike the VUM neurons, the VPM neurons are restricted to the CNS (Selcho et al., 2014). The maxillary VPM neuron has its postsynaptic sites mainly in the subesophageal ganglia of both hemispheres and presynaptic sites in the contralateral mushroom body lower vertical lobe (V1 region), as well as the centroposterior lateral compartment (clamp) and the dorsoanterior and dorsoposterior compartments (superior medial protocerebrum) (Saumweber et al., 2018). It receives input from FAN-2, FB2N-20 and FFN-35 (Eschbach et al., 2020). During metamorphosis, it becomes an adult octopaminergic VPM3 neuron (Truman et al., 2023).[ FlyBase:FBrf0225919 FlyBase:FBrf0238440 FlyBase:FBrf0245294 FlyBase:FBrf0255928 ]
Also Known As"MBE22" ; "OAN-g1" ; "sVPMmx"
CommentMBE22 synonym from catmaid.
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VFB:FBbt_00047749
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 larval maxillary VPM neuron (all annotations which use CV term, excluding "NOT" statements)
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subesophageal zone neuron
 |__gnathal ganglion neuron_______________________
octopaminergic neuron                             |
 |__mushroom body octopaminergic neuron___________|
mushroom body modulatory input neuron             |
 |__larval mushroom body modulatory input neuron__|
larval interneuron                                |
 |__larval mushroom body modulatory input neuron__|
primary interneuron                               |
 |__larval mushroom body modulatory input neuron__|
larval octopaminergic neuron                      |
 |__larval octopaminergic VPM neuron______________|
larval tyraminergic neuron                        |
 |__larval octopaminergic VPM neuron______________|
larval CNS neuron                                 |
 |__larval octopaminergic VPM neuron______________|
                                                  larval maxillary VPM neuron  7 rec.
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Is a larval octopaminergic VPM neuron
larval mushroom body modulatory input neuron
mushroom body octopaminergic neuron
gnathal ganglion neuron
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VFB:FBbt_00047749