FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval mushroom body output neuron k1 ID (Ontology) FBbt:00047985 (Fly Anatomy)
Definition Bilateral larval neuron that has presynapses in the dorsoanterior compartment (anterior superior medial protocerebrum) and postsynapses in the ventral part of the medial region (lower toe) of the mushroom body medial lobe (Saumweber et al., 2018). It is glutamatergic (Eichler et al., 2017). It outputs onto FAN-1, FAN-9 and FAN-11 (Eschbach et al., 2020). Its activity promotes turning behavior (Eschbach et al., 2021). It develops from neuroblast DAMd1 (Saumweber et al., 2018) and becomes an MBON01 during metamorphosis (Truman et al., 2023).[ FlyBase:FBrf0236359 FlyBase:FBrf0238440 FlyBase:FBrf0245294 FlyBase:FBrf0251872 FlyBase:FBrf0255928 ]
Also Known As "larval MBON-k1" ; "MBE5b"
Comment MBE5b synonym from catmaid.
Links to External Ontologies
VFB:FBbt_00047985
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 larval mushroom body output neuron k1 (all annotations which use CV term, excluding "NOT" statements)       2     10
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larval neuron
 |__larval glutamatergic neuron_________
interneuron                             |
 |__primary interneuron_________________|
anterior ectoderm derivative            |
 |__DAMd1 lineage neuron________________|
primary neuron                          |
 |__primary interneuron_________________|
mushroom body output neuron             |
 |__larval mushroom body output neuron__|
larval interneuron                      |
 |__larval mushroom body output neuron__|
CNS neuron                              |
 |__supraesophageal ganglion neuron_____|
 |__DAMd1 lineage neuron________________|
glutamatergic neuron                    |
 |__larval glutamatergic neuron_________|
                                        larval mushroom body output neuron k1  12 rec.
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Is a supraesophageal ganglion neuron
larval mushroom body output neuron
primary interneuron
larval glutamatergic neuron
DAMd1 lineage neuron
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VFB:FBbt_00047985