SMP550 [FBbt_20003412]

Adult brain-intrinsic neuron of the SMP550 group, with its soma in the brain, dorsal to the superior medial protocerebrum (Schlegel et al., 2024; Dorkenwald et al., 2024). It is a putative embryonic-born neuron (Schlegel et al., 2024; Dorkenwald et al., 2024). It has postsynapses in the ipsilateral superior lateral protocerebrum, the ipsilateral superior medial protocerebrum, the ipsilateral lateral horn and the ipsilateral superior clamp (Schlegel et al., 2024; Dorkenwald et al., 2024). It has presynapses in the ipsilateral superior medial protocerebrum (Schlegel et al., 2024; Dorkenwald et al., 2024). Its predicted neurotransmitter is acetylcholine (Eckstein et al., 2024). There are approximately 2 of these cells per organism (Schlegel et al., 2024; Dorkenwald et al., 2024).
SMP550 SMP550 SMP550 SMP550

SMP550

ID: FBbt_20003412

Adult Cholinergic Nervous system primary neuron

Adult brain-intrinsic neuron of the SMP550 group, with its soma in the brain, dorsal to the superior medial protocerebrum (Schlegel et al., 2024; Dorkenwald et al., 2024). It is a putative embryonic-born neuron (Schlegel et al., 2024; Dorkenwald et al., 2024). It has postsynapses in the ipsilateral superior lateral protocerebrum, the ipsilateral superior medial protocerebrum, the ipsilateral lateral horn and the ipsilateral superior clamp (Schlegel et al., 2024; Dorkenwald et al., 2024). It has presynapses in the ipsilateral superior medial protocerebrum (Schlegel et al., 2024; Dorkenwald et al., 2024). Its predicted neurotransmitter is acetylcholine (Eckstein et al., 2024). There are approximately 2 of these cells per organism (Schlegel et al., 2024; Dorkenwald et al., 2024).

Uncharacterized putative cell type based on Hemibrain data (Scheffer et al., 2020) and updated using FlyWire (FAFB) data (Dorkenwald et al., 2024; Schlegel et al., 2024). Soma locations are based on the closest annotated neuropil region. Pre- or post-synapse locations are the fewest regions that collectively contain at least 80 percent of all pre- or post-synapses of these neurons in FlyWire. Neurotransmitter predictions are from Eckstein et al. (2024). Other annotations are based on annotations in FlyWire and are available in the supplemental material of Schlegel et al. (2024).

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## Classification

Relationships

Alternative Names

Synonym Scope Reference
SMP550 exact synonym Berg et al., 2025
SMP550 exact synonym Schlegel et al., 2024
SMP550 exact synonym Scheffer et al., 2020
SMP550 exact synonym

List all available images of SMP550 (8 total)

Thumbnail Name Tags
SMP550(PDM29)_L Nervous_system, primary_neuron, Adult, Cholinergic
SMP550(PDM29)_L Nervous_system, primary_neuron, Adult, Cholinergic
SMP550(PDM29)_L Nervous_system, primary_neuron, Adult, Cholinergic
SMP550_L (MaleCNS:11470) Nervous_system, primary_neuron, Adult, Cholinergic
SMP550_R (MaleCNS:13244) Nervous_system, primary_neuron, Adult, Cholinergic

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Downstream connectivity classes for SMP550 (211 total)

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Upstream connectivity classes for SMP550 (154 total)

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