The latest version of the ontology can always be found at:
http://virtualflybrain.org/data/VFB/OWL/VFB_NT.owl
The edit version, src/ontology/VFB_NT-edit.owl, should not be changed manually - it is generated by an automated process.
For MANC, optic-lobe and male-cns datasets, predictions are sourced from the neuprint predictedNt field, with data generated by Takemura et al. (2023), Nern et al. (2025) and Berg (2025), respectively. Predictions for FlyWire FAFB and Hemibrain datasets are conf_nt from Eckstein et al. (2024). BANC predictions are sourced from the Predicted NT type field of the Codex neurons.csv download and only used if not in conflict with the Verified NT type field, with data generated by Bates (2026).
In all cases, analysis was restricted to a particular set of neurotransmitters and assumed a single neurotransmitter per neuron (see publications for further detail). Neurons with fewer than 100 presynapses are excluded.
Please use this GitHub repository's Issue tracker to report errors or specific concerns related to the ontology.
This ontology repository was created using the Ontology Development Kit (ODK).
Data for neurotransmitter predictions is taken from neuprint or from Eckstein et al. (2024) - FBrf0259490.