Accessing the BANC data
The BANC is a deep, open resource. Below are the places to read the paper, explore the connectome online, download the data, and find the analysis code. The Harvard Dataverse holds a stable, DOI-citable snapshot (materialization v888) that reproduces the paper; FlyWire Codex serves the live, continually corrected version.
A note on snapshots: the published paper uses the v2 synapse tables (size threshold ≥ 5) throughout. The newer v3 tables (≥ 10, ~18% more synapses) are the recommended default for new analyses.
The paper
Browse and explore online
| Resource |
Description |
Link |
| FlyWire Codex |
Browse the live, evolving BANC connectome, cell by cell |
codex.flywire.ai/banc |
| BANC viewer (Neuroglancer) |
EM image data and v888 meshes, shown alongside registered neurons from FAFB, FANC, HemiBrain, maleCNS and MANC for direct cross-dataset comparison |
ng.banc.community/view |
| BANC portal |
Community hub for annotation, exploration and documentation |
banc.community |
| CAVE (programmatic) |
Connectome Annotation Versioning Engine, the public BANC datastack for programmatic access |
public datastack |
Download the data
| Resource |
Description |
Link / location |
| Harvard Dataverse (v888) |
DOI-citable static snapshot (~391 GB): analysis-ready per-neuron and per-synapse tables, edgelists, neurotransmitter predictions, NBLAST cross-dataset matches, influence scores, L2 skeletons, colorMIPs, meshes, registrations and the code ZIPs. Reproduces the paper. |
doi:10.7910/DVN/7WTH1N |
| BossDB |
Aligned EM image data, the flat v888 segmentation, the nuclei and mitochondria segmentation layers, and a long-term archive of the neuron meshes |
bossdb.org/…bates_phelps_kim_yang2025 · DOI 10.60533/boss-2025-941r |
| GCS source bucket |
The live bulk-data source bucket behind the connectome |
gs://lee-lab_brain-and-nerve-cord-fly-connectome/ |
Code
| Repository |
Description |
Link / DOI |
| bancr (R) |
Primary user-facing R client: metadata, connectivity, influence, NBLAST matches, meshes and template-space transforms |
natverse/bancr · Zenodo |
| the-BANC-fly-connectome (Python) |
Jasper Phelps’s Python client: CAVE access, mesh download, transforms, colorMIPs and the canonical Neuroglancer states |
jasper-tms/the-BANC-fly-connectome |
| influencer (R) |
R port/wrapper of the linear-dynamics influence model used in the paper |
natverse/influencer · Zenodo |
| ConnectomeInfluenceCalculator (Python) |
Drugowitsch lab’s influence engine (PETSc/SLEPc); computes every adjusted-influence number |
DrugowitschLab/ConnectomeInfluenceCalculator · Zenodo |
| bancpipeline (R + SLURM) |
Reproducibility pipeline that builds every compiled-data product from the raw CAVE tables |
htem/bancpipeline · Zenodo |
| BANC-project (R) |
Analysis code and figure files behind every figure in the paper |
htem/BANC-project · Zenodo |
| nat.ggplot (R) |
Publication-quality 2D ggplot2 rendering of neurons and brain meshes |
natverse/nat.ggplot · Zenodo |
| synister_banc |
BANC neurotransmitter-prediction code, ground truth and prediction pointers |
htem/synister_banc · Zenodo |
| drosophila_neurotransmitters |
Curated literature database of transmitter usage by cell type (source of neurotransmitter_verified) |
funkelab/drosophila_neurotransmitters |
| drosophila_neuropeptides |
Curated literature database of neuropeptide usage by cell type (source of neuropeptide_verified) |
funkelab/drosophila_neuropeptides |
| fly_connectome_data_tutorial (R + Python) |
SJCABS tutorial covering BANC, FAFB-FlyWire, MANC, HemiBrain and maleCNS at a uniform level |
sjcabs/fly_connectome_data_tutorial |
When citing a specific software component, please cite its own Zenodo DOI (or GitHub repository where no DOI is yet minted) rather than the Dataverse copy.