ArticleProceedings of the National Academy of Sciences of the United States of America2022
Munc13 structural transitions and oligomers that may choreograph successive stages in vesicle priming for neurotransmitter release.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
47 citing papers in PubMed.
- Resolving endogenous protein organization in cells with nanometer resolution.Nature communications · 2026Article
- Turbocharging synaptic transmission: 12 SNAREpins are required for rapid release of reconstituted synaptic vesicles.Science advances · 2026Article
- Munc13 serves as a molecular filter for SNARE sorting and assembly in active zone condensates.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- SNAP-25 disease variants affect synaptic transmission by destabilizing SNARE complexes within a multimeric SNARE ring.Cell reports · 2026Article
- Synaptic transmission: Munc13 assembles onto PI(4,5)PProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Munc13-1 couples DAG and CaScience advances · 2026Article
- Recent Structural Insights into the Molecular Architecture of Synapses.Advances in neurobiology · 2026Review
- Dynamic nanoscale architecture of synaptic vesicle fusion in mouse hippocampal neurons.Nature communications · 2025Article
- Independently engaging protein tethers of different length enhance synaptic vesicle trafficking to the plasma membrane.The Journal of physiology · 2025Article
- Phosphorylation of SNAP-25 at Ser187 is enhanced following its cleavage by Botulinum Neurotoxin Serotype A, promoting the dominant-negative effect of the resulting fragment.PLoS pathogens · 2025Article
- Munc13-1 restoration mitigates presynaptic pathology in spinal muscular atrophy.Nature communications · 2025Article
- Two successive oligomeric Munc13 assemblies scaffold vesicle docking and SNARE assembly to support neurotransmitter release.Nature communications · 2025Article
- PI(4,5)PBiochimica et biophysica acta. Molecular and cell biology of lipids · 2025Review
- Article
- A specific negatively charged sequence confers intramolecular regulation on Munc13-1 function in synaptic exocytosis.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Vesicle docking and fusion pore modulation by the neuronal calcium sensor Synaptotagmin-1.Biophysical journal · 2025Article
- Mechanisms that regulate the C1-C2B mutual inhibition control functional switch of UNC-13.eLife · 2025Article
- Quantitative single-molecule analysis of assembly and CaCommunications biology · 2024Article
- Presynaptic cAMP-PKA-mediated potentiation induces reconfiguration of synaptic vesicle pools and channel-vesicle coupling at hippocampal mossy fiber boutons.PLoS biology · 2024Article
- Vesicle docking and fusion pore modulation by the neuronal calcium sensor Synaptotagmin-1.bioRxiv : the preprint server for biology · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
How can exactly six SNARE complexes be assembled under each synaptic vesicle? Here we report cryo-EM crystal structures of the core domain of Munc13, the key chaperone that initiates SNAREpin assembly. The functional core of Munc13, consisting of C1-C2B-MUN-C2C (Munc13C) spontaneously crystallizes between phosphatidylserine-rich bilayers in two distinct conformations, each in a radically different oligomeric state. In the open conformation (state 1), Munc13C forms upright trimers that link the two bilayers, separating them by ∼21 nm. In the closed conformation, six copies of Munc13C interact to form a lateral hexamer elevated ∼14 nm above the bilayer. Open and closed conformations differ only by a rigid body rotation around a flexible hinge, which when performed cooperatively assembles Munc13 into a lateral hexamer (state 2) in which the key SNARE assembly-activating site of Munc13 is autoinhibited by its neighbor. We propose that each Munc13 in the lateral hexamer ultimately assembles a single SNAREpin, explaining how only and exactly six SNARE complexes are templated. We suggest that state 1 and state 2 may represent two successive states in the synaptic vesicle supply chain leading to "primed" ready-release vesicles in which SNAREpins are clamped and ready to release (state 3).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.