ArticleProceedings of the National Academy of Sciences of the United States of America2019
SNARE machinery is optimized for ultrafast fusion.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 51 citations in OpenAlex.
- Turbocharging synaptic transmission: 12 SNAREpins are required for rapid release of reconstituted synaptic vesicles.Science advances · 2026Article
- SNAP-25 disease variants affect synaptic transmission by destabilizing SNARE complexes within a multimeric SNARE ring.Cell reports · 2026Article
- Two successive oligomeric Munc13 assemblies scaffold vesicle docking and SNARE assembly to support neurotransmitter release.Nature communications · 2025Article
- Minimal presynaptic protein machinery governing diverse kinetics of calcium-evoked neurotransmitter release.Nature communications · 2024Article
- Dual-Ring SNAREpin Machinery Tuning for Fast Synaptic Vesicle Fusion.Biomolecules · 2024Article
- A minimal presynaptic protein machinery mediating synchronous and asynchronous exocytosis and short-term plasticity.bioRxiv : the preprint server for biology · 2024Article
- Article
- Mechanisms of SNARE proteins in membrane fusion.Nature reviews. Molecular cell biology · 2024Review
- Synaptophysin chaperones the assembly of 12 SNAREpins under each ready-release vesicle.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- The release of inhibition model reproduces kinetics and plasticity of neurotransmitter release in central synapses.Communications biology · 2023Article
- Roles for diacylglycerol in synaptic vesicle priming and release revealed by complete reconstitution of core protein machinery.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Double-Transmembrane Domain of SNAREs Decelerates the Fusion by Increasing the Protein-Lipid Mismatch.Journal of molecular biology · 2023Article
- Novel Roles for Diacylglycerol in Synaptic Vesicle Priming and Release Revealed by Complete Reconstitution of Core Protein Machinery.bioRxiv : the preprint server for biology · 2023Article
- CHARMM-GUIJournal of chemical theory and computation · 2023Review
- SNARE Proteins in Synaptic Vesicle Fusion.Advances in neurobiology · 2023Article
- The beginning and the end of SNARE-induced membrane fusion.FEBS open bio · 2022Review
- Stability profile of the neuronal SNARE complex reflects its potency to drive fast membrane fusion.Biophysical journal · 2022Article
- Energetics, kinetics, and pathways of SNARE assembly in membrane fusion.Critical reviews in biochemistry and molecular biology · 2022Review
- Article
- Munc13 structural transitions and oligomers that may choreograph successive stages in vesicle priming for neurotransmitter release.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
6 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
SNARE proteins zipper to form complexes (SNAREpins) that power vesicle fusion with target membranes in a variety of biological processes. A single SNAREpin takes about 1 s to fuse two bilayers, yet a handful can ensure release of neurotransmitters from synaptic vesicles much faster: in a 10th of a millisecond. We propose that, similar to the case of muscle myosins, the ultrafast fusion results from cooperative action of many SNAREpins. The coupling originates from mechanical interactions induced by confining scaffolds. Each SNAREpin is known to have enough energy to overcome the fusion barrier of 25-[Formula: see text]; however, the fusion barrier only becomes relevant when the SNAREpins are nearly completely zippered, and from this state, each SNAREpin can deliver only a small fraction of this energy as mechanical work. Therefore, they have to act cooperatively, and we show that at least three of them are needed to ensure fusion in less than a millisecond. However, to reach the prefusion state collectively, starting from the experimentally observed half-zippered metastable state, the SNAREpins have to mechanically synchronize, which takes more time as the number of SNAREpins increases. Incorporating this somewhat counterintuitive idea in a simple coarse-grained model results in the prediction that there should be an optimum number of SNAREpins for submillisecond fusion: three to six over a wide range of parameters. Interestingly, in situ cryoelectron microscope tomography has very recently shown that exactly six SNAREpins participate in the fusion of each synaptic vesicle. This number is in the range predicted by our theory.
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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.