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- EMDB-71529: 22bin20S complex (NSF-alphaSNAP-2:2 syntaxin-1a:SNAP-25), hydroly... -
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Open data
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Basic information
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Title | 22bin20S complex (NSF-alphaSNAP-2:2 syntaxin-1a:SNAP-25), hydrolyzing, class 21 | ||||||||||||
![]() | Sharpened map from CryoSPARC NU-Refine, B = 126.8 | ||||||||||||
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![]() | ATPase / SNARE / hydrolysis / disassembly / translocation / exocytosis / neurotransmitter release / synapse / synaptic transmission / membrane fusion / HYDROLASE | ||||||||||||
Function / homology | ![]() soluble NSF attachment protein activity / BLOC-1 complex / myosin head/neck binding / SNARE complex disassembly / synaptic vesicle fusion to presynaptic active zone membrane / Other interleukin signaling / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex / synaptobrevin 2-SNAP-25-syntaxin-1a complex / presynaptic dense core vesicle exocytosis / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex ...soluble NSF attachment protein activity / BLOC-1 complex / myosin head/neck binding / SNARE complex disassembly / synaptic vesicle fusion to presynaptic active zone membrane / Other interleukin signaling / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex / synaptobrevin 2-SNAP-25-syntaxin-1a complex / presynaptic dense core vesicle exocytosis / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex / extrinsic component of presynaptic membrane / calcium ion-regulated exocytosis of neurotransmitter / Glutamate Neurotransmitter Release Cycle / Norepinephrine Neurotransmitter Release Cycle / Acetylcholine Neurotransmitter Release Cycle / Serotonin Neurotransmitter Release Cycle / GABA synthesis, release, reuptake and degradation / regulated exocytosis / positive regulation of norepinephrine secretion / positive regulation of catecholamine secretion / Dopamine Neurotransmitter Release Cycle / synaptic vesicle docking / regulation of synaptic vesicle priming / regulation of establishment of protein localization / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of calcium ion-dependent exocytosis / vesicle docking / ribbon synapse / secretion by cell / regulation of exocytosis / SNAP receptor activity / chloride channel inhibitor activity / SNARE complex / vesicle fusion / calcium-ion regulated exocytosis / ATP-dependent protein disaggregase activity / actomyosin / LGI-ADAM interactions / hormone secretion / intra-Golgi vesicle-mediated transport / Golgi to plasma membrane protein transport / positive regulation of hormone secretion / Golgi stack / ATP-dependent protein binding / neurotransmitter secretion / apical protein localization / protein localization to membrane / syntaxin binding / vesicle-fusing ATPase / vacuolar membrane / syntaxin-1 binding / insulin secretion / endosomal transport / Neutrophil degranulation / SNARE complex assembly / positive regulation of neurotransmitter secretion / neurotransmitter transport / synaptic vesicle priming / regulation of synapse assembly / response to gravity / myosin binding / regulation of neuron projection development / positive regulation of receptor recycling / exocytosis / modulation of excitatory postsynaptic potential / positive regulation of exocytosis / synaptic vesicle exocytosis / associative learning / protein sumoylation / synaptic vesicle endocytosis / voltage-gated potassium channel activity / positive regulation of excitatory postsynaptic potential / long-term memory / axonal growth cone / calcium channel inhibitor activity / presynaptic active zone membrane / photoreceptor inner segment / voltage-gated potassium channel complex / somatodendritic compartment / ionotropic glutamate receptor binding / endomembrane system / axonogenesis / secretory granule / acrosomal vesicle / SNARE binding / synaptic transmission, glutamatergic / PDZ domain binding / filopodium / intracellular protein transport / locomotory behavior / trans-Golgi network / postsynaptic density membrane / brain development / positive regulation of insulin secretion / potassium ion transport / kinase binding / Schaffer collateral - CA1 synapse / long-term synaptic potentiation / terminal bouton / neuron differentiation Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.23 Å | ||||||||||||
![]() | White KI / Brunger AT | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Pre-fusion AAA+ remodeling of target-SNARE protein complexes enables synaptic transmission. Authors: K Ian White / Yousuf A Khan / Kangqiang Qiu / Ashwin Balaji / Sergio Couoh-Cardel / Luis Esquivies / Richard A Pfuetzner / Jiajie Diao / Axel T Brunger Abstract: Membrane fusion is driven by SNARE complex formation across cellular contexts, including vesicle fusion during synaptic transmission. Multiple proteins organize trans-SNARE complex assembly and ...Membrane fusion is driven by SNARE complex formation across cellular contexts, including vesicle fusion during synaptic transmission. Multiple proteins organize trans-SNARE complex assembly and priming, leading to fusion. One target membrane SNARE, syntaxin, forms nanodomains at the active zone, and another, SNAP-25, enters non-fusogenic complexes with it. Here, we show that the AAA+ protein NSF (N-ethylmaleimide sensitive factor) and SNAP (soluble NSF attachment protein) must act prior to fusion. We show that syntaxin clusters are conserved, that NSF colocalizes with them, and characterize SNARE populations within and near these clusters using cryo-EM. Supercomplexes of NSF, α-SNAP, and either a syntaxin tetramer or two binary complexes of syntaxin-SNAP-25 reveal atomic details of SNARE processing and show how sequential ATP hydrolysis drives disassembly. These results suggest a functional role for syntaxin clusters as reservoirs and a corresponding role for NSF in syntaxin liberation and SNARE protein quality control preceding fusion. | ||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 91.6 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 33.7 KB 33.7 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 9.8 KB | Display | ![]() |
Images | ![]() | 145.5 KB | ||
Filedesc metadata | ![]() | 8.1 KB | ||
Others | ![]() ![]() ![]() | 48.3 MB 89.9 MB 89.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 1 MB | Display | ![]() |
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Full document | ![]() | 1 MB | Display | |
Data in XML | ![]() | 18.1 KB | Display | |
Data in CIF | ![]() | 23.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9pd8MC ![]() 9ojrC ![]() 9ojuC ![]() 9ojzC ![]() 9ok3C ![]() 9ok5C ![]() 9okcC ![]() 9oljC ![]() 9oloC ![]() 9om6C ![]() 9omqC ![]() 9pafC ![]() 9pagC ![]() 9pb9C ![]() 9pbaC ![]() 9pbfC ![]() 9pbvC ![]() 9pc3C ![]() 9pcxC ![]() 9pczC ![]() 9pd1C ![]() 9pdbC ![]() 9pddC ![]() 9pffC ![]() 9pfgC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Sharpened map from CryoSPARC NU-Refine, B = 126.8 | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.096 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: Unsharpened map from CryoSPARC NU-Refine
File | emd_71529_additional_1.map | ||||||||||||
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Annotation | Unsharpened map from CryoSPARC NU-Refine | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map A from CryoSPARC NU-Refine
File | emd_71529_half_map_1.map | ||||||||||||
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Annotation | Half map A from CryoSPARC NU-Refine | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map B from CryoSPARC NU-Refine
File | emd_71529_half_map_2.map | ||||||||||||
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Annotation | Half map B from CryoSPARC NU-Refine | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
+Entire : The 22bin20S complex of NSF, alphaSNAP, and the soluble 2:2 binar...
+Supramolecule #1: The 22bin20S complex of NSF, alphaSNAP, and the soluble 2:2 binar...
+Supramolecule #2: Subcomplex of alphaSNAP-syntaxin-1a-SNAP-25
+Supramolecule #3: Homohexameric NSF
+Supramolecule #4: 2:2 binary complex of SNAP-25 and syntaxin-1a
+Macromolecule #1: Vesicle-fusing ATPase
+Macromolecule #2: Synaptosomal-associated protein 25,Synaptosomal-associated protei...
+Macromolecule #3: Syntaxin-1A
+Macromolecule #4: Alpha-soluble NSF attachment protein isoform X2
+Macromolecule #5: unknown sequence
+Macromolecule #6: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #7: ADENOSINE-5'-TRIPHOSPHATE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 15 mg/mL | ||||||||||||||||||
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Buffer | pH: 8 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 298 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 33.96 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 22500 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |