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- EMDB-71533: 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 29 | ||||||||||||
![]() | Sharpened map from CryoSPARC NU-Refine, B = 129.0 | ||||||||||||
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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 / Intra-Golgi traffic / Retrograde transport at the Trans-Golgi-Network / COPI-dependent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / SNARE complex disassembly / synaptobrevin 2-SNAP-25-syntaxin-1a complex / COPII-mediated vesicle transport / Golgi Associated Vesicle Biogenesis / regulation of synaptic vesicle priming ...soluble NSF attachment protein activity / Intra-Golgi traffic / Retrograde transport at the Trans-Golgi-Network / COPI-dependent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / SNARE complex disassembly / synaptobrevin 2-SNAP-25-syntaxin-1a complex / COPII-mediated vesicle transport / Golgi Associated Vesicle Biogenesis / regulation of synaptic vesicle priming / protein-containing complex disassembly / ATP-dependent protein disaggregase activity / intra-Golgi vesicle-mediated transport / Golgi to plasma membrane protein transport / positive regulation of ATP-dependent activity / Golgi stack / apical protein localization / syntaxin binding / vesicle-fusing ATPase / syntaxin-1 binding / synaptic vesicle priming / positive regulation of receptor recycling / presynaptic active zone membrane / ionotropic glutamate receptor binding / SNARE binding / synaptic transmission, glutamatergic / PDZ domain binding / intracellular protein transport / brain development / neuromuscular junction / potassium ion transport / terminal bouton / neuron differentiation / positive regulation of protein catabolic process / presynapse / midbody / membrane fusion / postsynapse / protein kinase binding / protein-containing complex binding / glutamatergic synapse / ATP hydrolysis activity / ATP binding / metal ion binding / identical protein binding / plasma membrane / cytosol Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.16 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 | ![]() | 91.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 31 KB 31 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 9.8 KB | Display | ![]() |
Images | ![]() | 146.1 KB | ||
Filedesc metadata | ![]() | 7.7 KB | ||
Others | ![]() ![]() ![]() | 48.3 MB 90 MB 90 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 1 MB | Display | ![]() |
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Full document | ![]() | 1 MB | Display | |
Data in XML | ![]() | 18.2 KB | Display | |
Data in CIF | ![]() | 23.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9pddMC ![]() 9ojrC ![]() 9ojuC ![]() 9ojzC ![]() 9ok3C ![]() 9ok5C ![]() 9okcC ![]() 9oljC ![]() 9oloC ![]() 9om6C ![]() 9omqC ![]() 9pafC ![]() 9pagC ![]() 9pb9C ![]() 9pbaC ![]() 9pbfC ![]() 9pbvC ![]() 9pc3C ![]() 9pcxC ![]() 9pczC ![]() 9pd1C ![]() 9pd8C ![]() 9pdbC ![]() 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 = 129.0 | ||||||||||||||||||||||||||||||||||||
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_71533_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_71533_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_71533_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 alpha-SNAP with poorly defined SNARE bundle
+Supramolecule #3: Homohexameric NSF
+Macromolecule #1: Vesicle-fusing ATPase
+Macromolecule #3: Alpha-soluble NSF attachment protein
+Macromolecule #2: Unknown SNARE protein
+Macromolecule #4: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #5: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #6: PHOSPHATE ION
+Macromolecule #7: MAGNESIUM ION
-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 |