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- PDB-3j99: Structure of 20S supercomplex determined by single particle cryoe... -
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Basic information
Entry | Database: PDB / ID: 3j99 | ||||||
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Title | Structure of 20S supercomplex determined by single particle cryoelectron microscopy (State IIIb) | ||||||
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![]() | HYDROLASE / vesicle trafficking | ||||||
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 / trans-Golgi Network Vesicle Budding / BLOC-1 complex / SNARE complex disassembly / regulation of delayed rectifier potassium channel activity / exocytic insertion of neurotransmitter receptor to postsynaptic membrane ...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 / trans-Golgi Network Vesicle Budding / BLOC-1 complex / SNARE complex disassembly / regulation of delayed rectifier potassium channel activity / exocytic insertion of neurotransmitter receptor to postsynaptic membrane / myosin head/neck binding / Other interleukin signaling / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex / synaptobrevin 2-SNAP-25-syntaxin-1a complex / synaptic vesicle fusion to presynaptic active zone membrane / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex / calcium ion-regulated exocytosis of neurotransmitter / Glutamate Neurotransmitter Release Cycle / Norepinephrine Neurotransmitter Release Cycle / COPII-mediated vesicle transport / Acetylcholine Neurotransmitter Release Cycle / positive regulation of norepinephrine secretion / positive regulation of catecholamine secretion / Serotonin Neurotransmitter Release Cycle / GABA synthesis, release, reuptake and degradation / Lysosome Vesicle Biogenesis / presynaptic dense core vesicle exocytosis / Dopamine Neurotransmitter Release Cycle / regulated exocytosis / extrinsic component of presynaptic membrane / zymogen granule membrane / ribbon synapse / synaptic vesicle docking / regulation of synaptic vesicle priming / Golgi Associated Vesicle Biogenesis / storage vacuole / regulation of establishment of protein localization / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / response to gravity / positive regulation of calcium ion-dependent exocytosis / vesicle-mediated transport in synapse / protein-containing complex disassembly / vesicle docking / eosinophil degranulation / secretion by cell / SNAP receptor activity / chloride channel inhibitor activity / regulation of exocytosis / SNARE complex / vesicle fusion / neurotransmitter receptor internalization / regulation of vesicle-mediated transport / Cargo recognition for clathrin-mediated endocytosis / ATP-dependent protein disaggregase activity / calcium-ion regulated exocytosis / LGI-ADAM interactions / Clathrin-mediated endocytosis / intra-Golgi vesicle-mediated transport / hormone secretion / actomyosin / positive regulation of intracellular protein transport / Golgi to plasma membrane protein transport / Golgi stack / positive regulation of hormone secretion / neurotransmitter secretion / ATP-dependent protein binding / apical protein localization / neuron projection terminus / positive regulation of ATP-dependent activity / protein localization to membrane / syntaxin binding / vesicle-fusing ATPase / regulation of synaptic vesicle recycling / syntaxin-1 binding / clathrin-coated vesicle / insulin secretion / Neutrophil degranulation / SNARE complex assembly / endosomal transport / positive regulation of neurotransmitter secretion / neurotransmitter transport / synaptic vesicle priming / myosin binding / regulation of synapse assembly / positive regulation of receptor recycling / regulation of neuron projection development / exocytosis / modulation of excitatory postsynaptic potential / associative learning / synaptic vesicle exocytosis / positive regulation of exocytosis / postsynaptic cytosol / protein sumoylation / synaptic vesicle endocytosis / voltage-gated potassium channel activity / positive regulation of excitatory postsynaptic potential / long-term memory / calcium channel inhibitor activity / response to glucose / axonal growth cone Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8.2 Å | ||||||
![]() | Zhao, M. / Wu, S. / Cheng, Y. / Brunger, A.T. | ||||||
![]() | ![]() Title: Mechanistic insights into the recycling machine of the SNARE complex. Authors: Minglei Zhao / Shenping Wu / Qiangjun Zhou / Sandro Vivona / Daniel J Cipriano / Yifan Cheng / Axel T Brunger / ![]() Abstract: Evolutionarily conserved SNARE (soluble N-ethylmaleimide sensitive factor attachment protein receptors) proteins form a complex that drives membrane fusion in eukaryotes. The ATPase NSF (N- ...Evolutionarily conserved SNARE (soluble N-ethylmaleimide sensitive factor attachment protein receptors) proteins form a complex that drives membrane fusion in eukaryotes. The ATPase NSF (N-ethylmaleimide sensitive factor), together with SNAPs (soluble NSF attachment protein), disassembles the SNARE complex into its protein components, making individual SNAREs available for subsequent rounds of fusion. Here we report structures of ATP- and ADP-bound NSF, and the NSF/SNAP/SNARE (20S) supercomplex determined by single-particle electron cryomicroscopy at near-atomic to sub-nanometre resolution without imposing symmetry. Large, potentially force-generating, conformational differences exist between ATP- and ADP-bound NSF. The 20S supercomplex exhibits broken symmetry, transitioning from six-fold symmetry of the NSF ATPase domains to pseudo four-fold symmetry of the SNARE complex. SNAPs interact with the SNARE complex with an opposite structural twist, suggesting an unwinding mechanism. The interfaces between NSF, SNAPs, and SNAREs exhibit characteristic electrostatic patterns, suggesting how one NSF/SNAP species can act on many different SNARE complexes. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 882.2 KB | Display | ![]() |
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PDB format | ![]() | 695.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.3 MB | Display | |
Data in XML | ![]() | 158.9 KB | Display | |
Data in CIF | ![]() | 239.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6209MC ![]() 6204C ![]() 6205C ![]() 6206C ![]() 6207C ![]() 6208C ![]() 6210C ![]() 3j94C ![]() 3j95C ![]() 3j96C ![]() 3j97C ![]() 3j98C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 82907.430 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 33377.793 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #3: Protein | | Mass: 7231.061 Da / Num. of mol.: 1 / Fragment: UNP residues 28-89 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #4: Protein | | Mass: 7837.957 Da / Num. of mol.: 1 / Fragment: UNP residues 191-256 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #5: Protein | | Mass: 21256.855 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Value: 0.66 MDa / Experimental value: NO | |||||||||||||||||||||||||||||||||||
Buffer solution | Name: 50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40 pH: 8 Details: 50 mM Tris-Cl, 150 mM NaCl, 1 mM AMPPNP, 1 mM EDTA, 1 mM DTT, 0.05% v/v Nonident P-40 | |||||||||||||||||||||||||||||||||||
Specimen | Conc.: 15 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||||||||||||||||||||||
Specimen support | Details: Holey carbon on top of 400 mesh copper grid | |||||||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK I / Cryogen name: ETHANE / Temp: 77 K / Humidity: 100 % Details: Blot for 3.5 seconds before plunging into liquid ethane (FEI VITROBOT MARK I). Method: Blot for 3.5 seconds before plunging. |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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Microscopy | Model: FEI POLARA 300 / Date: Jan 28, 2014 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 31000 X / Nominal defocus max: -2800 nm / Nominal defocus min: -1800 nm / Cs: 2.3 mm / Camera length: 0 mm |
Specimen holder | Specimen holder model: OTHER / Specimen holder type: unspecified |
Image recording | Electron dose: 44 e/Å2 / Film or detector model: GATAN K2 (4k x 4k) |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Relative weight: 1 |
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Processing
EM software |
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CTF correction | Details: Each particle | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 8.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 14991 / Nominal pixel size: 2.4312 Å / Actual pixel size: 2.4312 Å Details: (Single particle details: 3D classification, refinement, and reconstruction were performed using RELION) (Single particle--Applied symmetry: C1) Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: RECIPROCAL / Target criteria: R-factor Details: REFINEMENT PROTOCOL--flexible DETAILS--D2 domain of NSF was from crystal structure 1NSF. D1 domain of NSF was from related entry EMD-6204. N domain of NSF was from crystal structure 1QCS. ...Details: REFINEMENT PROTOCOL--flexible DETAILS--D2 domain of NSF was from crystal structure 1NSF. D1 domain of NSF was from related entry EMD-6204. N domain of NSF was from crystal structure 1QCS. aSNAP was a homology model. SNARE complex was from crystal structure 1N7S. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | 3D fitting-ID: 1 / Source name: PDB / Type: experimental model
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Refinement | Resolution: 8.2→8.2 Å / SU ML: 1.57 / σ(F): 0.79 / Phase error: 39.71 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 50 Å2 / Biso mean: 50 Å2 / Biso min: 50 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 8.201→311.194 Å
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Refine LS restraints |
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LS refinement shell | Refine-ID: ELECTRON MICROSCOPY / Total num. of bins used: 30
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