+Open data
-Basic information
Entry | Database: PDB / ID: 6ip2 | ||||||
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Title | NSF-D1D2 part in the whole 20S complex | ||||||
Components | Vesicle-fusing ATPase | ||||||
Keywords | HYDROLASE / membrane fusion / ATPase | ||||||
Function / homology | Function and homology information SNARE complex disassembly / ATP-dependent protein disaggregase activity / vesicle-fusing ATPase / syntaxin-1 binding / positive regulation of receptor recycling / ionotropic glutamate receptor binding / SNARE binding / PDZ domain binding / intracellular protein transport / potassium ion transport ...SNARE complex disassembly / ATP-dependent protein disaggregase activity / vesicle-fusing ATPase / syntaxin-1 binding / positive regulation of receptor recycling / ionotropic glutamate receptor binding / SNARE binding / PDZ domain binding / intracellular protein transport / potassium ion transport / positive regulation of protein catabolic process / midbody / protein-containing complex binding / protein kinase binding / Golgi apparatus / ATP hydrolysis activity / ATP binding / identical protein binding / metal ion binding / plasma membrane / cytosol Similarity search - Function | ||||||
Biological species | Cricetulus griseus (Chinese hamster) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||
Authors | Huang, X. / Sun, S. / Wang, X. / Fan, F. / Zhou, Q. / Sui, S.F. | ||||||
Citation | Journal: Sci Adv / Year: 2019 Title: Mechanistic insights into the SNARE complex disassembly. Authors: Xuan Huang / Shan Sun / Xiaojing Wang / Fenghui Fan / Qiang Zhou / Shan Lu / Yong Cao / Qiu-Wen Wang / Meng-Qiu Dong / Jun Yao / Sen-Fang Sui / Abstract: NSF (-ethylmaleimide-sensitive factor) and α-SNAP (α-soluble NSF attachment protein) bind to the SNARE (soluble NSF attachment protein receptor) complex, the minimum machinery to mediate membrane ...NSF (-ethylmaleimide-sensitive factor) and α-SNAP (α-soluble NSF attachment protein) bind to the SNARE (soluble NSF attachment protein receptor) complex, the minimum machinery to mediate membrane fusion, to form a 20S complex, which disassembles the SNARE complex for reuse. We report the cryo-EM structures of the α-SNAP-SNARE subcomplex and the NSF-D1D2 domain in the 20S complex at 3.9- and 3.7-Å resolutions, respectively. Combined with the biochemical and electrophysiological analyses, we find that α-SNAPs use R116 through electrostatic interactions and L197 through hydrophobic interactions to apply force mainly on two positions of the VAMP protein to execute disassembly process. Furthermore, we define the interaction between the amino terminus of the SNARE helical bundle and the pore loop of the NSF-D1 domain and demonstrate its essential role as a potential anchor for SNARE complex disassembly. Our studies provide a rotation model of α-SNAP-mediated disassembly of the SNARE complex. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6ip2.cif.gz | 552.9 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6ip2.ent.gz | 451.9 KB | Display | PDB format |
PDBx/mmJSON format | 6ip2.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ip/6ip2 ftp://data.pdbj.org/pub/pdb/validation_reports/ip/6ip2 | HTTPS FTP |
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-Related structure data
Related structure data | 9698MC 9697C 9723C 9724C 9725C 9726C 9727C 9728C 9729C 6ip1C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 85441.133 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Cricetulus griseus (Chinese hamster) / Gene: NSF / Production host: Escherichia coli (E. coli) / References: UniProt: P18708, vesicle-fusing ATPase #2: Chemical | ChemComp-ATP / |
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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 |
-Sample preparation
Component | Name: NSF-D1D2 part in the whole 20S complex / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Cricetulus griseus (Chinese hamster) |
Source (recombinant) | Organism: Escherichia coli (E. coli) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 163942 / Symmetry type: POINT |