3J99

Structure of 20S supercomplex determined by single particle cryoelectron microscopy (State IIIb)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Mechanistic insights into the recycling machine of the SNARE complex.

Zhao, M.Wu, S.Zhou, Q.Vivona, S.Cipriano, D.J.Cheng, Y.Brunger, A.T.

(2015) Nature 518: 61-67

  • DOI: 10.1038/nature14148
  • Structures With Same Primary Citation

  • PubMed 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-ethylmaleimide sensitive factor), together with SNAPs (solubl ...

    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.


    Organizational Affiliation

    1] Department of Molecular and Cellular Physiology, Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, USA [2] Department of Neurology and Neurological Sciences, Department of Structural Biology, Department of Photon Science, Stanford University, Stanford, California 94305, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Alpha-soluble NSF attachment protein
G, H, I, J
297Rattus norvegicusMutation(s): 0 
Gene Names: NapaSnapSnapa
Find proteins for P54921 (Rattus norvegicus)
Go to UniProtKB:  P54921

Find similar proteins by: Sequence  |  Structure

Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Syntaxin-1A
L
67Rattus norvegicusMutation(s): 0 
Gene Names: Stx1aSap
Find proteins for P32851 (Rattus norvegicus)
Go to UniProtKB:  P32851

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vesicle-fusing ATPase
A, B, C, D, E, F
747Cricetulus griseusMutation(s): 0 
Gene Names: NSF
EC: 3.6.4.6
Find proteins for P18708 (Cricetulus griseus)
Go to UniProtKB:  P18708

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Vesicle-associated membrane protein 2
K
63Rattus norvegicusMutation(s): 0 
Gene Names: Vamp2Syb2
Find proteins for P63045 (Rattus norvegicus)
Go to UniProtKB:  P63045

Find similar proteins by: Sequence  |  Structure

Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Synaptosomal-associated protein 25
M
188Rattus norvegicusMutation(s): 0 
Gene Names: Snap25Snap
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-01-28
    Type: Initial release
  • Version 1.1: 2015-02-11
    Changes: Database references
  • Version 1.2: 2018-07-18
    Changes: Data collection