6IP1

alpha-SNAP-SNARE subcomplex in the whole 20S complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 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 SNARE complex disassembly.

Huang, X.Sun, S.Wang, X.Fan, F.Zhou, Q.Lu, S.Cao, Y.Wang, Q.W.Dong, M.Q.Yao, J.Sui, S.F.

(2019) Sci Adv 5: eaau8164-eaau8164

  • DOI: 10.1126/sciadv.aau8164
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • NSF ( N -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 disasse ...

    NSF ( N -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.


    Organizational Affiliation

    State Key Laboratory of Membrane Biology, Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Alpha-soluble NSF attachment protein
E, F, G, H
309Bos taurusMutation(s): 0 
Gene Names: NAPA
Find proteins for A5D7S0 (Bos taurus)
Go to UniProtKB:  A5D7S0

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vesicle-associated membrane protein 2
A
97Rattus norvegicusMutation(s): 0 
Gene Names: Vamp2Syb2
Find proteins for P63045 (Rattus norvegicus)
Go to UniProtKB:  P63045

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Syntaxin-1A
B
254Rattus norvegicusMutation(s): 0 
Gene Names: Stx1aSap
Find proteins for P32851 (Rattus norvegicus)
Go to UniProtKB:  P32851

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Synaptosomal-associated protein 25
C
102Rattus norvegicusMutation(s): 0 
Gene Names: Snap25Snap
Find proteins for P60881 (Rattus norvegicus)
Go to UniProtKB:  P60881

Find similar proteins by: Sequence  |  Structure

Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Synaptosomal-associated protein 25
D
83Rattus norvegicusMutation(s): 0 
Gene Names: Snap25Snap
Find proteins for P60881 (Rattus norvegicus)
Go to UniProtKB:  P60881
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-04-24
    Type: Initial release
  • Version 1.1: 2019-05-01
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-06
    Changes: Data collection, Other