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
  • Primary Citation of Related Structures:  
    6IP2, 6IP1

  • 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 disassembles the SNARE complex for reuse ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Vesicle-associated membrane protein 2A97Rattus norvegicusMutation(s): 0 
Gene Names: Vamp2Syb2
UniProt
Find proteins for P63045 (Rattus norvegicus)
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Syntaxin-1AB254Rattus norvegicusMutation(s): 0 
Gene Names: Stx1aSap
UniProt
Find proteins for P32851 (Rattus norvegicus)
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Synaptosomal-associated protein 25C102Rattus norvegicusMutation(s): 0 
Gene Names: Snap25Snap
UniProt
Find proteins for P60881 (Rattus norvegicus)
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Synaptosomal-associated protein 25D83Rattus norvegicusMutation(s): 0 
Gene Names: Snap25Snap
UniProt
Find proteins for P60881 (Rattus norvegicus)
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-soluble NSF attachment proteinE, F, G, H309Bos taurusMutation(s): 0 
Gene Names: NAPASNAPA
UniProt
Find proteins for P81125 (Bos taurus)
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

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

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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