7PKR

Vault structure in primmed conformation


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
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This is version 1.1 of the entry. See complete history


Literature

Symmetry disruption commits vault particles to disassembly.

Guerra, P.Gonzalez-Alamos, M.Llauro, A.Casanas, A.Querol-Audi, J.de Pablo, P.J.Verdaguer, N.

(2022) Sci Adv 8: eabj7795-eabj7795

  • DOI: https://doi.org/10.1126/sciadv.abj7795
  • Primary Citation of Related Structures:  
    7PKR, 7PKY, 7PKZ

  • PubMed Abstract: 

    Vaults are ubiquitous ribonucleoprotein particles involved in a diversity of cellular processes, with promising applications as nanodevices for delivery of multiple cargos. The vault shell is assembled by the symmetrical association of multiple copies of the major vault protein that, initially, generates half vaults. The pairwise, anti-parallel association of two half vaults produces whole vaults. Here, using a combination of vault recombinant reconstitution and structural techniques, we characterized the molecular determinants for the vault opening process. This process commences with a relaxation of the vault waist, causing the expansion of the inner cavity. Then, local disengagement of amino-terminal domains at the vault midsection seeds a conformational change that leads to the aperture, facilitating access to the inner cavity where cargo is hosted. These results inform a hitherto uncharacterized step of the vault cycle and will aid current engineering efforts leveraging vault for tailored cargo delivery.


  • Organizational Affiliation

    Structural Biology Department, Instituto de Biología Molecular de Barcelona (IBMB-CSIC), Parc Científic de Barcelona, Baldiri i Reixac 15, E-08028 Barcelona, Spain.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Major vault protein861Rattus norvegicusMutation(s): 0 
Gene Names: Mvp
UniProt
Find proteins for Q62667 (Rattus norvegicus)
Explore Q62667 
Go to UniProtKB:  Q62667
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ62667
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Spanish National Research CouncilSpain20202CEX003
Spanish Ministry of Science, Innovation, and UniversitiesSpainBIO2017-83906-P

Revision History  (Full details and data files)

  • Version 1.0: 2022-03-16
    Type: Initial release
  • Version 1.1: 2024-07-17
    Changes: Data collection, Refinement description