8QHZ

320A Vipp1 H1-6 helical tubes


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.30 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for Vipp1 membrane binding: from loose coats and carpets to ring and rod assemblies.

Junglas, B.Kartte, D.Kutzner, M.Hellmann, N.Ritter, I.Schneider, D.Sachse, C.

(2024) Nat Struct Mol Biol 

  • DOI: https://doi.org/10.1038/s41594-024-01399-z
  • Primary Citation of Related Structures:  
    8QFV, 8QHV, 8QHW, 8QHX, 8QHY, 8QHZ, 8QI0, 8QI1, 8QI2, 8QI3, 8QI4, 8QI5, 8QI6, 9EOM, 9EON, 9EOO, 9EOP

  • PubMed Abstract: 

    Vesicle-inducing protein in plastids 1 (Vipp1) is critical for thylakoid membrane biogenesis and maintenance. Although Vipp1 has recently been identified as a member of the endosomal sorting complexes required for transport III superfamily, it is still unknown how Vipp1 remodels membranes. Here, we present cryo-electron microscopy structures of Synechocystis Vipp1 interacting with membranes: seven structures of helical and stacked-ring assemblies at 5-7-Å resolution engulfing membranes and three carpet structures covering lipid vesicles at ~20-Å resolution using subtomogram averaging. By analyzing ten structures of N-terminally truncated Vipp1, we show that helix α0 is essential for membrane tubulation and forms the membrane-anchoring domain of Vipp1. Lastly, using a conformation-restrained Vipp1 mutant, we reduced the structural plasticity of Vipp1 and determined two structures of Vipp1 at 3.0-Å resolution, resolving the molecular details of membrane-anchoring and intersubunit contacts of helix α0. Our data reveal membrane curvature-dependent structural transitions from carpets to rings and rods, some of which are capable of inducing and/or stabilizing high local membrane curvature triggering membrane fusion.


  • Organizational Affiliation

    Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, ER-C-3/Structural Biology, Forschungszentrum Jülich, Jülich, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Membrane-associated protein Vipp1A [auth D]192Synechocystis sp. PCC 6803Mutation(s): 0 
Gene Names: vipp1sll0617
UniProt
Find proteins for Q55707 (Synechocystis sp. (strain ATCC 27184 / PCC 6803 / Kazusa))
Explore Q55707 
Go to UniProtKB:  Q55707
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ55707
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.30 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanySA 1882/6-1
German Research Foundation (DFG)GermanySCHN 690/16-1

Revision History  (Full details and data files)

  • Version 1.0: 2024-09-18
    Type: Initial release
  • Version 1.1: 2024-10-16
    Changes: Data collection, Database references, Structure summary
  • Version 1.2: 2024-10-23
    Changes: Data collection, Database references