5MDM

Structural intermediates in the fusion associated transition of vesiculovirus glycoprotein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.998 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural intermediates in the fusion-associated transition of vesiculovirus glycoprotein.

Baquero, E.Albertini, A.A.Raux, H.Abou-Hamdan, A.Boeri-Erba, E.Ouldali, M.Buonocore, L.Rose, J.K.Lepault, J.Bressanelli, S.Gaudin, Y.

(2017) EMBO J. 36: 679-692

  • DOI: 10.15252/embj.201694565

  • PubMed Abstract: 
  • Vesiculoviruses enter cells by membrane fusion, driven by a large, low-pH-induced, conformational change in the fusion glycoprotein G that involves transition from a trimeric pre-fusion toward a trimeric post-fusion state via monomeric intermediates. ...

    Vesiculoviruses enter cells by membrane fusion, driven by a large, low-pH-induced, conformational change in the fusion glycoprotein G that involves transition from a trimeric pre-fusion toward a trimeric post-fusion state via monomeric intermediates. Here, we present the structure of the G fusion protein at intermediate pH for two vesiculoviruses, vesicular stomatitis virus (VSV) and Chandipura virus (CHAV), which is responsible for deadly encephalopathies. First, a CHAV G crystal structure shows two intermediate conformations forming a flat dimer of heterodimers. On virions, electron microscopy (EM) and tomography reveal monomeric spikes similar to one of the crystal conformations. In solution, mass spectrometry shows dimers of G. Finally, mutations at a dimer interface, involving fusion domains associated in an antiparallel manner to form an intermolecular β-sheet, affect G fusion properties. The location of the compensatory mutations restoring fusion activity strongly suggests that this interface is functionally relevant. This work reveals the range of G structural changes and suggests that G monomers can re-associate, through antiparallel interactions between fusion domains, into dimers that play a role at some early stage of the fusion process.


    Organizational Affiliation

    Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette Cedex, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glycoprotein
E, F, A, C
419Chandipura virus (strain I653514)Mutation(s): 0 
Gene Names: G
Find proteins for P13180 (Chandipura virus (strain I653514))
Go to UniProtKB:  P13180
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
E
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
FUC
Query on FUC

Download SDF File 
Download CCD File 
F
ALPHA-L-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, C, F
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.998 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.188 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 150.340α = 90.00
b = 228.210β = 90.00
c = 78.840γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
XDSdata reduction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European UnionFranceITN VIRUS ENTRY 235649
French National Research AgencyFranceANR-08-BLAN-0256
French National Research AgencyFranceANR 11 BSV8 002 01

Revision History 

  • Version 1.0: 2016-12-14
    Type: Initial release
  • Version 1.1: 2017-02-22
    Type: Database references
  • Version 1.2: 2017-03-15
    Type: Database references
  • Version 1.3: 2017-08-30
    Type: Author supporting evidence