6EGT

Structure of RVFV envelope protein Gc in postfusion conformation in complex with MES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

A glycerophospholipid-specific pocket in the RVFV class II fusion protein drives target membrane insertion.

Guardado-Calvo, P.Atkovska, K.Jeffers, S.A.Grau, N.Backovic, M.Perez-Vargas, J.de Boer, S.M.Tortorici, M.A.Pehau-Arnaudet, G.Lepault, J.England, P.Rottier, P.J.Bosch, B.J.Hub, J.S.Rey, F.A.

(2017) Science 358: 663-667

  • DOI: 10.1126/science.aal2712
  • Primary Citation of Related Structures:  
    6EGU, 6EGT

  • PubMed Abstract: 
  • The Rift Valley fever virus (RVFV) is transmitted by infected mosquitoes, causing severe disease in humans and livestock across Africa. We determined the x-ray structure of the RVFV class II fusion protein Gc in its postfusion form and in complex with a glycerophospholipid (GPL) bound in a conserved cavity next to the fusion loop ...

    The Rift Valley fever virus (RVFV) is transmitted by infected mosquitoes, causing severe disease in humans and livestock across Africa. We determined the x-ray structure of the RVFV class II fusion protein Gc in its postfusion form and in complex with a glycerophospholipid (GPL) bound in a conserved cavity next to the fusion loop. Site-directed mutagenesis and molecular dynamics simulations further revealed a built-in motif allowing en bloc insertion of the fusion loop into membranes, making few nonpolar side-chain interactions with the aliphatic moiety and multiple polar interactions with lipid head groups upon membrane restructuring. The GPL head-group recognition pocket is conserved in the fusion proteins of other arthropod-borne viruses, such as Zika and chikungunya viruses, which have recently caused major epidemics worldwide.


    Organizational Affiliation

    UMR 3569 Virologie, CNRS-Institut Pasteur, 25-28 Rue du Docteur Roux, 75015 Paris, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glycoprotein ABC531Rift Valley fever virusMutation(s): 1 
Gene Names: GP
Find proteins for P03518 (Rift valley fever virus)
Explore P03518 
Go to UniProtKB:  P03518
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 2
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose
D
2 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.306α = 90
b = 102.03β = 90
c = 198.892γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-01
    Type: Initial release
  • Version 1.1: 2017-11-15
    Changes: Database references
  • Version 1.2: 2019-06-12
    Changes: Data collection, Structure summary
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary