7A3T | pdb_00007a3t

Crystal structure of dengue 3 virus envelope glycoprotein in complex with the Fab fragment of the broadly neutralizing human antibody EDE1 C8


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 
    0.254 (Depositor), 0.254 (DCC) 
  • R-Value Work: 
    0.207 (Depositor), 0.209 (DCC) 
  • R-Value Observed: 
    0.210 (Depositor) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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This is version 1.4 of the entry. See complete history

Literature

The epitope arrangement on flavivirus particles contributes to Mab C10's extraordinary neutralization breadth across Zika and dengue viruses.

Sharma, A.Zhang, X.Dejnirattisai, W.Dai, X.Gong, D.Wongwiwat, W.Duquerroy, S.Rouvinski, A.Vaney, M.C.Guardado-Calvo, P.Haouz, A.England, P.Sun, R.Zhou, Z.H.Mongkolsapaya, J.Screaton, G.R.Rey, F.A.

(2021) Cell 184: 6052-6066.e18

  • DOI: https://doi.org/10.1016/j.cell.2021.11.010
  • Primary Citation Related Structures: 
    7A3N, 7A3O, 7A3P, 7A3Q, 7A3R, 7A3S, 7A3T, 7A3U, 7CTH

  • PubMed Abstract: 

    The human monoclonal antibody C10 exhibits extraordinary cross-reactivity, potently neutralizing Zika virus (ZIKV) and the four serotypes of dengue virus (DENV1-DENV4). Here we describe a comparative structure-function analysis of C10 bound to the envelope (E) protein dimers of the five viruses it neutralizes. We demonstrate that the C10 Fab has high affinity for ZIKV and DENV1 but not for DENV2, DENV3, and DENV4. We further show that the C10 interaction with the latter viruses requires an E protein conformational landscape that limits binding to only one of the three independent epitopes per virion. This limited affinity is nevertheless counterbalanced by the particle's icosahedral organization, which allows two different dimers to be reached by both Fab arms of a C10 immunoglobulin. The epitopes' geometric distribution thus confers C10 its exceptional neutralization breadth. Our results highlight the importance not only of paratope/epitope complementarity but also the topological distribution for epitope-focused vaccine design.


  • Organizational Affiliation
    • Institut Pasteur, Université de Paris, CNRS UMR3569, Unité de Virologie Structurale, 75015 Paris, France.

Macromolecule Content 

  • Total Structure Weight: 101.29 kDa 
  • Atom Count: 6,403 
  • Modeled Residue Count: 818 
  • Deposited Residue Count: 917 
  • Unique protein chains: 3

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Core protein428dengue virus type 3Mutation(s): 2 
Gene Names: POLY
EC: 3.4.21.91 (PDB Primary Data), 3.6.1.15 (PDB Primary Data), 3.6.4.13 (PDB Primary Data)
UniProt
Find proteins for P27915 (Dengue virus type 3 (strain Philippines/H87/1956))
Explore P27915 
Go to UniProtKB:  P27915
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27915
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
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Reference Sequence
Find similar proteins by:|  3D Structure
Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
EDE1 C8 antibody Fab fragmentB [auth H]272Homo sapiensMutation(s): 0 
Find similar proteins by:|  3D Structure
Entity ID: 3
MoleculeChains  Sequence LengthOrganismDetailsImage
EDE1 C8 antibody Fab fragmentC [auth L]217Homo sapiensMutation(s): 0 

Oligosaccharides

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Entity ID: 4
MoleculeChains Length2D Diagram GlycosylationD Interactions
alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranoseD [auth B]5N-Glycosylation
Glycosylation Resources
GlyTouCan: G00395TQ
GlyCosmos: G00395TQ
GlyGen: G00395TQ

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free:  0.254 (Depositor), 0.254 (DCC) 
  • R-Value Work:  0.207 (Depositor), 0.209 (DCC) 
  • R-Value Observed: 0.210 (Depositor) 
Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.309α = 90
b = 110.309β = 90
c = 217.337γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
Aimlessdata scaling
PHENIXphasing
XDSdata reduction

Structure Validation

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Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustFrance--

Revision History  (Full details and data files)

  • Version 1.0: 2021-12-08
    Type: Initial release
  • Version 1.1: 2021-12-15
    Changes: Database references
  • Version 1.2: 2021-12-22
    Changes: Database references
  • Version 1.3: 2024-01-31
    Changes: Data collection, Refinement description
  • Version 1.4: 2024-11-06
    Changes: Structure summary