6NB8

Crystal structure of anti- SARS-CoV human neutralizing S230 antibody Fab fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.129 
  • R-Value Observed: 0.131 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Unexpected Receptor Functional Mimicry Elucidates Activation of Coronavirus Fusion.

Walls, A.C.Xiong, X.Park, Y.J.Tortorici, M.A.Snijder, J.Quispe, J.Cameroni, E.Gopal, R.Dai, M.Lanzavecchia, A.Zambon, M.Rey, F.A.Corti, D.Veesler, D.

(2019) Cell 176: 1026-1039.e15

  • DOI: 10.1016/j.cell.2018.12.028
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Recent outbreaks of severe acute respiratory syndrome and Middle East respiratory syndrome, along with the threat of a future coronavirus-mediated pandemic, underscore the importance of finding ways to combat these viruses. The trimeric spike transme ...

    Recent outbreaks of severe acute respiratory syndrome and Middle East respiratory syndrome, along with the threat of a future coronavirus-mediated pandemic, underscore the importance of finding ways to combat these viruses. The trimeric spike transmembrane glycoprotein S mediates entry into host cells and is the major target of neutralizing antibodies. To understand the humoral immune response elicited upon natural infections with coronaviruses, we structurally characterized the SARS-CoV and MERS-CoV S glycoproteins in complex with neutralizing antibodies isolated from human survivors. Although the two antibodies studied blocked attachment to the host cell receptor, only the anti-SARS-CoV S antibody triggered fusogenic conformational changes via receptor functional mimicry. These results provide a structural framework for understanding coronavirus neutralization by human antibodies and shed light on activation of coronavirus membrane fusion, which takes place through a receptor-driven ratcheting mechanism.


    Organizational Affiliation

    Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA. Electronic address: dveesler@uw.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
S230 antigen-binding (Fab) fragment, heavy chainH230Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
S230 antigen-binding (Fab) fragment, light chainL219Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.167 
  • R-Value Work: 0.129 
  • R-Value Observed: 0.131 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.823α = 90
b = 104.406β = 90
c = 108.71γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01GM120553

Revision History 

  • Version 1.0: 2019-02-06
    Type: Initial release
  • Version 1.1: 2019-02-20
    Changes: Data collection, Database references
  • Version 1.2: 2019-03-06
    Changes: Data collection, Database references
  • Version 1.3: 2020-01-01
    Changes: Author supporting evidence