5W9I

MERS S ectodomain trimer in complex with variable domain of neutralizing antibody G4


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Immunogenicity and structures of a rationally designed prefusion MERS-CoV spike antigen.

Pallesen, J.Wang, N.Corbett, K.S.Wrapp, D.Kirchdoerfer, R.N.Turner, H.L.Cottrell, C.A.Becker, M.M.Wang, L.Shi, W.Kong, W.P.Andres, E.L.Kettenbach, A.N.Denison, M.R.Chappell, J.D.Graham, B.S.Ward, A.B.McLellan, J.S.

(2017) Proc Natl Acad Sci U S A 114: E7348-E7357

  • DOI: https://doi.org/10.1073/pnas.1707304114
  • Primary Citation of Related Structures:  
    5VYH, 5VZR, 5W9H, 5W9I, 5W9J, 5W9K, 5W9L, 5W9M, 5W9N, 5W9O, 5W9P

  • PubMed Abstract: 

    Middle East respiratory syndrome coronavirus (MERS-CoV) is a lineage C betacoronavirus that since its emergence in 2012 has caused outbreaks in human populations with case-fatality rates of ∼36%. As in other coronaviruses, the spike (S) glycoprotein of MERS-CoV mediates receptor recognition and membrane fusion and is the primary target of the humoral immune response during infection. Here we use structure-based design to develop a generalizable strategy for retaining coronavirus S proteins in the antigenically optimal prefusion conformation and demonstrate that our engineered immunogen is able to elicit high neutralizing antibody titers against MERS-CoV. We also determined high-resolution structures of the trimeric MERS-CoV S ectodomain in complex with G4, a stem-directed neutralizing antibody. The structures reveal that G4 recognizes a glycosylated loop that is variable among coronaviruses and they define four conformational states of the trimer wherein each receptor-binding domain is either tightly packed at the membrane-distal apex or rotated into a receptor-accessible conformation. Our studies suggest a potential mechanism for fusion initiation through sequential receptor-binding events and provide a foundation for the structure-based design of coronavirus vaccines.


  • Organizational Affiliation

    Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Spike glycoprotein
A, B, E, F, I
A, B, E, F, I, J
1,329Middle East respiratory syndrome-related coronavirusMutation(s): 2 
UniProt
Find proteins for K9N5Q8 (Middle East respiratory syndrome-related coronavirus (isolate United Kingdom/H123990006/2012))
Explore K9N5Q8 
Go to UniProtKB:  K9N5Q8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupK9N5Q8
Glycosylation
Glycosylation Sites: 5
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
G4 VH
C, G, K
233Mus musculusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
G4 VL
D, H, L
218Mus musculusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
AB [auth J]
BB [auth J]
HA [auth A]
IA [auth B]
JA [auth B]
AB [auth J],
BB [auth J],
HA [auth A],
IA [auth B],
JA [auth B],
KA [auth B],
LA [auth B],
MA [auth B],
NA [auth B],
OA [auth E],
PA [auth F],
QA [auth F],
RA [auth F],
SA [auth F],
TA [auth F],
UA [auth F],
VA [auth I],
WA [auth J],
XA [auth J],
YA [auth J],
ZA [auth J]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION1.4
MODEL REFINEMENTRosetta
MODEL REFINEMENTPHENIX

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 StatesP20GM113132
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01AI127521

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-16
    Type: Initial release
  • Version 1.1: 2017-08-30
    Changes: Database references
  • Version 1.2: 2017-09-13
    Changes: Author supporting evidence, Data collection, Database references
  • Version 1.3: 2017-11-08
    Changes: Derived calculations
  • Version 1.4: 2018-07-18
    Changes: Data collection, Experimental preparation
  • Version 1.5: 2019-11-06
    Changes: Data collection, Other
  • Version 1.6: 2019-12-11
    Changes: Author supporting evidence
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary