5FHC

Crystal Structure of Protective Human Antibodies 100 and 114 in Complex with Ebola Virus Fusion Glycoprotein (GP)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.70 Å
  • R-Value Free: 0.343 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.265 

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Literature

Structural and molecular basis for Ebola virus neutralization by protective human antibodies.

Misasi, J.Gilman, M.S.Kanekiyo, M.Gui, M.Cagigi, A.Mulangu, S.Corti, D.Ledgerwood, J.E.Lanzavecchia, A.Cunningham, J.Muyembe-Tamfun, J.J.Baxa, U.Graham, B.S.Xiang, Y.Sullivan, N.J.McLellan, J.S.

(2016) Science 351: 1343-1346

  • DOI: 10.1126/science.aad6117
  • Primary Citation of Related Structures:  
    5FHB, 5FHA, 5FHC

  • PubMed Abstract: 
  • Ebola virus causes hemorrhagic fever with a high case fatality rate for which there is no approved therapy. Two human monoclonal antibodies, mAb100 and mAb114, in combination, protect nonhuman primates against all signs of Ebola virus disease, includ ...

    Ebola virus causes hemorrhagic fever with a high case fatality rate for which there is no approved therapy. Two human monoclonal antibodies, mAb100 and mAb114, in combination, protect nonhuman primates against all signs of Ebola virus disease, including viremia. Here, we demonstrate that mAb100 recognizes the base of the Ebola virus glycoprotein (GP) trimer, occludes access to the cathepsin-cleavage loop, and prevents the proteolytic cleavage of GP that is required for virus entry. We show that mAb114 interacts with the glycan cap and inner chalice of GP, remains associated after proteolytic removal of the glycan cap, and inhibits binding of cleaved GP to its receptor. These results define the basis of neutralization for two protective antibodies and may facilitate development of therapies and vaccines.


    Organizational Affiliation

    Department of Biochemistry, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Envelope glycoproteinJ98Ebola virus - Mayinga, Zaire, 1976Mutation(s): 0 
Gene Names: GP
Find proteins for Q05320 (Zaire ebolavirus (strain Mayinga-76))
Explore Q05320 
Go to UniProtKB:  Q05320
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Envelope glycoprotein,Envelope glycoproteinK322Ebola virus - Mayinga, Zaire, 1976Mutation(s): 0 
Gene Names: GP
Find proteins for Q05320 (Zaire ebolavirus (strain Mayinga-76))
Explore Q05320 
Go to UniProtKB:  Q05320
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody 100 Fab heavy chainA227Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody 100 Fab light chainB207Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody 114 Fab light chainL212Homo sapiensMutation(s): 0 
Protein Feature View
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody 114 Fab heavy chainH220Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 6.70 Å
  • R-Value Free: 0.343 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.265 
  • Space Group: H 3 2
  • Diffraction Data DOI: 10.15785/SBGRID/250 SBGrid
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 169.67α = 90
b = 169.67β = 90
c = 376.99γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
PDB_EXTRACTdata extraction
Cootmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-16
    Type: Initial release
  • Version 1.1: 2016-03-30
    Changes: Database references