4ZYP

Crystal Structure of Motavizumab and Quaternary-Specific RSV-Neutralizing Human Antibody AM14 in Complex with Prefusion RSV F Glycoprotein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 5.5 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Characterization of a Prefusion-Specific Antibody That Recognizes a Quaternary, Cleavage-Dependent Epitope on the RSV Fusion Glycoprotein.

Gilman, M.S.Moin, S.M.Mas, V.Chen, M.Patel, N.K.Kramer, K.Zhu, Q.Kabeche, S.C.Kumar, A.Palomo, C.Beaumont, T.Baxa, U.Ulbrandt, N.D.Melero, J.A.Graham, B.S.McLellan, J.S.

(2015) Plos Pathog. 11: e1005035-e1005035

  • DOI: 10.1371/journal.ppat.1005035
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Prevention efforts for respiratory syncytial virus (RSV) have been advanced due to the recent isolation and characterization of antibodies that specifically recognize the prefusion conformation of the RSV fusion (F) glycoprotein. These potently neutr ...

    Prevention efforts for respiratory syncytial virus (RSV) have been advanced due to the recent isolation and characterization of antibodies that specifically recognize the prefusion conformation of the RSV fusion (F) glycoprotein. These potently neutralizing antibodies are in clinical development for passive prophylaxis and have also aided the design of vaccine antigens that display prefusion-specific epitopes. To date, prefusion-specific antibodies have been shown to target two antigenic sites on RSV F, but both of these sites are also present on monomeric forms of F. Here we present a structural and functional characterization of human antibody AM14, which potently neutralized laboratory strains and clinical isolates of RSV from both A and B subtypes. The crystal structure and location of escape mutations revealed that AM14 recognizes a quaternary epitope that spans two protomers and includes a region that undergoes extensive conformational changes in the pre- to postfusion F transition. Binding assays demonstrated that AM14 is unique in its specific recognition of trimeric furin-cleaved prefusion F, which is the mature form of F on infectious virions. These results demonstrate that the prefusion F trimer contains potent neutralizing epitopes not present on monomers and that AM14 should be particularly useful for characterizing the conformational state of RSV F-based vaccine antigens.


    Organizational Affiliation

    Department of Biochemistry, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fusion glycoprotein F0,Fibritin
A, B, C
498Human respiratory syncytial virus A (strain A2)Enterobacteria phage T4
This entity is chimeric
Mutation(s): 6 
Gene Names: F, wac
Find proteins for P03420 (Human respiratory syncytial virus A (strain A2))
Go to UniProtKB:  P03420
Find proteins for D9IEJ2 (Enterobacteria phage T4)
Go to UniProtKB:  D9IEJ2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Motavizumab antibody Fab heavy chain
J, K, N
225N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Motavizumab antibody light chain
L, M, O
213N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
AM14 antibody Fab heavy chain
F, H, D
227N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
AM14 antibody light chain
G, I, E
215N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 114.380α = 90.00
b = 210.290β = 100.46
c = 118.200γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
Cootmodel building
PHENIXrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-29
    Type: Initial release