5JW3

Structure of MEDI8852 Fab Fragment in Complex with H7 HA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.75 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure and Function Analysis of an Antibody Recognizing All Influenza A Subtypes.

Kallewaard, N.L.Corti, D.Collins, P.J.Neu, U.McAuliffe, J.M.Benjamin, E.Wachter-Rosati, L.Palmer-Hill, F.J.Yuan, A.Q.Walker, P.A.Vorlaender, M.K.Bianchi, S.Guarino, B.De Marco, A.Vanzetta, F.Agatic, G.Foglierini, M.Pinna, D.Fernandez-Rodriguez, B.Fruehwirth, A.Silacci, C.Ogrodowicz, R.W.Martin, S.R.Sallusto, F.Suzich, J.A.Lanzavecchia, A.Zhu, Q.Gamblin, S.J.Skehel, J.J.

(2016) Cell 166: 596-608

  • DOI: 10.1016/j.cell.2016.05.073
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Influenza virus remains a threat because of its ability to evade vaccine-induced immune responses due to antigenic drift. Here, we describe the isolation, evolution, and structure of a broad-spectrum human monoclonal antibody (mAb), MEDI8852, effecti ...

    Influenza virus remains a threat because of its ability to evade vaccine-induced immune responses due to antigenic drift. Here, we describe the isolation, evolution, and structure of a broad-spectrum human monoclonal antibody (mAb), MEDI8852, effectively reacting with all influenza A hemagglutinin (HA) subtypes. MEDI8852 uses the heavy-chain VH6-1 gene and has higher potency and breadth when compared to other anti-stem antibodies. MEDI8852 is effective in mice and ferrets with a therapeutic window superior to that of oseltamivir. Crystallographic analysis of Fab alone or in complex with H5 or H7 HA proteins reveals that MEDI8852 binds through a coordinated movement of CDRs to a highly conserved epitope encompassing a hydrophobic groove in the fusion domain and a large portion of the fusion peptide, distinguishing it from other structurally characterized cross-reactive antibodies. The unprecedented breadth and potency of neutralization by MEDI8852 support its development as immunotherapy for influenza virus-infected humans.


    Organizational Affiliation

    Department of Infectious Disease and Vaccines, MedImmune LLC, One MedImmune Way, Gaithersburg, MD 20878, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
A
316Influenza A virus
Find proteins for Q6GYW3 (Influenza A virus)
Go to UniProtKB:  Q6GYW3
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
B
170Influenza A virus
Find proteins for Q6GYW3 (Influenza A virus)
Go to UniProtKB:  Q6GYW3
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
MEDI8852 heavy chain
H
228N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
MEDI8852 light chain
L
206N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAN
Query on MAN

Download SDF File 
Download CCD File 
A
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
BMA
Query on BMA

Download SDF File 
Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.75 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.224 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 143.990α = 90.00
b = 143.990β = 90.00
c = 130.920γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXrefinement
PHASERphasing
PDB_EXTRACTdata extraction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-08-03
    Type: Initial release
  • Version 1.1: 2016-08-10
    Type: Database references