5JW5

Structure of MEDI8852 Fab Fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 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
  • Structures With Same Primary Citation

  • 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, effectively reacting with all influenza A hemagglutinin (HA) subtypes ...

    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

    Mill Hill Laboratory, The Francis Crick Institute, London NW7 1AA, UK. Electronic address: john.skehel@crick.ac.uk.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MEDI8852 Heavy chainA, H227Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MEDI8852 Light chainB, L210Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download CCD File 
B, H, L
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.22α = 90
b = 109.92β = 90
c = 139.89γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-08-03
    Type: Initial release
  • Version 1.1: 2016-08-10
    Changes: Database references
  • Version 1.2: 2019-04-03
    Changes: Data collection, Source and taxonomy