1TZG

Crystal structure of HIV-1 neutralizing human Fab 4E10 in complex with a 13-residue peptide containing the 4E10 epitope on gp41


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Broadly Neutralizing Anti-HIV Antibody 4E10 Recognizes a Helical Conformation of a Highly Conserved Fusion-Associated Motif in gp41

Cardoso, R.M.F.Zwick, M.B.Stanfield, R.L.Kunert, R.Binley, J.M.Katinger, H.Burton, D.R.Wilson, I.A.

(2005) Immunity 22: 163-173

  • DOI: 10.1016/j.immuni.2004.12.011
  • Also Cited By: 2FX7, 2FX8, 2FX9

  • PubMed Abstract: 
  • Broadly neutralizing monoclonal antibodies to HIV-1 are rare but invaluable for vaccine design. 4E10 is the broadest neutralizing antibody known and recognizes a contiguous and highly conserved epitope in the membrane-proximal region of gp41. The cry ...

    Broadly neutralizing monoclonal antibodies to HIV-1 are rare but invaluable for vaccine design. 4E10 is the broadest neutralizing antibody known and recognizes a contiguous and highly conserved epitope in the membrane-proximal region of gp41. The crystal structure of Fab 4E10 was determined at 2.2 A resolution in complex with a 13-residue peptide containing the gp41 core epitope (NWFDIT). The bound peptide adopts a helical conformation in which the key contact residues, TrpP672, PheP673, IleP675, and ThrP676, map to one face of the helix. The peptide binds in a hydrophobic pocket that may emulate its potential interaction with the host cell membrane. The long CDR H3 of the antibody extends beyond the bound peptide in an orientation that suggests that its apex could contact the viral membrane when 4E10 is bound to its membrane-proximal epitope. These structural insights should assist in the design of immunogens to elicit 4E10-like neutralizing responses.


    Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fab 4E10
L, M
214N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fab 4E10
H, I
232N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Envelope polyprotein GP160
P, Q
13N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
L
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.217 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 157.300α = 90.00
b = 45.100β = 113.80
c = 198.500γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance