4JKP

Restricting HIV-1 Pathways for Escape using Rationally-Designed Anti-HIV-1 Antibodies


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.82 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Restricting HIV-1 pathways for escape using rationally designed anti-HIV-1 antibodies.

Diskin, R.Klein, F.Horwitz, J.A.Halper-Stromberg, A.Sather, D.N.Marcovecchio, P.M.Lee, T.West, A.P.Gao, H.Seaman, M.S.Stamatatos, L.Nussenzweig, M.C.Bjorkman, P.J.

(2013) J.Exp.Med. 210: 1235-1249

  • DOI: 10.1084/jem.20130221

  • PubMed Abstract: 
  • Recently identified broadly neutralizing antibodies (bNAbs) that potently neutralize most HIV-1 strains are key to potential antibody-based therapeutic approaches to combat HIV/AIDS in the absence of an effective vaccine. Increasing bNAb potencies an ...

    Recently identified broadly neutralizing antibodies (bNAbs) that potently neutralize most HIV-1 strains are key to potential antibody-based therapeutic approaches to combat HIV/AIDS in the absence of an effective vaccine. Increasing bNAb potencies and resistance to common routes of HIV-1 escape through mutation would facilitate their use as therapeutics. We previously used structure-based design to create the bNAb NIH45-46(G54W), which exhibits superior potency and/or breadth compared with other bNAbs. We report new, more effective NIH45-46(G54W) variants designed using analyses of the NIH45-46-gp120 complex structure and sequences of NIH45-46(G54W)-resistant HIV-1 strains. One variant, 45-46m2, neutralizes 96% of HIV-1 strains in a cross-clade panel and viruses isolated from an HIV-infected individual that are resistant to all other known bNAbs, making it the single most broad and potent anti-HIV-1 antibody to date. A description of its mechanism is presented based on a 45-46m2-gp120 crystal structure. A second variant, 45-46m7, designed to thwart HIV-1 resistance to NIH45-46(G54W) arising from mutations in a gp120 consensus sequence, targets a common route of HIV-1 escape. In combination, 45-46m2 and 45-46m7 reduce the possible routes for the evolution of fit viral escape mutants in HIV-1YU-2-infected humanized mice, with viremic control exhibited when a third antibody, 10-1074, was added to the combination.


    Organizational Affiliation

    Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA. ron.diskin@weizmann.ac.il




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
gp120
G
361Human immunodeficiency virus 1Gene Names: env
Find proteins for Q0ED31 (Human immunodeficiency virus 1)
Go to UniProtKB:  Q0ED31
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Heavy chain of antibody 45-46M2
H
229N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Light chain of antibody 45-46M2
L
210N/AN/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 
G
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
BMA
Query on BMA

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

Download SDF File 
Download CCD File 
G, L
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
H
L-PEPTIDE LINKINGC5 H7 N O3GLU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.82 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 69.330α = 90.00
b = 70.490β = 90.00
c = 232.220γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata scaling
PHASERphasing
XDSdata reduction
Blu-Icedata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-15
    Type: Initial release
  • Version 1.1: 2013-07-24
    Type: Database references
  • Version 1.2: 2017-11-15
    Type: Refinement description