5KZC

Crystal structure of an HIV-1 gp120 engineered outer domain with a Man9 glycan at position N276, in complex with broadly neutralizing antibody VRC01

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

Minimally Mutated HIV-1 Broadly Neutralizing Antibodies to Guide Reductionist Vaccine Design.

Jardine, J.G., Sok, D., Julien, J.P., Briney, B., Sarkar, A., Liang, C.H., Scherer, E.A., Henry Dunand, C.J., Adachi, Y., Diwanji, D., Hsueh, J., Jones, M., Kalyuzhniy, O., Kubitz, M., Spencer, S., Pauthner, M., Saye-Francisco, K.L., Sesterhenn, F., Wilson, P.C., Galloway, D.M., Stanfield, R.L., Wilson, I.A., Burton, D.R., Schief, W.R.

(2016) Plos Pathog. 12: e1005815-e1005815

  • DOI: 10.1371/journal.ppat.1005815
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • An optimal HIV vaccine should induce broadly neutralizing antibodies (bnAbs) that neutralize diverse viral strains and subtypes. However, potent bnAbs develop in only a small fraction of HIV-infected individuals, all contain rare features such as ext ...

    An optimal HIV vaccine should induce broadly neutralizing antibodies (bnAbs) that neutralize diverse viral strains and subtypes. However, potent bnAbs develop in only a small fraction of HIV-infected individuals, all contain rare features such as extensive mutation, insertions, deletions, and/or long complementarity-determining regions, and some are polyreactive, casting doubt on whether bnAbs to HIV can be reliably induced by vaccination. We engineered two potent VRC01-class bnAbs that minimized rare features. According to a quantitative features frequency analysis, the set of features for one of these minimally mutated bnAbs compared favorably with all 68 HIV bnAbs analyzed and was similar to antibodies elicited by common vaccines. This same minimally mutated bnAb lacked polyreactivity in four different assays. We then divided the minimal mutations into spatial clusters and dissected the epitope components interacting with those clusters, by mutational and crystallographic analyses coupled with neutralization assays. Finally, by synthesizing available data, we developed a working-concept boosting strategy to select the mutation clusters in a logical order following a germline-targeting prime. We have thus developed potent HIV bnAbs that may be more tractable vaccine goals compared to existing bnAbs, and we have proposed a strategy to elicit them. This reductionist approach to vaccine design, guided by antibody and antigen structure, could be applied to design candidate vaccines for other HIV bnAbs or protective Abs against other pathogens.

    Organizational Affiliation: 

    Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VRC01 Fab heavy chain
H, B, E
224N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Engineered outer domain of gp120
A, C, F
182N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
VRC01 Fab light chain
L, D, G
210N/AMutation(s): 0 
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, C, F
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
BMA
Query on BMA
Download SDF File 
Download CCD File 
A, C, F
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG
Download SDF File 
Download CCD File 
A, C, F
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.223 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 113.510α = 90.00
b = 113.510β = 90.00
c = 412.520γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
PHENIXrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesP01 AI82362
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesR01 AI084817
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesCHAVI-ID 1UM1AI100663
International AIDS Vaccine Initiative Neutralizing Antibody Consortium and CenterUnited States--
Bill & Melinda Gates FoundationUnited States--

Revision History 

  • Version 1.0: 2016-08-10
    Type: Initial release
  • Version 1.1: 2016-09-07
    Type: Database references
  • Version 1.2: 2017-09-06
    Type: Author supporting evidence, Derived calculations