RCSB PDB - 9AXD: HIV BG505.v5.2 (N289/N241) SOSIP Env in Complex with gp120-Interface pAb from Rh.33203

 9AXD

HIV BG505.v5.2 (N289/N241) SOSIP Env in Complex with gp120-Interface pAb from Rh.33203


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Anti-immune complex antibodies are elicited during repeated immunization with HIV Env immunogens.

Brown, S.Antanasijevic, A.Sewall, L.M.Garcia, D.M.Brouwer, P.J.M.Sanders, R.W.Ward, A.B.

(2025) Sci Immunol 10: eadp5218-eadp5218

  • DOI: https://doi.org/10.1126/sciimmunol.adp5218
  • Primary Citation of Related Structures:  
    9ATZ, 9AXD, 9AXI, 9AXK, 9AY6, 9AYS, 9AYV

  • PubMed Abstract: 

    Vaccination strategies against HIV-1 aim to elicit broadly neutralizing antibodies (bnAbs) using prime-boost regimens with HIV envelope (Env) immunogens. Epitope mapping has shown that early antibody responses are directed to easily accessible nonneutralizing epitopes on Env instead of bnAb epitopes. Autologously neutralizing antibody responses appear upon boosting, once immunodominant epitopes are saturated. Here, we use electron microscopy-based polyclonal epitope mapping (EMPEM) to elucidate how repeated immunization with HIV Env SOSIP immunogens results in the generation of Ab2α anti-idiotypic antibodies in rabbits and rhesus macaques. We present the structures of six anti-immune complex antibodies and find that they target idiotopes composed of framework regions of antibodies bound to Env. Examination of cryo-electron microscopy density enabled prediction of sequences for an anti-immune complex antibody, the paratope of which is enriched with aromatic amino acids. This work sheds light on current vaccine development efforts for HIV, as well as for other pathogens in which repeated exposure to antigen is required.


  • Organizational Affiliation

    Department of Integrative, Structural and Computational Biology, Scripps Research, La Jolla, CA, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
gp120-Interface Polyclonal Antibody - Predicted Heavy ChainA [auth H]116Macaca mulattaMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
gp120-Interface Polyclonal Antibody - Predicted Light ChainB [auth L]105Macaca mulattaMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Surface protein gp120C [auth A],
E [auth C],
G [auth E]
514Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
UniProt
Find proteins for Q2N0S6 (Human immunodeficiency virus type 1)
Explore Q2N0S6 
Go to UniProtKB:  Q2N0S6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2N0S6
Glycosylation
Glycosylation Sites: 19
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Transmembrane protein gp41D [auth B],
F [auth D],
H [auth F]
155Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
UniProt
Find proteins for Q2N0S6 (Human immunodeficiency virus type 1)
Explore Q2N0S6 
Go to UniProtKB:  Q2N0S6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2N0S6
Glycosylation
Glycosylation Sites: 3
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 6
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseDA [auth d],
J [auth I],
T
5N-Glycosylation
Entity ID: 7
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
N
3N-Glycosylation
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
AB [auth C]
BB [auth C]
CB [auth C]
DB [auth C]
EB [auth C]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION3.0

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01 AI136621
Bill & Melinda Gates FoundationUnited StatesINV-002916
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesUM1 AI100663

Revision History  (Full details and data files)

  • Version 1.0: 2025-01-29
    Type: Initial release