6BZY

Structure of the Hepatitis C virus envelope glycoprotein E2 antigenic region 412-423 bound to the 22D11 broadly neutralizing antibody

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history. 


Literature

Immunogenetic and structural analysis of a class of HCV broadly neutralizing antibodies and their precursors.

Aleman, F., Tzarum, N., Kong, L., Nagy, K., Zhu, J., Wilson, I.A., Law, M.

(2018) Proc Natl Acad Sci U S A 115: 7569-7574

  • DOI: 10.1073/pnas.1802378115
  • Primary Citation of Related Structures:  
    6BZU, 6BZV, 6BZW, 6BZY

  • PubMed Abstract: 

    • Elicitation of broadly neutralizing antibodies (bnAbs) is a leading strategy in rational vaccine design against antigenically diverse pathogens. Here, we studied a panel of monoclonal antibodies (mAbs) from mice immunized with the hepatitis C virus (HCV) envelope glycoproteins E1E2 ...

    Elicitation of broadly neutralizing antibodies (bnAbs) is a leading strategy in rational vaccine design against antigenically diverse pathogens. Here, we studied a panel of monoclonal antibodies (mAbs) from mice immunized with the hepatitis C virus (HCV) envelope glycoproteins E1E2. Six of the mAbs recognize the conserved E2 antigenic site 412-423 (AS412) and cross-neutralize diverse HCV genotypes. Immunogenetic and structural analysis revealed that the antibodies originated from two different germline (GL) precursors and bind AS412 in a β-hairpin conformation. Intriguingly, the anti-HCV activity of one antibody lineage is associated with maturation of the light chain (LC), whereas the other lineage is dependent on heavy-chain (HC) maturation. Crystal structures of GL precursors of the LC-dependent lineage in complex with AS412 offer critical insights into the maturation process of bnAbs to HCV, providing a scientific foundation for utilizing the mouse model to study AS412-targeting vaccine candidates.

    Organizational Affiliation: 

    Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037; wilson@scripps.edu mlaw@scripps.edu.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
22D11 Heavy ChainA [auth H]220Mus musculusMutation(s): 0 
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Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
22D11 Light ChainB [auth L]218Mus musculusMutation(s): 0 
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Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
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  • Reference Sequence

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
E2 AS412 peptideC [auth B]13Hepacivirus CMutation(s): 0 
EC: 3.4.22 (UniProt), 3.4.21.98 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.7.7.48 (UniProt)
UniProt
Find proteins for P27958 (Hepatitis C virus genotype 1a (isolate H77))
Explore P27958 
Go to UniProtKB:  P27958
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27958
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.429α = 90
b = 79.85β = 90
c = 126.936γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing
Blu-Icedata collection

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI106005
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI123365

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-20
    Type: Initial release
  • Version 1.1: 2018-07-11
    Changes: Data collection, Database references
  • Version 1.2: 2018-07-25
    Changes: Data collection, Database references
  • Version 1.3: 2019-02-20
    Changes: Author supporting evidence, Data collection
  • Version 1.4: 2019-12-18
    Changes: Author supporting evidence
  • Version 1.5: 2022-02-02
    Changes: Database references, Structure summary