6OC7

HMP42 Fab in complex with Protein G

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.169 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history. 


Literature

A generalized HIV vaccine design strategy for priming of broadly neutralizing antibody responses.

Steichen, J.M., Lin, Y.C., Havenar-Daughton, C., Pecetta, S., Ozorowski, G., Willis, J.R., Toy, L., Sok, D., Liguori, A., Kratochvil, S., Torres, J.L., Kalyuzhniy, O., Melzi, E., Kulp, D.W., Raemisch, S., Hu, X., Bernard, S.M., Georgeson, E., Phelps, N., Adachi, Y., Kubitz, M., Landais, E., Umotoy, J., Robinson, A., Briney, B., Wilson, I.A., Burton, D.R., Ward, A.B., Crotty, S., Batista, F.D., Schief, W.R.

(2019) Science 366

  • DOI: 10.1126/science.aax4380
  • Primary Citation of Related Structures:  
    6DFG, 6DFH, 6NF5, 6NFC, 6OC7

  • PubMed Abstract: 

    • Vaccine induction of broadly neutralizing antibodies (bnAbs) to HIV remains a major challenge. Germline-targeting immunogens hold promise for initiating the induction of certain bnAb classes; yet for most bnAbs, a strong dependence on antibody heavy chain complementarity-determining region 3 (HCDR3) is a major barrier ...

    Vaccine induction of broadly neutralizing antibodies (bnAbs) to HIV remains a major challenge. Germline-targeting immunogens hold promise for initiating the induction of certain bnAb classes; yet for most bnAbs, a strong dependence on antibody heavy chain complementarity-determining region 3 (HCDR3) is a major barrier. Exploiting ultradeep human antibody sequencing data, we identified a diverse set of potential antibody precursors for a bnAb with dominant HCDR3 contacts. We then developed HIV envelope trimer-based immunogens that primed responses from rare bnAb-precursor B cells in a mouse model and bound a range of potential bnAb-precursor human naïve B cells in ex vivo screens. Our repertoire-guided germline-targeting approach provides a framework for priming the induction of many HIV bnAbs and could be applied to most HCDR3-dominant antibodies from other pathogens.

    Organizational Affiliation: 

    The Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02139, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heavy chain of HMP42 FabA [auth H]231Homo sapiensMutation(s): 0 
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Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Light chain for HMP42 FabB [auth L]214Homo sapiensMutation(s): 0 
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Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Immunoglobulin G-binding protein GC66Streptococcus sp. 'group GMutation(s): 0 
Gene Names: spg
UniProt
Find proteins for P19909 (Streptococcus sp. group G)
Explore P19909 
Go to UniProtKB:  P19909
Entity Groups  
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UniProt GroupP19909
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.169 
  • Space Group: I 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.132α = 90
b = 54.388β = 90.01
c = 103.081γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

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 StatesUM1 Al100663

Revision History  (Full details and data files)

  • Version 1.0: 2020-02-05
    Type: Initial release