6RCU

PfRH5 bound to monoclonal antibodies R5.004 and R5.016


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.339 
  • R-Value Work: 0.285 
  • R-Value Observed: 0.287 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Human Antibodies that Slow Erythrocyte Invasion Potentiate Malaria-Neutralizing Antibodies.

Alanine, D.G.W.Quinkert, D.Kumarasingha, R.Mehmood, S.Donnellan, F.R.Minkah, N.K.Dadonaite, B.Diouf, A.Galaway, F.Silk, S.E.Jamwal, A.Marshall, J.M.Miura, K.Foquet, L.Elias, S.C.Labbe, G.M.Douglas, A.D.Jin, J.Payne, R.O.Illingworth, J.J.Pattinson, D.J.Pulido, D.Williams, B.G.de Jongh, W.A.Wright, G.J.Kappe, S.H.I.Robinson, C.V.Long, C.A.Crabb, B.S.Gilson, P.R.Higgins, M.K.Draper, S.J.

(2019) Cell 178: 216-228.e21

  • DOI: 10.1016/j.cell.2019.05.025
  • Primary Citation of Related Structures:  
    6RCO, 6RCQ, 6RCS, 6RCU, 6RCV

  • PubMed Abstract: 
  • The Plasmodium falciparum reticulocyte-binding protein homolog 5 (PfRH5) is the leading target for next-generation vaccines against the disease-causing blood-stage of malaria. However, little is known about how human antibodies confer functional immunity against this antigen ...

    The Plasmodium falciparum reticulocyte-binding protein homolog 5 (PfRH5) is the leading target for next-generation vaccines against the disease-causing blood-stage of malaria. However, little is known about how human antibodies confer functional immunity against this antigen. We isolated a panel of human monoclonal antibodies (mAbs) against PfRH5 from peripheral blood B cells from vaccinees in the first clinical trial of a PfRH5-based vaccine. We identified a subset of mAbs with neutralizing activity that bind to three distinct sites and another subset of mAbs that are non-functional, or even antagonistic to neutralizing antibodies. We also identify the epitope of a novel group of non-neutralizing antibodies that significantly reduce the speed of red blood cell invasion by the merozoite, thereby potentiating the effect of all neutralizing PfRH5 antibodies as well as synergizing with antibodies targeting other malaria invasion proteins. Our results provide a roadmap for structure-guided vaccine development to maximize antibody efficacy against blood-stage malaria.


    Organizational Affiliation

    The Jenner Institute, University of Oxford, Old Road Campus Research Building, Oxford OX3 7DQ, UK. Electronic address: simon.draper@ndm.ox.ac.uk.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Reticulocyte binding protein homologue 5A501Plasmodium falciparum 3D7Mutation(s): 0 
Gene Names: PF3D7_0424100RH5PFD1145c
UniProt
Find proteins for Q8IFM5 (Plasmodium falciparum (isolate 3D7))
Explore Q8IFM5 
Go to UniProtKB:  Q8IFM5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8IFM5
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
R5.004 heavy chainB232Homo sapiensMutation(s): 0 
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
R5.004 light chainC219Homo sapiensMutation(s): 0 
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
R5.016 light chainD219Homo sapiensMutation(s): 0 
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
R5.016 heavy chainE464Homo sapiensMutation(s): 0 
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.339 
  • R-Value Work: 0.285 
  • R-Value Observed: 0.287 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 235.15α = 90
b = 58.784β = 106.41
c = 116.794γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2019-06-26
    Type: Initial release
  • Version 1.1: 2019-07-10
    Changes: Data collection, Database references
  • Version 1.2: 2019-08-21
    Changes: Data collection