6H5N

Plasmodium falciparum Pfs48/45 C-terminal domain bound to monoclonal antibody 85RF45.1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.23 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.261 
  • R-Value Observed: 0.262 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for recognition of the malaria vaccine candidate Pfs48/45 by a transmission blocking antibody.

Lennartz, F.Brod, F.Dabbs, R.Miura, K.Mekhaiel, D.Marini, A.Jore, M.M.Sogaard, M.M.Jorgensen, T.de Jongh, W.A.Sauerwein, R.W.Long, C.A.Biswas, S.Higgins, M.K.

(2018) Nat Commun 9: 3822-3822

  • DOI: https://doi.org/10.1038/s41467-018-06340-9
  • Primary Citation of Related Structures:  
    6H5N

  • PubMed Abstract: 

    The quest to develop an effective malaria vaccine remains a major priority in the fight against global infectious disease. An approach with great potential is a transmission-blocking vaccine which induces antibodies that prevent establishment of a productive infection in mosquitos that feed on infected humans, thereby stopping the transmission cycle. One of the most promising targets for such a vaccine is the gamete surface protein, Pfs48/45. Here we establish a system for production of full-length Pfs48/45 and use this to raise a panel of monoclonal antibodies. We map the binding regions of these antibodies on Pfs48/45 and correlate the location of their epitopes with their transmission-blocking activity. Finally, we present the structure of the C-terminal domain of Pfs48/45 bound to the most potent transmission-blocking antibody, and provide key molecular information for future structure-guided immunogen design.


  • Organizational Affiliation

    Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Gametocyte surface protein P45/48
A, D
136Plasmodium falciparum 3D7Mutation(s): 0 
Gene Names: PF45/48PFS45-48PFS45/48PF13_0247
UniProt
Find proteins for Q8I6T1 (Plasmodium falciparum (isolate 3D7))
Explore Q8I6T1 
Go to UniProtKB:  Q8I6T1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8I6T1
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Antibody 85RF45.1 light chain
B, E
212Rattus norvegicusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Antibody 85RF45.1 heavy chain
C, F
220Rattus norvegicusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.23 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.261 
  • R-Value Observed: 0.262 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.69α = 90
b = 165.39β = 90
c = 189.66γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
xia2data reduction
xia2data scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomMR/R001138/1
Wellcome TrustUnited Kingdom101020/Z/13/Z

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-26
    Type: Initial release
  • Version 1.1: 2018-10-03
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Refinement description