7ZXG

Pfs48/45 bound to Fab fragment of monoclonal antibody 10D8


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.20 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.259 
  • R-Value Observed: 0.261 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Literature

Structure of the malaria vaccine candidate Pfs48/45 and its recognition by transmission blocking antibodies.

Ko, K.T.Lennartz, F.Mekhaiel, D.Guloglu, B.Marini, A.Deuker, D.J.Long, C.A.Jore, M.M.Miura, K.Biswas, S.Higgins, M.K.

(2022) Nat Commun 13: 5603-5603

  • DOI: https://doi.org/10.1038/s41467-022-33379-6
  • Primary Citation of Related Structures:  
    7ZWF, 7ZWI, 7ZWM, 7ZXF, 7ZXG

  • PubMed Abstract: 

    An effective malaria vaccine remains a global health priority and vaccine immunogens which prevent transmission of the parasite will have important roles in multi-component vaccines. One of the most promising candidates for inclusion in a transmission-blocking malaria vaccine is the gamete surface protein Pfs48/45, which is essential for development of the parasite in the mosquito midgut. Indeed, antibodies which bind Pfs48/45 can prevent transmission if ingested with the parasite as part of the mosquito bloodmeal. Here we present the structure of full-length Pfs48/45, showing its three domains to form a dynamic, planar, triangular arrangement. We reveal where transmission-blocking and non-blocking antibodies bind on Pfs48/45. Finally, we demonstrate that antibodies which bind across this molecule can be transmission-blocking. These studies will guide the development of future Pfs48/45-based vaccine immunogens.


  • Organizational Affiliation

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


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Gametocyte surface protein P45/48
A, D
428Plasmodium falciparumMutation(s): 0 
Gene Names: PF45/48PFS45-48PFS45/48PF13_0247PF3D7_1346700
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
Glycosylation
Glycosylation Sites: 4
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
10D8 heavy chain
B, E
466Mus musculusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
10D8 light chain
C, F
240Mus musculusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 4
MoleculeChains Length2D Diagram Glycosylation3D Interactions
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-glucopyranose
G
4N-Glycosylation
Glycosylation Resources
GlyTouCan:  G22573RC
GlyCosmos:  G22573RC
GlyGen:  G22573RC
Entity ID: 5
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
H, I, K
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Entity ID: 6
MoleculeChains Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
J
3N-Glycosylation
Glycosylation Resources
GlyTouCan:  G44266EX
GlyCosmos:  G44266EX
GlyGen:  G44266EX
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.20 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.259 
  • R-Value Observed: 0.261 
  • Space Group: P 21 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.771α = 90
b = 125.803β = 90
c = 216.601γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
xia2data reduction
xia2data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (MRC, United Kingdom)United KingdomMR/R001138/1
Wellcome TrustUnited Kingdom218482/Z/19/Z
Wellcome TrustUnited Kingdom101020/Z/13/Z

Revision History  (Full details and data files)

  • Version 1.0: 2022-06-22
    Type: Initial release
  • Version 1.1: 2022-06-29
    Changes: Derived calculations
  • Version 1.2: 2022-10-12
    Changes: Database references
  • Version 1.3: 2024-01-31
    Changes: Data collection, Refinement description
  • Version 1.4: 2024-11-06
    Changes: Structure summary