6B0S

Crystal structure of circumsporozoite protein aTSR domain in complex with 1710 antibody


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Rare PfCSP C-terminal antibodies induced by live sporozoite vaccination are ineffective against malaria infection.

Scally, S.W.Murugan, R.Bosch, A.Triller, G.Costa, G.Mordmuller, B.Kremsner, P.G.Sim, B.K.L.Hoffman, S.L.Levashina, E.A.Wardemann, H.Julien, J.P.

(2018) J Exp Med 215: 63-75

  • DOI: 10.1084/jem.20170869
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Antibodies against the central repeat of the Plasmodium falciparum (Pf) circumsporozoite protein (CSP) inhibit parasite activity and correlate with protection from malaria. However, the humoral response to the PfCSP C terminus (C-PfCSP) is l ...

    Antibodies against the central repeat of the Plasmodium falciparum (Pf) circumsporozoite protein (CSP) inhibit parasite activity and correlate with protection from malaria. However, the humoral response to the PfCSP C terminus (C-PfCSP) is less well characterized. Here, we describe B cell responses to C-PfCSP from European donors who underwent immunization with live Pf sporozoites (PfSPZ Challenge) under chloroquine prophylaxis (PfSPZ-CVac), and were protected against controlled human malaria infection. Out of 215 PfCSP-reactive monoclonal antibodies, only two unique antibodies were specific for C-PfCSP, highlighting the rare occurrence of C-PfCSP-reactive B cells in PfSPZ-CVac-induced protective immunity. These two antibodies showed poor sporozoite binding and weak inhibition of parasite traversal and development, and did not protect mice from infection with PfCSP transgenic Plasmodium berghei sporozoites. Structural analyses demonstrated that one antibody interacts with a polymorphic region overlapping two T cell epitopes, suggesting that variability in C-PfCSP may benefit parasite escape from humoral and cellular immunity. Our data identify important features underlying C-PfCSP shortcomings as a vaccine target.


    Organizational Affiliation

    Department of Immunology, University of Toronto, Toronto, Ontario, Canada.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
1710 antibody, heavy chainH226Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
1710 antibody, light chainL213Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Circumsporozoite proteinC82Plasmodium falciparumMutation(s): 0 
Gene Names: csp
Find proteins for M1V0B0 (Plasmodium falciparum)
Explore M1V0B0 
Go to UniProtKB:  M1V0B0
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download CCD File 
C, H, L
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
IPA
Query on IPA

Download CCD File 
C
ISOPROPYL ALCOHOL
C3 H8 O
KFZMGEQAYNKOFK-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.487α = 90
b = 70.683β = 90
c = 96.283γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XPREPdata scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-11-08
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Database references
  • Version 1.2: 2018-01-10
    Changes: Database references