6AZX

Crystal structure of the neutralizing anti-circumsporozoite protein 663 antibody


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Natural Parasite Exposure Induces Protective Human Anti-Malarial Antibodies.

Triller, G.Scally, S.W.Costa, G.Pissarev, M.Kreschel, C.Bosch, A.Marois, E.Sack, B.K.Murugan, R.Salman, A.M.Janse, C.J.Khan, S.M.Kappe, S.H.I.Adegnika, A.A.Mordmuller, B.Levashina, E.A.Julien, J.P.Wardemann, H.

(2017) Immunity 47: 1197-1209.e10

  • DOI: 10.1016/j.immuni.2017.11.007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Antibodies against the NANP repeat of circumsporozoite protein (CSP), the major surface antigen of Plasmodium falciparum (Pf) sporozoites, can protect from malaria in animal models but protective humoral immunity is difficult to induce in humans. Her ...

    Antibodies against the NANP repeat of circumsporozoite protein (CSP), the major surface antigen of Plasmodium falciparum (Pf) sporozoites, can protect from malaria in animal models but protective humoral immunity is difficult to induce in humans. Here we cloned and characterized rare affinity-matured human NANP-reactive memory B cell antibodies elicited by natural Pf exposure that potently inhibited parasite transmission and development in vivo. We unveiled the molecular details of antibody binding to two distinct protective epitopes within the NANP repeat. NANP repeat recognition was largely mediated by germline encoded and immunoglobulin (Ig) heavy-chain complementarity determining region 3 (HCDR3) residues, whereas affinity maturation contributed predominantly to stabilizing the antigen-binding site conformation. Combined, our findings illustrate the power of exploring human anti-CSP antibody responses to develop tools for malaria control in the mammalian and the mosquito vector and provide a molecular basis for the structure-based design of next-generation CSP malaria vaccines.


    Organizational Affiliation

    B Cell Immunology, German Cancer Research Center, Heidelberg, 69120, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
663 antibody, heavy chain
C, A
223N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
663 antibody, light chain
D, B
218N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.206 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 80.283α = 90.00
b = 138.085β = 90.00
c = 206.674γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXphasing
SHELXPREPdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-12-13
    Type: Initial release
  • Version 1.1: 2018-01-24
    Type: Database references