1W81

Crystal structure of apical membrane antigen 1 from Plasmodium vivax


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of the Malaria Vaccine Candidate Apical Membrane Antigen 1

Pizarro, J.C.Vulliez-Le Normand, B.Chesne-Seck, M.-L.Collins, C.Withers-Martinez, C.Hackett, F.Blackman, M.Faber, B.Remarque, E.Kocken, C.H.M.Thomas, A.W.Bentley, G.A.

(2005) Science 308: 408

  • DOI: 10.1126/science.1107449
  • Primary Citation of Related Structures:  
  • Also Cited By: 2J4W

  • PubMed Abstract: 
  • Apical membrane antigen 1 from Plasmodium is a leading malaria vaccine candidate. The protein is essential for host-cell invasion, but its molecular function is unknown. The crystal structure of the three domains comprising the ectoplasmic region of ...

    Apical membrane antigen 1 from Plasmodium is a leading malaria vaccine candidate. The protein is essential for host-cell invasion, but its molecular function is unknown. The crystal structure of the three domains comprising the ectoplasmic region of the antigen from P. vivax, solved at 1.8 angstrom resolution, shows that domains I and II belong to the PAN motif, which defines a superfamily of protein folds implicated in receptor binding. We also mapped the epitope of an invasion-inhibitory monoclonal antibody specific for the P. falciparum ortholog and modeled this to the structure. The location of the epitope and current knowledge on structure-function correlations for PAN domains together suggest a receptor-binding role during invasion in which domain II plays a critical part. These results are likely to aid vaccine and drug design.


    Organizational Affiliation

    Unité d'Immunologie Structurale, Centre National de la Recherche Scientifique, URA 2185, Institut Pasteur, 25 rue du Docteur Roux, 75724 Paris, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
APICAL MEMBRANE ANTIGEN 1
A
447Plasmodium vivaxMutation(s): 3 
Gene Names: AMA1
Find proteins for O61130 (Plasmodium vivax)
Go to UniProtKB:  O61130
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IMD
Query on IMD

Download SDF File 
Download CCD File 
A
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.194 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 54.097α = 90.00
b = 76.096β = 90.00
c = 103.925γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SHARPphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance