1B9W

C-TERMINAL MEROZOITE SURFACE PROTEIN 1 FROM PLASMODIUM CYNOMOLGI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.212 

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This is version 1.2 of the entry. See complete history


Literature

The crystal structure of C-terminal merozoite surface protein 1 at 1.8 A resolution, a highly protective malaria vaccine candidate.

Chitarra, V.Holm, I.Bentley, G.A.Petres, S.Longacre, S.

(1999) Mol Cell 3: 457-464

  • DOI: 10.1016/s1097-2765(00)80473-6
  • Primary Citation of Related Structures:  
    1B9W

  • PubMed Abstract: 
  • The C-terminal proteolytic processing product of merozoite surface protein 1 (MSP1) appears essential for successful erythrocyte invasion by the malarial parasite, Plasmodium. We have determined the crystal structure at 1.8 A resolution of a soluble baculovirus-recombinant form of the protein from P ...

    The C-terminal proteolytic processing product of merozoite surface protein 1 (MSP1) appears essential for successful erythrocyte invasion by the malarial parasite, Plasmodium. We have determined the crystal structure at 1.8 A resolution of a soluble baculovirus-recombinant form of the protein from P. cynomolgi, which confers excellent protective efficacy in primate vaccination trials. The structure comprises two EGF-like domains, and sequence comparisons strongly suggest that the same conformation is present in all species of Plasmodium, including P. falciparum and P. vivax, which are pathogenic in man. In particular, conserved interdomain contacts between the two EGF modules should preserve the compact form of the molecule in all species. Implications of the crystal structure for anti-malarial vaccine development are discussed.


    Organizational Affiliation

    Unité d'Immunologie Structurale (CNRS URA 1961), Institut Pasteur, Paris, France.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (MEROZOITE SURFACE PROTEIN 1)A95Plasmodium cynomolgiMutation(s): 0 
Gene Names: MSP1
UniProt
Find proteins for Q25659 (Plasmodium cynomolgi)
Explore Q25659 
Go to UniProtKB:  Q25659
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ25659
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.212 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.77α = 90
b = 43.77β = 90
c = 92.04γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHARPphasing
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-05-24
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance