2MU8

Residues belonging the n-terminal region derived of merozoite surface protein-2 of plasmodium falciparum

• PDB DOI: https://doi.org/10.2210/pdb2MU8/pdb
• BMRB: 25202

• Classification: CELL INVASION
• Organism(s): Plasmodium falciparum
• Mutation(s): No 


• Deposited: 2014-09-04 Released: 2014-11-12 
• Deposition Author(s): Cifuentes, G., Patarroyo, M.E., Urquiza, M., Ramirez, L.E., Reyes, C., Rodriguez, R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 1 
• Selection Criteria: structures with the lowest energy 

Literature

Distorting malaria peptide backbone structure to enable fitting into MHC class II molecules renders modified peptides immunogenic and protective.

Cifuentes, G., Patarroyo, M.E., Urquiza, M., Ramirez, L.E., Reyes, C., Rodriguez, R.

(2003) J Med Chem 46: 2250-2253

• PubMed: 12747797 
• DOI: https://doi.org/10.1021/jm020440w
• Primary Citation of Related Structures:  
  2MU8


• PubMed Abstract: 
  

  The conserved, nonantigenic, nonimmunogenic malaria Merozoite Surface Protein-2 peptide 1, having high affinity for red blood cells, was rendered immunogenic and protective in Aotus monkeys by specifically changing some critical residues. The NMR structure revealed a switch from classical type III' into distorted III' and III beta turns in the protective peptides. These changes may lead to a better fit into the Aotus MHC class II human HLA-DRbeta1 12 molecule equivalent, thus activating the immune system.

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Organizational Affiliation: 

Fundación Instituto de Inmunología de Colombia, Carrera 50 No. 26-00 Bogotá, Colombia.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 2.4 kDa 
• Atom Count: 167 
• Modelled Residue Count: 20 
• Deposited Residue Count: 20 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MSP-2 peptide	A	20	Plasmodium falciparum	Mutation(s): 0
UniProt
Find proteins for P50498 (Plasmodium falciparum (isolate 3D7)) Explore P50498  Go to UniProtKB:  P50498

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 1 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-11-12 
Deposition Author(s): Cifuentes, G., Patarroyo, M.E., Urquiza, M., Ramirez, L.E., Reyes, C., Rodriguez, R.

Revision History  

• Version 1.0: 2014-11-12
  Type: Initial release
  
• Version 1.1: 2015-12-09
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Data collection, Database references, Other