3EBI

Structure of the M1 Alanylaminopeptidase from malaria complexed with the phosphinate dipeptide analog


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.177 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural basis for the inhibition of the essential Plasmodium falciparum M1 neutral aminopeptidase

McGowan, S.Porter, C.J.Lowther, J.Stack, C.M.Golding, S.J.Skinner-Adams, T.S.Trenholme, K.R.Teuscher, F.Donnelly, S.M.Grembecka, J.Mucha, A.Kafarski, P.Degori, R.Buckle, A.M.Gardiner, D.L.Whisstock, J.C.Dalton, J.P.

(2009) Proc Natl Acad Sci U S A 106: 2537-2542

  • DOI: 10.1073/pnas.0807398106
  • Primary Citation of Related Structures:  
    3EBH, 3EBI, 3EBG

  • PubMed Abstract: 
  • Plasmodium falciparum parasites are responsible for the major global disease malaria, which results in >2 million deaths each year. With the rise of drug-resistant malarial parasites, novel drug targets and lead compounds are urgently required for th ...

    Plasmodium falciparum parasites are responsible for the major global disease malaria, which results in >2 million deaths each year. With the rise of drug-resistant malarial parasites, novel drug targets and lead compounds are urgently required for the development of new therapeutic strategies. Here, we address this important problem by targeting the malarial neutral aminopeptidases that are involved in the terminal stages of hemoglobin digestion and essential for the provision of amino acids used for parasite growth and development within the erythrocyte. We characterize the structure and substrate specificity of one such aminopeptidase, PfA-M1, a validated drug target. The X-ray crystal structure of PfA-M1 alone and in complex with the generic inhibitor, bestatin, and a phosphinate dipeptide analogue with potent in vitro and in vivo antimalarial activity, hPheP[CH(2)]Phe, reveals features within the protease active site that are critical to its function as an aminopeptidase and can be exploited for drug development. These results set the groundwork for the development of antimalarial therapeutics that target the neutral aminopeptidases of the parasite.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology and Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Clayton, Victoria, 3800, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
M1 family aminopeptidaseA890Plasmodium falciparum FcB1/ColumbiaMutation(s): 7 
EC: 3.4.11
Find proteins for O96935 (Plasmodium falciparum (isolate FcB1 / Columbia))
Explore O96935 
Go to UniProtKB:  O96935
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.852α = 90
b = 108.633β = 90
c = 118.325γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-01-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance