5JQK

The Xray Crystal Structure of P. falciparum Aminopeptidase P


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and substrate fingerprint of aminopeptidase P from Plasmodium falciparum.

Drinkwater, N.Sivaraman, K.K.Bamert, R.S.Rut, W.Mohamed, K.Vinh, N.B.Scammells, P.J.Drag, M.McGowan, S.

(2016) Biochem.J. 473: 3189-3204

  • DOI: 10.1042/BCJ20160550
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Malaria is one of the world's most prevalent parasitic diseases, with over 200 million cases annually. Alarmingly, the spread of drug-resistant parasites threatens the effectiveness of current antimalarials and has made the development of novel thera ...

    Malaria is one of the world's most prevalent parasitic diseases, with over 200 million cases annually. Alarmingly, the spread of drug-resistant parasites threatens the effectiveness of current antimalarials and has made the development of novel therapeutic strategies a global health priority. Malaria parasites have a complicated lifecycle, involving an asymptomatic 'liver stage' and a symptomatic 'blood stage'. During the blood stage, the parasites utilise a proteolytic cascade to digest host hemoglobin, which produces free amino acids absolutely necessary for parasite growth and reproduction. The enzymes required for hemoglobin digestion are therefore attractive therapeutic targets. The final step of the cascade is catalyzed by several metalloaminopeptidases, including aminopeptidase P (APP). We developed a novel platform to examine the substrate fingerprint of APP from Plasmodium falciparum (PfAPP) and to show that it can catalyze the removal of any residue immediately prior to a proline. Further, we have determined the crystal structure of PfAPP and present the first examination of the 3D structure of this essential malarial enzyme. Together, these analyses provide insights into potential mechanisms of inhibition that could be used to develop novel antimalarial therapeutics.


    Organizational Affiliation

    Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton Campus, Melbourne, VIC 3800, Australia.,Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Technology, Wroclaw, Poland.,Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, Parkville, VIC 3052, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peptidase, putative
A, B
664N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.189 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 146.740α = 90.00
b = 100.070β = 105.37
c = 106.660γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement
MOSFLMdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (Australia)Australia1063786

Revision History 

  • Version 1.0: 2016-08-31
    Type: Initial release
  • Version 1.1: 2016-10-12
    Type: Database references
  • Version 1.2: 2017-09-27
    Type: Author supporting evidence, Data collection, Derived calculations