2A94

Structure of Plasmodium falciparum lactate dehydrogenase complexed to APADH.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.160 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of Lactate Dehydrogenase from Plasmodium vivax: Complexes with NADH and APADH.

Chaikuad, A.Fairweather, V.Conners, R.Joseph-Horne, T.Turgut-Balik, D.Brady, R.L.

(2005) Biochemistry 44: 16221-16228

  • DOI: 10.1021/bi051416y
  • Primary Citation of Related Structures:  2A92, 2AA3

  • PubMed Abstract: 
  • Malaria caused by Plasmodium vivax is a major cause of global morbidity and, in rare cases, mortality. Lactate dehydrogenase is an essential Plasmodium protein and, therefore, a potential antimalarial drug target. Ideally, drugs directed against this ...

    Malaria caused by Plasmodium vivax is a major cause of global morbidity and, in rare cases, mortality. Lactate dehydrogenase is an essential Plasmodium protein and, therefore, a potential antimalarial drug target. Ideally, drugs directed against this target would be effective against both major species of Plasmodium, P. falciparum and P. vivax. In this study, the crystal structure of the lactate dehydrogenase protein from P. vivax has been solved and is compared to the equivalent structure from the P. falciparum enzyme. The active sites and cofactor binding pockets of both enzymes are found to be highly similar and differentiate these enzymes from their human counterparts. These structures suggest effective inhibition of both enzymes should be readily achievable with a common inhibitor. The crystal structures of both enzymes have also been solved in complex with the synthetic cofactor APADH. The unusual cofactor binding site in these Plasmodium enzymes is found to readily accommodate both NADH and APADH, explaining why the Plasmodium enzymes retain enzymatic activity in the presence of this synthetic cofactor.


    Organizational Affiliation

    Department of Biochemistry, University of Bristol, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
L-lactate dehydrogenase
A
321Plasmodium falciparumEC: 1.1.1.27
Find proteins for Q27743 (Plasmodium falciparum)
Go to UniProtKB:  Q27743
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AP0
Query on AP0

Download SDF File 
Download CCD File 
A
ACETYL PYRIDINE ADENINE DINUCLEOTIDE, REDUCED
C22 H32 N6 O14 P2
APPJAZKWQWZFMO-GKIAYCOLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.160 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 80.183α = 90.00
b = 86.208β = 90.00
c = 90.826γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
PDB_EXTRACTdata extraction
AMoREphasing
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-01-10
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-11
    Type: Advisory, Refinement description