4FGZ

Crystal Structure of Phosphoethanolamine Methyltransferase from Plasmodium falciparum in Complex with Amodiaquine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.994 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of phosphoethanolamine methyltransferase from Plasmodium falciparum in complex with amodiaquine.

Lee, S.G.Alpert, T.D.Jez, J.M.

(2012) Bioorg.Med.Chem.Lett. 22: 4990-4993

  • DOI: 10.1016/j.bmcl.2012.06.032

  • PubMed Abstract: 
  • Phosphoethanolamine N-methyltransferase (PMT) is essential for phospholipid biogenesis in the malarial parasite Plasmodium falciparum. PfPMT catalyzes the triple methylation of phosphoethanolamine to produce phosphocholine, which is then used for pho ...

    Phosphoethanolamine N-methyltransferase (PMT) is essential for phospholipid biogenesis in the malarial parasite Plasmodium falciparum. PfPMT catalyzes the triple methylation of phosphoethanolamine to produce phosphocholine, which is then used for phosphatidylcholine synthesis. Here we describe the 2.0Å resolution X-ray crystal structure of PfPMT in complex with amodiaquine. To better characterize inhibition of PfPMT by amodiaquine, we determined the IC(50) values of a series of aminoquinolines using a direct radiochemical assay. Both structural and functional analyses provide a possible approach for the development of new small molecule inhibitors of PfPMT.


    Organizational Affiliation

    Department of Biology, Washington University, St. Louis, MO 63130, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphoethanolamine N-methyltransferase
A, B
266Plasmodium falciparumMutation(s): 0 
Gene Names: PMT
Find proteins for Q6T755 (Plasmodium falciparum)
Go to UniProtKB:  Q6T755
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
SAH
Query on SAH

Download SDF File 
Download CCD File 
A, B
S-ADENOSYL-L-HOMOCYSTEINE
C14 H20 N6 O5 S
ZJUKTBDSGOFHSH-WFMPWKQPSA-N
 Ligand Interaction
CQA
Query on CQA

Download SDF File 
Download CCD File 
A, B
4-[(7-CHLOROQUINOLIN-4-YL)AMINO]-2-[(DIETHYLAMINO)METHYL]PHENOL
AMODIAQUINE, FLAVOQUINE
C20 H22 Cl N3 O
OVCDSSHSILBFBN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CQAIC50: 1350000 nM (100) BINDINGDB
CQAIC50: 1350000 nM BINDINGMOAD
CQAIC50: 1350000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.994 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.181 
  • Space Group: P 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 66.051α = 90.00
b = 60.639β = 90.01
c = 68.151γ = 90.00
Software Package:
Software NamePurpose
HKL-3000data collection
PHENIXrefinement
PHASERphasing
HKL-3000data reduction
HKL-3000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-25
    Type: Initial release
  • Version 1.1: 2012-08-01
    Type: Database references