4CAF

Plasmodium vivax N-myristoyltransferase in complex with a benzothiophene inhibitor (compound 34a)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Design and Synthesis of High Affinity Inhibitors of Plasmodium Falciparum and Plasmodium Vivax N-Myristoyltransferases Directed by Ligand Efficiency Dependent Lipophilicity (Lelp).

Rackham, M.D.Brannigan, J.A.Rangachari, K.Meister, S.Wilkinson, A.J.Holder, A.A.Leatherbarrow, R.J.Tate, E.W.

(2014) J Med Chem 57: 2773

  • DOI: https://doi.org/10.1021/jm500066b
  • Primary Citation of Related Structures:  
    4CAE, 4CAF

  • PubMed Abstract: 

    N-Myristoyltransferase (NMT) is an essential eukaryotic enzyme and an attractive drug target in parasitic infections such as malaria. We have previously reported that 2-(3-(piperidin-4-yloxy)benzo[b]thiophen-2-yl)-5-((1,3,5-trimethyl-1H-pyrazol-4-yl)methyl)-1,3,4-oxadiazole (34c) is a high affinity inhibitor of both Plasmodium falciparum and P. vivax NMT and displays activity in vivo against a rodent malaria model. Here we describe the discovery of 34c through optimization of a previously described series. Development, guided by targeting a ligand efficiency dependent lipophilicity (LELP) score of less than 10, yielded a 100-fold increase in enzyme affinity and a 100-fold drop in lipophilicity with the addition of only two heavy atoms. 34c was found to be equipotent on chloroquine-sensitive and -resistant cell lines and on both blood and liver stage forms of the parasite. These data further validate NMT as an exciting drug target in malaria and support 34c as an attractive tool for further optimization.


  • Organizational Affiliation

    Department of Chemistry, Imperial College London , London SW7 2AZ, U.K.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GLYCYLPEPTIDE N-TETRADECANOYLTRANSFERASE
A, B, C
384Plasmodium vivaxMutation(s): 0 
EC: 2.3.1.97
UniProt
Find proteins for A5K1A2 (Plasmodium vivax (strain Salvador I))
Explore A5K1A2 
Go to UniProtKB:  A5K1A2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA5K1A2
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 7 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NHW
Query on NHW

Download Ideal Coordinates CCD File 
K [auth A],
R [auth B],
X [auth C]
2-oxopentadecyl-CoA
C36 H64 N7 O17 P3 S
JKWHUJMJVNMKEF-UOCZADIYSA-J
370
Query on 370

Download Ideal Coordinates CCD File 
D [auth A],
L [auth B],
S [auth C]
4-[(2-{5-[(3,5-dimethyl-1H-pyrazol-4-yl)methyl]-1,3,4-oxadiazol-2-yl}-1-benzothiophen-3-yl)oxy]piperidine
C21 H23 N5 O2 S
BSFSQCSQIOYTCL-UHFFFAOYSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
G [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
DMS
Query on DMS

Download Ideal Coordinates CCD File 
E [auth A],
F [auth A],
M [auth B],
N [auth B],
T [auth C]
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
J [auth A],
Q [auth B],
W [auth C]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG
Query on MG

Download Ideal Coordinates CCD File 
H [auth A],
O [auth B],
U [auth C]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
NH4
Query on NH4

Download Ideal Coordinates CCD File 
I [auth A],
P [auth B],
V [auth C]
AMMONIUM ION
H4 N
QGZKDVFQNNGYKY-UHFFFAOYSA-O
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.46α = 90
b = 121.1β = 90
c = 178.38γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-04-02
    Type: Initial release
  • Version 1.1: 2014-04-09
    Changes: Database references
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other