3E32

Protein farnesyltransferase complexed with FPP and ethylenediamine scaffold inhibitor 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structural basis for binding and selectivity of antimalarial and anticancer ethylenediamine inhibitors to protein farnesyltransferase.

Hast, M.A.Fletcher, S.Cummings, C.G.Pusateri, E.E.Blaskovich, M.A.Rivas, K.Gelb, M.H.Van Voorhis, W.C.Sebti, S.M.Hamilton, A.D.Beese, L.S.

(2009) Chem Biol 16: 181-192

  • DOI: https://doi.org/10.1016/j.chembiol.2009.01.014
  • Primary Citation of Related Structures:  
    3E30, 3E32, 3E33, 3E34, 3E37

  • PubMed Abstract: 

    Protein farnesyltransferase (FTase) catalyzes an essential posttranslational lipid modification of more than 60 proteins involved in intracellular signal transduction networks. FTase inhibitors have emerged as a significant target for development of anticancer therapeutics and, more recently, for the treatment of parasitic diseases caused by protozoan pathogens, including malaria (Plasmodium falciparum). We present the X-ray crystallographic structures of complexes of mammalian FTase with five inhibitors based on an ethylenediamine scaffold, two of which exhibit over 1000-fold selective inhibition of P. falciparum FTase. These structures reveal the dominant determinants in both the inhibitor and enzyme that control binding and selectivity. Comparison to a homology model constructed for the P. falciparum FTase suggests opportunities for further improving selectivity of a new generation of antimalarial inhibitors.


  • Organizational Affiliation

    Department of Biochemistry, Duke University Medical Center, Box 3711, Durham, NC 27710, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein farnesyltransferase/geranylgeranyltransferase type-1 subunit alpha377Rattus norvegicusMutation(s): 0 
Gene Names: Fnta
EC: 2.5.1.58 (PDB Primary Data), 2.5.1.59 (PDB Primary Data)
UniProt
Find proteins for Q04631 (Rattus norvegicus)
Explore Q04631 
Go to UniProtKB:  Q04631
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ04631
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Protein farnesyltransferase subunit beta437Rattus norvegicusMutation(s): 0 
Gene Names: Fntb
EC: 2.5.1.58
UniProt
Find proteins for Q02293 (Rattus norvegicus)
Explore Q02293 
Go to UniProtKB:  Q02293
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ02293
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ED2
Query on ED2

Download Ideal Coordinates CCD File 
E [auth B]N-benzyl-N-(2-{(4-cyanophenyl)[(1-methyl-1H-imidazol-5-yl)methyl]amino}ethyl)-1-methyl-1H-imidazole-4-sulfonamide
C25 H27 N7 O2 S
IDHGAQOVWWBGFK-UHFFFAOYSA-N
FPP
Query on FPP

Download Ideal Coordinates CCD File 
D [auth B]FARNESYL DIPHOSPHATE
C15 H28 O7 P2
VWFJDQUYCIWHTN-YFVJMOTDSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
FPP BindingDB:  3E32 Kd: 2 (nM) from 1 assay(s)
ED2 BindingDB:  3E32 IC50: min: 25, max: 1.00e+4 (nM) from 5 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 173.383α = 90
b = 173.383β = 90
c = 70.039γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2024-02-21
    Changes: Data collection, Database references, Derived calculations