3ICM

Trypanosoma cruzi farnesyl diphosphate synthase homodimer in complex with isopentenyl pyrophosphate, Mg2+ and 1-(2-Hydroxy-2,2-bis-phosphono-ethyl)-3-phenyl-pyridinium


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Binding of nitrogen-containing bisphosphonates (N-BPs) to the Trypanosoma cruzi farnesyl diphosphate synthase homodimer.

Huang, C.H.Gabelli, S.B.Oldfield, E.Amzel, L.M.

(2010) Proteins 78: 888-899

  • DOI: 10.1002/prot.22614
  • Primary Citation of Related Structures:  3IBA, 3ICK, 3ICN, 3ICZ, 3ID0

  • PubMed Abstract: 
  • Bisphosphonates (BPs) are a class of compounds that have been used extensively in the treatment of osteoporosis and malignancy-related hypercalcemia. Some of these compounds act through inhibition of farnesyl diphosphate synthase (FPPS), a key enzyme ...

    Bisphosphonates (BPs) are a class of compounds that have been used extensively in the treatment of osteoporosis and malignancy-related hypercalcemia. Some of these compounds act through inhibition of farnesyl diphosphate synthase (FPPS), a key enzyme in the synthesis of isoprenoids. Recently, nitrogen-containing bisphosphonates (N-BPs) used in bone resorption therapy have been shown to be active against Trypanosoma cruzi, the parasite that causes American trypanosomiasis (Chagas disease), suggesting that they may be used as anti-trypanosomal agents. The crystal structures of TcFPPS in complex with substrate (isopentenyl diphosphate, IPP) and five N-BP inhibitors show that the C-1 hydroxyl and the nitrogen-containing groups of the inhibitors alter the binding of IPP and the conformation of two TcFPPS residues, Tyr94 and Gln167. Isothermal titration calorimetry experiments suggest that binding of the first N-BPs to the homodimeric TcFPPS changes the binding properties of the second site. This mechanism of binding of N-BPs to TcFPPS is different to that reported for the binding of the same compounds to human FPPS. Proteins 2010. (c) 2009 Wiley-Liss, Inc.


    Organizational Affiliation

    Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Farnesyl pyrophosphate synthase
A
362Trypanosoma cruziN/A
Find proteins for Q95WL3 (Trypanosoma cruzi)
Go to UniProtKB:  Q95WL3
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IPE
Query on IPE

Download SDF File 
Download CCD File 
A
3-METHYLBUT-3-ENYL TRIHYDROGEN DIPHOSPHATE
ISOPENTENYL PYROPHOSPHATE
C5 H12 O7 P2
NUHSROFQTUXZQQ-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

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Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
P2H
Query on P2H

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Download CCD File 
A
1-(2-hydroxy-2,2-diphosphonoethyl)-3-phenylpyridinium
C13 H16 N O7 P2
ZYEONEYSNIUGRA-UHFFFAOYSA-O
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.186 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 58.335α = 90.00
b = 58.335β = 90.00
c = 394.229γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data scaling
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-02-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2013-04-17
    Type: Non-polymer description
  • Version 1.3: 2017-11-01
    Type: Refinement description