2OMA

Crystallographic analysis of a chemically modified triosephosphate isomerase from Trypanosoma cruzi with dithiobenzylamine (DTBA)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Perturbation of the Dimer Interface of Triosephosphate Isomerase and its Effect on Trypanosoma cruzi.

Olivares-Illana, V.Rodriguez-Romero, A.Becker, I.Berzunza, M.Garcia, J.Perez-Montfort, R.Cabrera, N.Lopez-Calahorra, F.de Gomez-Puyou, M.T.Gomez-Puyou, A.

(2007) PLoS Negl Trop Dis 1: e1-e1

  • DOI: 10.1371/journal.pntd.0000001

  • PubMed Abstract: 
  • Chagas disease affects around 18 million people in the American continent. Unfortunately, there is no satisfactory treatment for the disease. The drugs currently used are not specific and exert serious toxic effects. Thus, there is an urgent need for ...

    Chagas disease affects around 18 million people in the American continent. Unfortunately, there is no satisfactory treatment for the disease. The drugs currently used are not specific and exert serious toxic effects. Thus, there is an urgent need for drugs that are effective. Looking for molecules to eliminate the parasite, we have targeted a central enzyme of the glycolytic pathway: triosephosphate isomerase (TIM). The homodimeric enzyme is catalytically active only as a dimer. Because there are significant differences in the interface of the enzymes from the parasite and humans, we searched for small molecules that specifically disrupt contact between the two subunits of the enzyme from Trypanosoma cruzi but not those of TIM from Homo sapiens (HTIM), and tested if they kill the parasite.


    Related Citations: 
    • Inactivation of triosephosphate isomerase from trypanosoma cruzi by an agent AN AGENT THAT PERTURBS ITS DIMER INTERFACE.
      Tellez-Valencia, A.,Olivares-Illana, V.,Hernandez-Santoyo, A.,Perez-Montfort, R.,Costas, M.,Rodriguez-Romero, A.,Lopez-Calahorra, F.,Tuena de Gomez-Puyou, M.,Gomez-Puyou, A.
      (2004) J.Mol.Biol. 341: 1355


    Organizational Affiliation

    Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Triosephosphate isomerase
A, B
250Trypanosoma cruziMutation(s): 0 
EC: 5.3.1.1
Find proteins for P52270 (Trypanosoma cruzi)
Go to UniProtKB:  P52270
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
PGE
Query on PGE

Download SDF File 
Download CCD File 
B
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download SDF File 
Download CCD File 
A, B
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CS1
Query on CS1
A, B
L-PEPTIDE LINKINGC9 H12 N2 O2 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 43.206α = 90.00
b = 75.337β = 90.00
c = 146.427γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
CrystalCleardata reduction
d*TREKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-11-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Derived calculations, Version format compliance