2X50

Crystal structure of Trypanothione reductase from Leishmania infantum in complex with NADPH and silver


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Inhibitory Effect of Silver Nanoparticles on Trypanothione Reductase Activity and Leishmania Infantum Proliferation

Baiocco, P.Colotti, G.Ilari, A.

(2011) Acs Med.Chem.Lett. 2: 230

  • DOI: 10.1021/ml1002629

  • PubMed Abstract: 
  • In Leishmania the glutathione/glutathione reductase eukaryotic redox sys-tem is replaced by the unique trypanothione/trypanothione reductase (TR) system. In vitro, silver is a more effective TR inhibitor than antimony, the first line drug against lei ...

    In Leishmania the glutathione/glutathione reductase eukaryotic redox sys-tem is replaced by the unique trypanothione/trypanothione reductase (TR) system. In vitro, silver is a more effective TR inhibitor than antimony, the first line drug against leishmaniasis in most endemic countries, and its mechanism of inhibition is similar to that of Sb(III). In particular, silver binds with high affinity to the catalytic triad Cys52, Cys57, and His461', thereby inhibiting TR. Here, Ag(0) activity was tested on the promastigote and amastigote stages of Leishmania infantum using a drug-delivery system consisting in Ag(0) nanoparticles encapsulated by ferritin molecules (PfFt-AgNPs). These were able to induce an antiproliferative effect on the parasites at metal concentrations lower than those used with antimony.


    Organizational Affiliation

    Institute of Molecular Biology and Pathology CNR, and Department of Biochemical Sciences, Sapienza University of Roma , P.le A. Moro 5, 00185 Rome, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRYPANOTHIONE REDUCTASE
A, B
510Leishmania infantumGene Names: TRYR
EC: 1.8.1.12
Find proteins for A4HSF7 (Leishmania infantum)
Go to UniProtKB:  A4HSF7
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

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Download CCD File 
A, B
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
AG
Query on AG

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Download CCD File 
A, B
SILVER ION
Ag
FOIXSVOLVBLSDH-UHFFFAOYSA-N
 Ligand Interaction
NDP
Query on NDP

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Download CCD File 
A, B
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.229 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 102.323α = 90.00
b = 102.323β = 90.00
c = 193.561γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
Mphasing
REFMACrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-01-12
    Type: Initial release
  • Version 1.1: 2011-11-16
    Type: Database references, Derived calculations, Version format compliance
  • Version 1.2: 2014-06-18
    Type: Database references