1OE8

28kDa glutathione S-transferase from Schistosoma haematobium (glutathione saturated)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of the 28 kDa Glutathione S-Transferase from Schistosoma Haematobium

Johnson, K.A.Angelucci, F.Bellelli, A.Herve, M.Fontaine, J.Tsernoglou, D.Capron, A.Trottein, F.Brunori, M.

(2003) Biochemistry 42: 10084

  • DOI: 10.1021/bi034449r
  • Primary Citation of Related Structures:  1OE7

  • PubMed Abstract: 
  • Schistomiasis is a debilitating parasitic disease which affects 200 million people, causing life-threatening complications in 10% of the patients. This paper reports the crystal structure of the Schistosoma haematobium 28 kDa glutathione S-transferas ...

    Schistomiasis is a debilitating parasitic disease which affects 200 million people, causing life-threatening complications in 10% of the patients. This paper reports the crystal structure of the Schistosoma haematobium 28 kDa glutathione S-transferase, a multifunctional enzyme involved in host-parasite interactions and presently considered as a promising vaccine candidate against schistosomiasis. The structures of the GSH-free enzyme, as well as the partially (approximately 40%) and almost fully (approximately 80%) GSH-saturated enzyme, exhibit a unique feature, absent in previous GST structures, concerning the crucial and invariant Tyr10 side chain which occupies two alternative positions. The canonical conformer, which allows an H-bond to be formed between the side chain hydroxyl group and the activated thiolate of GSH, is somewhat less than 50% occupied. The new conformer, with the phenoxyl ring on the opposite side of the mobile loop connecting strand 1 and helix 1, is stabilized by a polar interaction with the guanidinium group of the conserved Arg21 side chain. The presence of two conformers of Tyr10 may provide a clue about clarifying the multiple catalytic functions of Sh28GST and might prove to be relevant for the design of specific antischistosomal drugs. The K(d) for GSH binding was determined by equilibrium fluorescence titrations to be approximately 3 microM and by stopped-flow rapid mixing experiments to be approximately 9 microM. The relatively tight binding of GSH by Sh28GST explains the residually bound GSH in the crystal and supports a possible role of GSH as a tightly bound cofactor involved in the catalytic mechanism for prostaglandin D(2) synthase activity.


    Related Citations: 
    • Crystallization and Preliminary Diffraction Studies of a Protective Cloned 28 kDa Glutathione S-Transferase from Schistosoma Mansoni
      Trottein, F.,Vaney, M.C.,Bachet, B.,Pierce, R.J.,Colloc'H, N.,Lecocq, J.P.,Capron, A.,Momon, J.P.
      (1992) J.Mol.Biol. 224: 515
    • Role of the Parasite-Derived Prostaglandin D2 in the Inhibition of Epidermal Langerhans Cell Migration During Schistosomiasis Infections
      Angeli, V.,Faveeuw, C.,Roye, O.,Fontaine, J.,Teissier, E.,Capron, A.,Wolowczuk, L.,Capron, M.,Trottein, F.
      (2001) J.Exp.Med. 193: 1135


    Organizational Affiliation

    Department of Biochemical Sciences and Istituto Pasteur-Fondazione Cenci Bolognetti, University of Rome La Sapienza, Rome, Italy,




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUTATHIONE S-TRANSFERASE
A, B
211Schistosoma haematobiumEC: 2.5.1.18
Find proteins for P30114 (Schistosoma haematobium)
Go to UniProtKB:  P30114
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GSH
Query on GSH

Download SDF File 
Download CCD File 
A, B
GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
GSHKd: 9000 nM BINDINGMOAD
GSHKd: 3000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.229 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 53.142α = 90.00
b = 77.705β = 93.40
c = 53.195γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
AMoREphasing
REFMACrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-25
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance