Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 47.83 kDa 
• Atom Count: 3521 
• Modelled Residue Count: 416 
• Deposited Residue Count: 418 
• Unique protein chains: 1

10GS

HUMAN GLUTATHIONE S-TRANSFERASE P1-1, COMPLEX WITH TER117

• PDB DOI: 10.2210/pdb10GS/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1997-08-14 Released: 1998-09-16 
• Deposition Author(s): Oakley, A., Parker, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.214 
• R-Value Work: 0.176 
• R-Value Observed: 0.176 

Literature

The structures of human glutathione transferase P1-1 in complex with glutathione and various inhibitors at high resolution.

Oakley, A.J., Bello, M.L., Battistoni, A., Ricci, G., Rossjohn, J., Villar, H.O., Parker, M.W.

(1997) J Mol Biol 274: 84-100

• PubMed: 9398518 
• DOI: 10.1006/jmbi.1997.1364
• Primary Citation of Related Structures:  
  10GS, 5GSS, 6GSS, 7GSS, 8GSS, 9GSS


• PubMed Abstract: 
  

The human pi-class glutathione S-transferase (hGST P1-1) is a target for structure-based inhibitor design with the aim of developing drugs that could be used as adjuvants in chemotherapeutic treatment. Here we present seven crystal structures of the enzyme in complex with substrate (glutathione) and two inhibitors (S-hexyl glutathione and gamma-glutamyl- (S-benzyl)cysteinyl-D-phenylglycine). The binding of the modified glutathione inhibitor, gamma-glutamyl-(S-benzyl)cysteinyl-D-phenylglycine, has been characterized with the phenyl group stacking against the benzyl moiety of the inhibitor and making interactions with the active-site residues Phe8 and Trp38. The structure provides an explanation as to why this compound inhibits the pi-class GST much better than the other GST classes. The structure of the enzyme in complex with glutathione has been determined to high resolution (1.9 to 2.2 A) in three different crystal forms and at two different temperatures (100 and 288 K). In one crystal form, the direct hydrogen-bonding interaction between the hydroxyl group of Tyr7, a residue involved in catalysis, and the thiol group of the substrate, glutathione, is broken and replaced by a water molecule that mediates the interaction. The hydrogen-bonding partner of the hydroxyl group of Tyr108, another residue implicated in the catalysis, is space-group dependent. A high-resolution (2.0 A) structure of the enzyme in complex with S-hexyl glutathione in a new crystal form is presented. The enzyme-inhibitor complexes show that the binding of ligand into the electrophilic binding site does not lead to any conformational changes of the protein.

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Related Citations: 

• Three-Dimensional Structure of Class Pi Glutathione S-Transferase from Human Placenta in Complex with S-Hexylglutathione at 2.8 A Resolution
  Reinemer, P., Dirr, H.W., Ladenstein, R., Huber, R., Lo Bello, M., Federici, G., Parker, M.W.
  (1992) J Mol Biol 227: 214

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Organizational Affiliation: 

The Ian Potter Foundation Protein Crystallography Laboratory, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLUTATHIONE S-TRANSFERASE P1-1	A, B	209	Homo sapiens	Mutation(s): 0  Gene Names: GTP_HUMAN, GSTP1, FAEES3, GST3 EC: 2.5.1.18
UniProt & NIH Common Fund Data Resources
Find proteins for P09211 (Homo sapiens) Explore P09211  Go to UniProtKB:  P09211
PHAROS:  P09211 GTEx:  ENSG00000084207

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
VWW	C [auth A], E [auth B]	L-gamma-glutamyl-S-benzyl-N-[(S)-carboxy(phenyl)methyl]-L-cysteinamide C23 H27 N3 O6 S ZPSKWMFLCHMEOY-CMKODMSKSA-N
MES	D [auth A], F [auth B]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
VWW	Binding MOAD:  10GS	Ki: 400 (nM) from 1 assay(s)
	PDBBind:  10GS	Ki: 400 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.214 
• R-Value Work: 0.176 
• R-Value Observed: 0.176 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 79.723	α = 90
b = 90.46	β = 98.19
c = 69.404	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-08-14 
• Released Date: 1998-09-16 
Deposition Author(s): Oakley, A., Parker, M.

Revision History  

• Version 1.0: 1998-09-16
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
• Version 1.3: 2013-02-13
  Changes: Structure summary