1GSF

GLUTATHIONE TRANSFERASE A1-1 COMPLEXED WITH ETHACRYNIC ACID

• PDB DOI:  https://doi.org/10.2210/pdb1GSF/pdb

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


• Deposited: 1995-06-09 Released: 1995-09-15 
• Deposition Author(s): L'Hermite, G., Sinning, I., Cameron, A.D., Jones, T.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.261 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 

Literature

Structural analysis of human alpha-class glutathione transferase A1-1 in the apo-form and in complexes with ethacrynic acid and its glutathione conjugate.

Cameron, A.D., Sinning, I., L'Hermite, G., Olin, B., Board, P.G., Mannervik, B., Jones, T.A.

(1995) Structure 3: 717-727

• PubMed: 8591048 
• DOI: https://doi.org/10.1016/s0969-2126(01)00206-4
• Primary Citation of Related Structures:  
  1GSD, 1GSE, 1GSF


• PubMed Abstract: 
  

Glutathione transferases (GSTs) constitute a family of isoenzymes that catalyze the conjugation of the tripeptide glutathione with a wide variety of hydrophobic compounds bearing an electrophilic functional group. Recently, a number of X-ray structures have been reported which have defined both the glutathione- and the substrate-binding sites in these enzymes. The structure of the glutathione-free enzyme from a mammalian source has not, however, been reported previously.

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Related Citations: 

• Structure Determination and Refinement of Human Alpha Class Glutathione Transferase A1-1, and a Comparison with the Mu and Pi Class Enzyme
  Sinning, I., Kleywegt, G.J., Cowan, S.W., Reinemer, P., Dirr, H.W., Huber, R., Gilliland, G.L., Armstrong, R.N., Ji, X., Board, P.G., Olin, B., Mannervik, B., Jones, T.A.
  (1993) J Mol Biol 232: 192

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Organizational Affiliation: 

Department of Molecular Biology, Uppsala University, Sweden.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 103.37 kDa 
• Atom Count: 7,454 
• Modelled Residue Count: 884 
• Deposited Residue Count: 884 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLUTATHIONE TRANSFERASE A1-1	A, B, C, D	221	Homo sapiens	Mutation(s): 0  Gene Names: GSTA1 EC: 2.5.1.18 (PDB Primary Data), 1.11.1 (UniProt), 5.3.3 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P08263 (Homo sapiens) Explore P08263  Go to UniProtKB:  P08263
PHAROS:  P08263

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EAA	E [auth A], F [auth B], G [auth C], H [auth D]	ETHACRYNIC ACID C13 H12 Cl2 O4 AVOLMBLBETYQHX-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
EAA	PDBBind:  1GSF	IC50: 1.00e+4 (nM) from 1 assay(s)
	BindingDB:  1GSF	IC50: 5000 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.261 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 101.8	α = 90
b = 95.6	β = 92.2
c = 105.3	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
R-AXIS	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-09-15 
Deposition Author(s): L'Hermite, G., Sinning, I., Cameron, A.D., Jones, T.A.

Revision History  

• Version 1.0: 1995-09-15
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance