2HGS

HUMAN GLUTATHIONE SYNTHETASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.218 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Molecular basis of glutathione synthetase deficiency and a rare gene permutation event.

Polekhina, G.Board, P.G.Gali, R.R.Rossjohn, J.Parker, M.W.

(1999) EMBO J 18: 3204-3213

  • DOI: 10.1093/emboj/18.12.3204
  • Primary Citation of Related Structures:  
    2HGS

  • PubMed Abstract: 
  • Glutathione synthetase (GS) catalyses the production of glutathione from gamma-glutamylcysteine and glycine in an ATP-dependent manner. Malfunctioning of GS results in disorders including metabolic acidosis, 5-oxoprolinuria, neurological dysfunction, haemolytic anaemia and in some cases is probably lethal ...

    Glutathione synthetase (GS) catalyses the production of glutathione from gamma-glutamylcysteine and glycine in an ATP-dependent manner. Malfunctioning of GS results in disorders including metabolic acidosis, 5-oxoprolinuria, neurological dysfunction, haemolytic anaemia and in some cases is probably lethal. Here we report the crystal structure of human GS (hGS) at 2.1 A resolution in complex with ADP, two magnesium ions, a sulfate ion and glutathione. The structure indicates that hGS belongs to the recently identified ATP-grasp superfamily, although it displays no detectable sequence identity with other family members including its bacterial counterpart, Escherichia coli GS. The difficulty in identifying hGS as a member of the family is due in part to a rare gene permutation which has resulted in a circular shift of the conserved secondary structure elements in hGS with respect to the other known ATP-grasp proteins. Nevertheless, it appears likely that the enzyme shares the same general catalytic mechanism as other ligases. The possibility of cyclic permutations provides an insight into the evolution of this family and will probably lead to the identification of new members. Mutations that lead to GS deficiency have been mapped onto the structure, providing a molecular basis for understanding their effects.


    Related Citations: 
    • Sequencing and Expression of a Cdna for Human Glutathione Synthetase
      Gali, R.R., Board, P.G.
      (1995) Biochem J 310: 353

    Organizational Affiliation

    The Ian Potter Foundation Protein Crystallography Laboratory, St Vincent's Institute of Medical Research, 41 Victoria Parade, Fitzroy, Victoria 3065, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (GLUTATHIONE SYNTHETASE)A474Homo sapiensMutation(s): 0 
Gene Names: GSS
EC: 6.3.2.3
UniProt & NIH Common Fund Data Resources
Find proteins for P48637 (Homo sapiens)
Explore P48637 
Go to UniProtKB:  P48637
PHAROS:  P48637
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP48637
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download Ideal Coordinates CCD File 
F [auth A]ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
GSH
Query on GSH

Download Ideal Coordinates CCD File 
G [auth A]GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.218 
  • Space Group: P 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.26α = 90
b = 84.26β = 90
c = 197.62γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-06-22
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance