6DU7

Glutathione reductase from Streptococcus pneumoniae


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structure and activity of the glutathione reductase from Streptococcus pneumoniae.

Sikanyika, M.Aragao, D.McDevitt, C.A.Maher, M.J.

(2019) Acta Crystallogr F Struct Biol Commun 75: 54-61

  • DOI: 10.1107/S2053230X18016527

  • PubMed Abstract: 
  • The glutathione reductase (GR) from Streptococcus pneumoniae is a flavoenzyme that catalyzes the reduction of oxidized glutathione (GSSG) to its reduced form (GSH) in the cytoplasm of this bacterium. The maintenance of an intracellular pool of GSH is ...

    The glutathione reductase (GR) from Streptococcus pneumoniae is a flavoenzyme that catalyzes the reduction of oxidized glutathione (GSSG) to its reduced form (GSH) in the cytoplasm of this bacterium. The maintenance of an intracellular pool of GSH is critical for the detoxification of reactive oxygen and nitrogen species and for intracellular metal tolerance to ions such as zinc. Here, S. pneumoniae GR (SpGR) was overexpressed and purified and its crystal structure determined at 2.56 Å resolution. SpGR shows overall structural similarity to other characterized GRs, with a dimeric structure that includes an antiparallel β-sheet at the dimer interface. This observation, in conjunction with comparisons with the interface structures of other GR enzymes, allows the classification of these enzymes into three classes. Analyses of the kinetic properties of SpGR revealed a significantly higher value for K m(GSSG) (231.2 ± 24.7 µM) in comparison to other characterized GR enzymes.


    Organizational Affiliation

    Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne 3086, Australia.,Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria 3000, Australia.,Australian Synchrotron, Australian Nuclear Science and Technology Organisation, 800 Blackburn Road, Clayton, Victoria 3168, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glutathione reductase
A, B, C, D, E, F, G, H
448Streptococcus pneumoniaeMutation(s): 0 
Gene Names: gor
EC: 1.8.1.7
Find proteins for A0A0U0ARX4 (Streptococcus pneumoniae)
Go to UniProtKB:  A0A0U0ARX4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SCN
Query on SCN

Download SDF File 
Download CCD File 
B, E
THIOCYANATE ION
C N S
ZMZDMBWJUHKJPS-UHFFFAOYSA-M
 Ligand Interaction
FAD
Query on FAD

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.180 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 96.748α = 90.00
b = 172.671β = 91.05
c = 135.434γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (Australia)AustraliaGNT1080784

Revision History 

  • Version 1.0: 2019-01-16
    Type: Initial release
  • Version 1.1: 2019-04-17
    Type: Author supporting evidence, Data collection