4GCV

Structure of a Putative transcription factor (PA1374)from Pseudomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The X-ray crystal structure of PA1374 from Pseudomonas aeruginosa, a putative oxidative-stress sensing transcriptional regulator.

Kim, H.Choe, J.

(2013) Biochem.Biophys.Res.Commun. 431: 376-381

  • DOI: 10.1016/j.bbrc.2013.01.044

  • PubMed Abstract: 
  • Members of the multiple antibiotic resistance regulator (MarR) family regulate the expression of genes related to antibiotic resistance, oxidative stress, and virulence in bacteria and Archaea. Here, we determined the structure of PA1374 from Pseudom ...

    Members of the multiple antibiotic resistance regulator (MarR) family regulate the expression of genes related to antibiotic resistance, oxidative stress, and virulence in bacteria and Archaea. Here, we determined the structure of PA1374 from Pseudomonas aeruginosa at 2.3Å resolution. PA1374 belonged to the MarR family and its structure revealed a tightly bound dimer with each subunit containing a winged helix-turn-helix (wHTH) DNA-binding motif. Conserved arginine residues, Arg55, Arg74, and Arg77, were located in the wHTH region, which might be important to DNA binding. Furthermore, each monomer contained a pocket made of conserved hydrophobic residues. A highly conserved Cys11 located at one end of this pocket may undergo oxidation by organic hydroperoxide molecules, as shown in other MarR family proteins acting as redox-sensing regulators. These results provide insights about the role of PA1374 as a putative oxidative-stress sensing transcriptional regulator.


    Organizational Affiliation

    Department of Life Science, University of Seoul, Seoul 130-743, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative transcription protein
A, B, C, D, E, F, G, H, I, J, K, L
168Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)Mutation(s): 2 
Find proteins for Q9I3X0 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Go to UniProtKB:  Q9I3X0
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
B, D, F, K
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
NA
Query on NA

Download SDF File 
Download CCD File 
A, B, D, E, F, G, H, I, J, K, L
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B, C, D, G, H, I, J, K, L
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F, G, H, I, J, K, L
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.214 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 128.897α = 90.00
b = 74.448β = 90.03
c = 230.492γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
REFMACrefinement
SOLVEphasing
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-07-31 
  • Released Date: 2013-07-24 
  • Deposition Author(s): Choe, J., Kim, H.

Revision History 

  • Version 1.0: 2013-07-24
    Type: Initial release
  • Version 1.1: 2013-07-31
    Type: Data collection