1B4B

STRUCTURE OF THE OLIGOMERIZATION DOMAIN OF THE ARGININE REPRESSOR FROM BACILLUS STEAROTHERMOPHILUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the arginine repressor from Bacillus stearothermophilus.

Ni, J.Sakanyan, V.Charlier, D.Glansdorff, N.Van Duyne, G.D.

(1999) Nat.Struct.Mol.Biol. 6: 427-432

  • DOI: 10.1038/8229
  • Primary Citation of Related Structures:  1B4A

  • PubMed Abstract: 
  • The arginine repressor (ArgR) is a hexameric DNA-binding protein that plays a multifunctional role in the bacterial cell. Here, we present the 2.5 A structure of apo-ArgR from Bacillus stearothermophilus and the 2.2 A structure of the hexameric ArgR ...

    The arginine repressor (ArgR) is a hexameric DNA-binding protein that plays a multifunctional role in the bacterial cell. Here, we present the 2.5 A structure of apo-ArgR from Bacillus stearothermophilus and the 2.2 A structure of the hexameric ArgR oligomerization domain with bound arginine. This first view of intact ArgR reveals an approximately 32-symmetric hexamer of identical subunits, with six DNA-binding domains surrounding a central oligomeric core. The difference in quaternary organization of subunits in the arginine-bound and apo forms provides a possible explanation for poor operator binding by apo-ArgR and for high affinity binding in the presence of arginine.


    Related Citations: 
    • The Crystal Structure of Arginine Repressor
      Ni, J.
      (1998) Thesis, University of Pennsylvania --: --


    Organizational Affiliation

    Department of Biochemistry & Biophysics and Johnson Research Foundation, University of Pennsylvania School of Medicine, Philadelphia 19104, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ARGININE REPRESSOR
A, B, C
71Geobacillus stearothermophilusGene Names: argR
Find proteins for O31408 (Geobacillus stearothermophilus)
Go to UniProtKB:  O31408
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ARG
Query on ARG

Download SDF File 
Download CCD File 
A, B
ARGININE
C6 H15 N4 O2
ODKSFYDXXFIFQN-BYPYZUCNSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.218 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 82.000α = 90.00
b = 82.000β = 90.00
c = 67.200γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
DENZOdata reduction
X-PLORrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model