2P5M

C-terminal domain hexamer of AhrC bound with L-arginine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the C-terminal effector-binding domain of AhrC bound to its corepressor L-arginine.

Garnett, J.A.Baumberg, S.Stockley, P.G.Phillips, S.E.

(2007) Acta Crystallogr.,Sect.F 63: 918-921

  • DOI: 10.1107/S1744309107049391

  • PubMed Abstract: 
  • The arginine repressor/activator protein (AhrC) from Bacillus subtilis belongs to a large family of multifunctional transcription factors that are involved in the regulation of bacterial arginine metabolism. AhrC interacts with operator sites in the ...

    The arginine repressor/activator protein (AhrC) from Bacillus subtilis belongs to a large family of multifunctional transcription factors that are involved in the regulation of bacterial arginine metabolism. AhrC interacts with operator sites in the promoters of arginine biosynthetic and catabolic operons, acting as a transcriptional repressor at biosynthetic sites and an activator of transcription at catabolic sites. AhrC is a hexamer of identical subunits, each having two domains. The C-terminal domains form the core of the protein and are involved in oligomerization and L-arginine binding. The N-terminal domains lie on the outside of the compact core and play a role in binding to 18 bp DNA operators called ARG boxes. The C-terminal domain of AhrC has been expressed, purified and characterized, and also crystallized as a hexamer with the bound corepressor L-arginine. Here, the crystal structure refined to 1.95 A is presented.


    Organizational Affiliation

    Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Arginine repressor
A, B, C
83Bacillus subtilis (strain 168)Mutation(s): 1 
Gene Names: argR (ahrC)
Find proteins for P17893 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P17893
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ARG
Query on ARG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.182 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 117.014α = 90.00
b = 117.014β = 90.00
c = 68.927γ = 120.00
Software Package:
Software NamePurpose
AMoREphasing
ADSCdata collection
PDB_EXTRACTdata extraction
SCALAdata scaling
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-10-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance