2Y3G

Se-Met form of Cupriavidus metallidurans CH34 CnrXs


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Basis for Metal Sensing by Cnrx.

Trepreau, J.Girard, E.Maillard, A.P.De Rosny, E.Petit-Haertlein, I.Kahn, R.Coves, J.

(2011) J Mol Biol 408: 766

  • DOI: 10.1016/j.jmb.2011.03.014

  • PubMed Abstract: 
  • CnrX is the metal sensor and signal modulator of the three-protein transmembrane signal transduction complex CnrYXH of Cupriavidus metallidurans CH34 that is involved in the setup of cobalt and nickel resistance. We have determined the atomic structure of the soluble domain of CnrX in its Ni-bound, Co-bound, or Zn-bound form ...

    CnrX is the metal sensor and signal modulator of the three-protein transmembrane signal transduction complex CnrYXH of Cupriavidus metallidurans CH34 that is involved in the setup of cobalt and nickel resistance. We have determined the atomic structure of the soluble domain of CnrX in its Ni-bound, Co-bound, or Zn-bound form. Ni and Co ions elicit a biological response, while the Zn-bound form is inactive. The structures presented here reveal the topology of intraprotomer and interprotomer interactions and the ability of metal-binding sites to fine-tune the packing of CnrX dimer as a function of the bound metal. These data suggest an allosteric mechanism to explain how the complex is switched on and how the signal is modulated by Ni or Co binding. These results provide clues to propose a model for signal propagation through the membrane in the complex.


    Related Citations: 
    • X-Ray Structure of the Metal-Sensor Cnrx in Both the Apo-and Copper-Bound Forms.
      Pompidor, G., Maillard, A.P., Girard, E., Gambarelli, S., Kahn, R., Coves, J.
      (2008) FEBS Lett 582: 3954

    Organizational Affiliation

    Institut de Biologie Structurale Jean-Pierre Ebel, UMR 5075, CNRS-CEA-UJF Grenoble 1, 41, rue Jules Horowitz, 38027 Grenoble Cedex, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NICKEL AND COBALT RESISTANCE PROTEIN CNRRA, B, C, D118Cupriavidus metallidurans CH34Mutation(s): 0 
Gene Names: cnrRcnrXRmet_6206RMe0087
UniProt
Find proteins for P37975 (Cupriavidus metallidurans (strain ATCC 43123 / DSM 2839 / NBRC 102507 / CH34))
Explore P37975 
Go to UniProtKB:  P37975
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, DL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.190 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 31.896α = 90
b = 81.809β = 90.47
c = 93.336γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
SHARPphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-03-30
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance