3E6C

CprK OCPA DNA Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular basis of halorespiration control by CprK, a CRP-FNR type transcriptional regulator

Levy, C.Pike, K.Heyes, D.J.Joyce, M.G.Gabor, K.Smidt, H.van der Oost, J.Leys, D.

(2008) Mol Microbiol 70: 151-167

  • DOI: 10.1111/j.1365-2958.2008.06399.x
  • Primary Citation of Related Structures:  
    3E6B, 3E6C, 3E5U, 3E5X, 3E5Q, 3E6D

  • PubMed Abstract: 
  • Certain bacteria are able to conserve energy via the reductive dehalogenation of halo-organic compounds in a respiration-type metabolism. The transcriptional regulator CprK from Desulfitobacterium spp. induces expression of halorespiratory genes upon ...

    Certain bacteria are able to conserve energy via the reductive dehalogenation of halo-organic compounds in a respiration-type metabolism. The transcriptional regulator CprK from Desulfitobacterium spp. induces expression of halorespiratory genes upon binding of o-chlorophenol ligands and is reversibly inactivated by oxygen through disulphide bond formation. We report crystal structures of D. hafniense CprK in the ligand-free (both oxidation states), ligand-bound (reduced) and DNA-bound states, making it the first member of the widespread CRP-FNR superfamily for which a complete structural description of both redox-dependent and allosteric molecular rearrangements is available. In conjunction with kinetic and thermodynamic ligand binding studies, we provide a model for the allosteric mechanisms underpinning transcriptional control. Amino acids that play a key role in this mechanism are not conserved in functionally distinct CRP-FNR members. This suggests that, despite significant structural homology, distinct allosteric mechanisms are used, enabling this protein family to control a very wide range of processes.


    Organizational Affiliation

    Manchester Interdisciplinary Biocentre, The University of Manchester, Manchester M1 7DN, UK.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cyclic nucleotide-binding proteinC250Desulfitobacterium hafniense DCB-2Mutation(s): 1 
Gene Names: Dhaf_0678Dhaf_0733
Find proteins for B8FW11 (Desulfitobacterium hafniense (strain DCB-2 / DSM 10664))
Explore B8FW11 
Go to UniProtKB:  B8FW11
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(P*DGP*DCP*DAP*DTP*DTP*DAP*DAP*DCP*DAP*DTP*DGP*DCP*DC)-3')B13N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 3
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(P*DGP*DGP*DCP*DAP*DTP*DGP*DTP*DTP*DAP*DAP*DTP*DGP*DC)-3')A13N/A
      Small Molecules
      Ligands 1 Unique
      IDChainsName / Formula / InChI Key2D Diagram3D Interactions
      3C4
      Query on 3C4

      Download CCD File 
      C
      (3-CHLORO-4-HYDROXYPHENYL)ACETIC ACID
      C8 H7 Cl O3
      IYTUKSIOQKTZEG-UHFFFAOYSA-N
       Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 1.80 Å
      • R-Value Free: 0.250 
      • R-Value Work: 0.217 
      • R-Value Observed: 0.219 
      • Space Group: P 62 2 2
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 100.6α = 90
      b = 100.6β = 90
      c = 149.66γ = 120
      Software Package:
      Software NamePurpose
      REFMACrefinement

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      • Deposited Date: 2008-08-15 
      • Released Date: 2008-09-30 
      • Deposition Author(s): Levy, C.

      Revision History 

      • Version 1.0: 2008-09-30
        Type: Initial release
      • Version 1.1: 2011-07-13
        Changes: Advisory, Version format compliance