7KCI

DETERMINANTS OF REPRESSOR/OPERATOR RECOGNITION FROM THE STRUCTURE OF THE TRP OPERATOR BINDING SITE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Observed: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Determinants of repressor/operator recognition from the structure of the trp operator binding site.

Shakked, Z.Guzikevich-Guerstein, G.Frolow, F.Rabinovich, D.Joachimiak, A.Sigler, P.B.

(1994) Nature 368: 469-473

  • DOI: 10.1038/368469a0
  • Primary Citation of Related Structures:  
    7KCI

  • PubMed Abstract: 
  • On the basis of the crystal structure of the trp repressor/operator complex, it has been proposed that the specificity of the interaction can be explained not only by direct hydrogen bonding and non-polar contacts between the protein and the bases of ...

    On the basis of the crystal structure of the trp repressor/operator complex, it has been proposed that the specificity of the interaction can be explained not only by direct hydrogen bonding and non-polar contacts between the protein and the bases of its target DNA, but also by indirect structural effects and water-mediated interactions. To understand the contribution of DNA structure and hydration in this context, the structure of the free DNA must be compared with its structure when complexed with the protein. Here we present the high-resolution crystal structure of the trp operator region that is most important in the recognition process. By comparing the free and bound states of the DNA regulatory sequence, we show that the structure and hydration of the DNA target are important elements in its recognition by the repressor protein.


    Organizational Affiliation

    Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel.



Macromolecules
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    Self-complementary deoxyoligonucleotide decamer d(CCACTAGTGG)A, B10synthetic construct
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 1.95 Å
    • R-Value Observed: 0.170 
    • Space Group: P 32 2 1
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 32.9α = 90
    b = 32.9β = 90
    c = 95.1γ = 120
    Software Package:
    Software NamePurpose
    NUCLSQrefinement
    ULTIMAphasing

    Structure Validation

    View Full Validation Report



    Entry History & Funding Information

    Deposition Data


    Funding OrganizationLocationGrant Number
    National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)--
    Israel Science Foundation--
    United States - Israel Binational Science Foundation (BSF)--

    Revision History 

    • Version 1.0: 2020-10-14
      Type: Initial release
    • Version 1.1: 2020-10-21
      Changes: Structure summary