1TRO

CRYSTAL STRUCTURE OF TRP REPRESSOR OPERATOR COMPLEX AT ATOMIC RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Observed: 0.167 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of trp repressor/operator complex at atomic resolution.

Otwinowski, Z.Schevitz, R.W.Zhang, R.G.Lawson, C.L.Joachimiak, A.Marmorstein, R.Q.Luisi, B.F.Sigler, P.B.

(1988) Nature 335: 321-329

  • DOI: 10.1038/335321a0
  • Primary Citation of Related Structures:  
    1TRO

  • PubMed Abstract: 
  • The crystal structure of the trp repressor/operator complex shows an extensive contact surface, including 24 direct and 6 solvent-mediated hydrogen bonds to the phosphate groups of the DNA. There are no direct hydrogen bonds or non-polar contacts to the bases that can explain the repressor's specificity for the operator sequence ...

    The crystal structure of the trp repressor/operator complex shows an extensive contact surface, including 24 direct and 6 solvent-mediated hydrogen bonds to the phosphate groups of the DNA. There are no direct hydrogen bonds or non-polar contacts to the bases that can explain the repressor's specificity for the operator sequence. Rather, the sequence seems to be recognized indirectly through its effects on the geometry of the phosphate backbone, which in turn permits the formation of a stable interface. Water-mediated polar contacts to the bases also appear to contribute part of the specificity.


    Related Citations: 
    • Crystal of the Trp Repressor-Operator Complex Suitable for X-Ray Diffraction Analysis
      Joachimiak, A., Marmorstein, R., Schevitz, R., Mandecki, W., Fox, J.L., Sigler, P.B.
      (1987) J Biol Chem 262: 4917

    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of Chicago, Illinois 60637.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (TRP REPRESSOR)E [auth A], F [auth C], G [auth E], H [auth G]108Escherichia coli str. K-12 substr. W3110Mutation(s): 0 
Find proteins for P0A881 (Escherichia coli (strain K12))
Explore P0A881 
Go to UniProtKB:  P0A881
Protein Feature View
Expand
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*TP*GP*TP*AP*CP*TP*AP*GP*TP*TP*AP*AP*CP*TP*AP*GP*T P*AP*C)-3')A [auth I], B [auth J], C [auth K], D [auth L]19N/A
    Small Molecules
    Ligands 1 Unique
    IDChainsName / Formula / InChI Key2D Diagram3D Interactions
    TRP
    Query on TRP

    Download Ideal Coordinates CCD File 
    I [auth A], J [auth A], K [auth E], L [auth G]TRYPTOPHAN
    C11 H12 N2 O2
    QIVBCDIJIAJPQS-VIFPVBQESA-N
     Ligand Interaction
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 1.90 Å
    • R-Value Observed: 0.167 
    • Space Group: P 1 21 1
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 43.65α = 90
    b = 72.43β = 94.96
    c = 107.39γ = 90
    Software Package:
    Software NamePurpose
    PROLSQrefinement

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History  (Full details and data files)

    • Version 1.0: 1994-01-31
      Type: Initial release
    • Version 1.1: 2008-05-22
      Changes: Version format compliance
    • Version 1.2: 2011-07-13
      Changes: Source and taxonomy, Version format compliance
    • Version 1.3: 2020-05-13
      Changes: Data collection, Database references, Structure summary