1TRO

CRYSTAL STRUCTURE OF TRP REPRESSOR OPERATOR COMPLEX AT ATOMIC RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 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

  • 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 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: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (TRP REPRESSOR)
A, C, E, G
108Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: trpR (rtrY)
Find proteins for P0A881 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A881
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*GP*TP*AP*CP*TP*AP*GP*TP*TP*AP*AP*CP*TP*AP*GP*T P*AP*C)-3')I,J,K,L19N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TRP
Query on TRP

Download SDF File 
Download CCD File 
A, E, G
TRYPTOPHAN
C11 H12 N2 O2
QIVBCDIJIAJPQS-VIFPVBQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 43.650α = 90.00
b = 72.430β = 94.96
c = 107.390γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance