1FJL

HOMEODOMAIN FROM THE DROSOPHILA PAIRED PROTEIN BOUND TO A DNA OLIGONUCLEOTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

High resolution crystal structure of a paired (Pax) class cooperative homeodomain dimer on DNA.

Wilson, D.S.Guenther, B.Desplan, C.Kuriyan, J.

(1995) Cell 82: 709-719


  • PubMed Abstract: 
  • The crystal structure of the paired homeodomain bound to DNA as a cooperative dimer has been determined to 2.0 A resolution. Direct contacts between each homeodomain and the DNA are similar to those described previously. In addition, an extensive net ...

    The crystal structure of the paired homeodomain bound to DNA as a cooperative dimer has been determined to 2.0 A resolution. Direct contacts between each homeodomain and the DNA are similar to those described previously. In addition, an extensive network of water molecules mediates contacts between the recognition helix and the DNA major groove. Several symmetrical contacts between the two homeodomains underlie the cooperative interaction, and deformations in the DNA structure are necessary for the establishment of these contacts. Comparison with structures of homeodomains bound monomerically to DNA suggests that the binding of a single paired homeodomain can introduce these DNA distortions, thus preparing a template for the cooperative interaction with a second homeodomain. This study shows how the paired (Pax) class homeodomains have achieved cooperativity in DNA binding without the assistance of other domains, thereby enabling the recognition of target sequences that are long enough to ensure specificity.


    Organizational Affiliation

    Laboratories of Molecular Biophysics, Howard Hughes Medical Institute, Rockefeller University, New York, New York 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PAIRED PROTEIN
A, B, C
81Drosophila melanogasterGene Names: prd
Find proteins for P06601 (Drosophila melanogaster)
Go to UniProtKB:  P06601
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*AP*TP*AP*AP*TP*CP*TP*GP*AP*TP*TP*AP*C)-3')D14N/A
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*GP*TP*AP*AP*TP*CP*AP*GP*AP*TP*TP*AP*T)-3')E14N/A
Entity ID: 4
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*GP*TP*AP*AP*TP*CP*TP*GP*AP*TP*TP*AP*C)-3')F14N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.198 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 72.210α = 90.00
b = 146.890β = 90.00
c = 77.230γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-06-20
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance