1JGG

Even-skipped Homeodomain Complexed to AT-rich DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the even-skipped homeodomain complexed to AT-rich DNA: new perspectives on homeodomain specificity.

Hirsch, J.A.Aggarwal, A.K.

(1995) EMBO J. 14: 6280-6291


  • PubMed Abstract: 
  • even-skipped is a homeobox gene important in controlling segment patterning in the embryonic fruit fly. Its homeobox encodes a DNA binding domain which binds with similar affinities to two DNA consensus sequences, one AT-rich, the other GC-rich. We d ...

    even-skipped is a homeobox gene important in controlling segment patterning in the embryonic fruit fly. Its homeobox encodes a DNA binding domain which binds with similar affinities to two DNA consensus sequences, one AT-rich, the other GC-rich. We describe a crystallographic analysis of the Even-skipped homeodomain complexed to an AT-rich oligonucleotide at 2.0 A resolution. The structure reveals a novel arrangement of two homeodomains bound to one 10 bp DNA sequence in a tandem fashion. This arrangement suggests a mechanism for the homeoproteins' regulatory specificity. In addition, the functionally important residue Gln50 is observed in multiple conformations making direct and water-mediated hydrogen bonds with the DNA bases.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biophysics, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Segmentation Protein Even-Skipped
A, B
60Drosophila melanogasterGene Names: eve
Find proteins for P06602 (Drosophila melanogaster)
Go to UniProtKB:  P06602
Entity ID: 1
MoleculeChainsLengthOrganism
5'-D(P*TP*AP*AP*TP*TP*GP*AP*AP*TP*T)-3'C10N/A
Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(P*AP*AP*TP*TP*CP*AP*AP*TP*TP*A)-3'D10N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.229 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 34.060α = 90.00
b = 61.610β = 90.00
c = 39.990γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
CCP4data scaling
DENZOdata reduction
ROTAVATAdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-07-06
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description