272D

PARALLEL AND ANTIPARALLEL (G.GC)2 TRIPLE HELIX FRAGMENTS IN A CRYSTAL STRUCTURE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Parallel and antiparallel (G.GC)2 triple helix fragments in a crystal structure.

Vlieghe, D.Van Meervelt, L.Dautant, A.Gallois, B.Precigoux, G.Kennard, O.

(1996) Science 273: 1702-1705


  • PubMed Abstract: 
  • Nucleic acid triplexes are formed by sequence-specific interactions between single-stranded polynucleotides and the double helix. These triplexes are implicated in genetic recombination in vivo and have application to areas that include genome analys ...

    Nucleic acid triplexes are formed by sequence-specific interactions between single-stranded polynucleotides and the double helix. These triplexes are implicated in genetic recombination in vivo and have application to areas that include genome analysis and antigene therapy. Despite the importance of the triple helix, only limited high-resolution structural information is available. The x-ray crystal structure of the oligonucleotide d(GGCCAATTGG) is described; it was designed to contain the d(G middle dotGC)2 fragment and thus provide the basic repeat unit of a DNA triple helix. Parameters derived from this crystal structure have made it possible to construct models of both parallel and antiparallel triple helices.


    Organizational Affiliation

    Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium. Structurale, EP CNRS, Université de Bordeaux.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*GP*CP*CP*AP*AP*TP*TP*GP*G)-3')A,B10N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 26.250α = 90.00
b = 36.820β = 90.00
c = 53.230γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
IPMOSFLMdata reduction
ABSCALEdata scaling
SHELXL-93refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-09-20
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance