2D94

THE CONFORMATION OF THE DNA DOUBLE HELIX IN THE CRYSTAL IS DEPENDENT ON ITS ENVIRONMENT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The conformation of the DNA double helix in the crystal is dependent on its environment.

Shakked, Z.Guerstein-Guzikevich, G.Eisenstein, M.Frolow, F.Rabinovich, D.

(1989) Nature 342: 456-460

  • DOI: 10.1038/342456a0
  • Primary Citation of Related Structures:  1VT8

  • PubMed Abstract: 
  • Studies of the crystal structures of more than 30 synthetic DNA fragments have provided structural information about three basic forms of the double helix: A-, B- and Z-form DNA. These studies have demonstrated that the DNA double helix adopts a high ...

    Studies of the crystal structures of more than 30 synthetic DNA fragments have provided structural information about three basic forms of the double helix: A-, B- and Z-form DNA. These studies have demonstrated that the DNA double helix adopts a highly variable structure which is related to its base sequence. The extent to which such observed structures are influenced by the crystalline environment can be found by studying the same molecule in different crystalline forms. We have recently crystallized one particular oligomer in various crystal forms. Here we report the results of structural analyses of the different crystal structures and demonstrate that the DNA double helix can adopt a range of conformations in the crystalline state depending on hydration, molecular packing and temperature. These results have implications on our understanding of the influence of the environment on DNA structure, and on the modes of DNA recognition by proteins.


    Related Citations: 
    • Structures of the Mismatched Duplex d(GGGTGCCC) and One of Its Watson-Crick Analogues d(GGGCGCCC)
      Rabinovich, D.,Haran, T.,Eisenstein, M.,Shakked, Z.
      (1988) J.Mol.Biol. 200: 151


    Organizational Affiliation

    Department of Structural Chemistry, Weizmann Institute of Science, Rehovot, Israel.




Macromolecules

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Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*GP*GP*CP*GP*CP*CP*C)-3')A8N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 43.280α = 90.00
b = 43.280β = 90.00
c = 24.660γ = 90.00
Software Package:
Software NamePurpose
NUCLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-15
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance