1D76

CRYSTAL AND MOLECULAR STRUCTURE OF A DNA FRAGMENT CONTAINING A 2-AMINO ADENINE MODIFICATION: THE RELATIONSHIP BETWEEN CONFORMATION, PACKING, AND HYDRATION IN Z-DNA HEXAMERS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal and molecular structure of a DNA fragment containing a 2-aminoadenine modification: the relationship between conformation, packing, and hydration in Z-DNA hexamers.

Schneider, B.Ginell, S.L.Jones, R.Gaffney, B.Berman, H.M.

(1992) Biochemistry 31: 9622-9628


  • PubMed Abstract: 
  • The crystal and molecular structure of d(CGUA'CG)2 (where A' is 2-aminoadenine) has been determined and refined to an R factor of 13.8% for data 8.0-1.3 A. The structure is very similar to the original Z-DNA structures with the sequence d(CGCGCG)2 [G ...

    The crystal and molecular structure of d(CGUA'CG)2 (where A' is 2-aminoadenine) has been determined and refined to an R factor of 13.8% for data 8.0-1.3 A. The structure is very similar to the original Z-DNA structures with the sequence d(CGCGCG)2 [Gessner, R. V., Frederick, C. A., Quigley, G. J., Rich, A., & Wang, A. H.-J. (1989) J. Biol. Chem. 264, 7921] and shows that the substitution of 2-aminoadenine-uracil base pairs in the two central steps is consistent with Z-DNA formation. In addition, we show how waters mediating intermolecular interactions may help to explain the ZI-ZII conformational pattern found in many Z-DNA structures.


    Organizational Affiliation

    Department of Chemistry, Rutgers, State University of New Jersey, New Brunswick 08903.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*GP*UP*(1AP)P*CP*G)-3')A,B6N/A
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
1AP
Query on 1AP
A, B
DNA LINKINGC10 H15 N6 O6 PDA
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 17.944α = 90.00
b = 31.282β = 90.00
c = 44.701γ = 90.00
Software Package:
Software NamePurpose
NUCLSQrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1992-09-15
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance